public static DetermineLenghtOfFSPEC ( byte Data ) : int | ||
Data | byte | |
Résultat | int |
// This method returns the index to the first // byte of the user data after FSPEC, SIC and SAC // assumes that the first three octets from the data // block are removed from the buffer public static int GetFirstDataIndex(byte[] Data) { // Determine Length of FSPEC fields in bytes int FSPEC_Length = ASTERIX.DetermineLenghtOfFSPEC(Data); // Determine SIC/SAC Index int SIC_Index = FSPEC_Length; int SAC_Index = SIC_Index + 1; return(SAC_Index + 1); }
// Do not bother to decode CAT244, not really important for us. Just determine that // it is present for now. public string Decode(byte[] Data, string Time) { // Define output data buffer string DataOut; // Determine Length of FSPEC fields in bytes int FSPEC_Length = ASTERIX.DetermineLenghtOfFSPEC(Data); // Determine SIC/SAC Index // No SIC/SAC for CAT244 // Extract SIC/SAC Indexes. DataOut = "N/A" + '/' + "N/A"; // Creates and initializes a BitVector32 with all bit flags set to FALSE. BitVector32 FourFSPECOctets = ASTERIX.GetFourFSPECOctets(Data); // Return decoded data return(DataOut); }
public string[] Decode(byte[] DataBlockBuffer, string Time, out int NumOfMessagesDecoded) { // Define output data buffer string[] DataOut = new string[1000]; // Determine the size of the datablock int LengthOfDataBlockInBytes = DataBlockBuffer.Length; // Index into the array of record strings int DataOutIndex = 0; // Reset buffer indexes CurrentDataBufferOctalIndex = 0; int DataBufferIndexForThisExtraction = 0; // SIC/SAC Indexes int SIC_Index = 0; int SAC_Index = 0; // Save off SIC/SAC and time in the case they are not present // in each message. Some implementation have it only in the first record int SIC = 0; int SAC = 0; // Lenght of the current record's FSPECs int FSPEC_Length = 0; // The four possible FSPEC octets BitVector32 FourFSPECOctets = new BitVector32(); while ((DataBufferIndexForThisExtraction) < LengthOfDataBlockInBytes) { // Assume that there will be no more than 300 bytes in one record byte[] LocalSingleRecordBuffer = new byte[3000]; Array.Copy(DataBlockBuffer, DataBufferIndexForThisExtraction, LocalSingleRecordBuffer, 0, (LengthOfDataBlockInBytes - DataBufferIndexForThisExtraction)); // Get all four data words, but use only the number specifed // by the length of FSPEC words FourFSPECOctets = ASTERIX.GetFourFSPECOctets(LocalSingleRecordBuffer); // Determine Length of FSPEC fields in bytes FSPEC_Length = ASTERIX.DetermineLenghtOfFSPEC(LocalSingleRecordBuffer); // Check wether 010 is present if (FourFSPECOctets[Bit_Ops.Bit7] == true) { // Determine SIC/SAC Index SIC_Index = FSPEC_Length; SAC_Index = SIC_Index + 1; // Extract SIC/SAC Indexes. DataOut[DataOutIndex] = LocalSingleRecordBuffer[SIC_Index].ToString() + '/' + LocalSingleRecordBuffer[SAC_Index].ToString(); // Save off data for other records SIC = LocalSingleRecordBuffer[SIC_Index]; SAC = LocalSingleRecordBuffer[SAC_Index]; // Save of the current data buffer index so it can be used by // Decoder CurrentDataBufferOctalIndex = SAC_Index + 1; } else { CurrentDataBufferOctalIndex = FSPEC_Length; // Extract SIC/SAC Indexes. DataOut[DataOutIndex] = SIC.ToString() + '/' + SAC.ToString(); } /////////////////////////////////////////////////////////////////////////// // Populate the current SIC/SAC and Time stamp for this meesage // I048DataItems[ItemIDToIndex("010")].value = new ASTERIX.SIC_SAC_Time(SIC, SAC, ASTERIX.TimeOfReception); Reset_Currently_Present_Flags(); // Loop for each FSPEC and determine what data item is present for (int FSPEC_Index = 1; FSPEC_Index <= FSPEC_Length; FSPEC_Index++) { switch (FSPEC_Index) { case 1: // 010 Data Source Identifier if (FourFSPECOctets[Bit_Ops.Bit7] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 010:T"; I048DataItems[ItemIDToIndex("010")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("010")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 010:F"; } // 140 Time-of-Day if (FourFSPECOctets[Bit_Ops.Bit6] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 140:T"; I048DataItems[ItemIDToIndex("140")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("140")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 140:F"; } // 020 Target Report Descriptor if (FourFSPECOctets[Bit_Ops.Bit5] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 020:T"; I048DataItems[ItemIDToIndex("020")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("020")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 020:F"; } // 040 Measured Position in Slant Polar Coordinates if (FourFSPECOctets[Bit_Ops.Bit4] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 040:T"; I048DataItems[ItemIDToIndex("040")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("040")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 040:F"; } // 070 Mode-3/A Code in Octal Representation if (FourFSPECOctets[Bit_Ops.Bit3] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 070:T"; I048DataItems[ItemIDToIndex("070")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("070")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 070:F"; } // 090 Flight Level in Binary Representation if (FourFSPECOctets[Bit_Ops.Bit2] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 090:T"; I048DataItems[ItemIDToIndex("090")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("090")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 090:F"; } // 130 Radar Plot Characteristics if (FourFSPECOctets[Bit_Ops.Bit1] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 130:T"; I048DataItems[ItemIDToIndex("130")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("130")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 130:F"; } break; case 2: // 220 Aircraft Address if (FourFSPECOctets[Bit_Ops.Bit15] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 220:T"; I048DataItems[ItemIDToIndex("220")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("220")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 220:F"; } // 240 Aircraft Identification if (FourFSPECOctets[Bit_Ops.Bit14] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 240:T"; I048DataItems[ItemIDToIndex("240")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("240")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 240:F"; } // 250 Mode S MB Data if (FourFSPECOctets[Bit_Ops.Bit13] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 250:T"; I048DataItems[ItemIDToIndex("250")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("250")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 250:F"; } // 161 Track Number if (FourFSPECOctets[Bit_Ops.Bit12] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 161:T"; I048DataItems[ItemIDToIndex("161")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("161")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 161:F"; } // 042 Calculated Position in Cartesian Coordinates if (FourFSPECOctets[Bit_Ops.Bit11] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 042:T"; I048DataItems[ItemIDToIndex("042")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("042")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 042:F"; } // 200 Calculated Track Velocity in Polar Representation if (FourFSPECOctets[Bit_Ops.Bit10] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 200:T"; I048DataItems[ItemIDToIndex("200")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("200")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 200:F"; } // 170 Track Status if (FourFSPECOctets[Bit_Ops.Bit9] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 170:T"; I048DataItems[ItemIDToIndex("170")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("170")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 170:F"; } break; case 3: // 210 Track Quality if (FourFSPECOctets[Bit_Ops.Bit23] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 210:T"; I048DataItems[ItemIDToIndex("210")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("210")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 210:F"; } // 030 Warning/Error Conditions if (FourFSPECOctets[Bit_Ops.Bit22] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 030:T"; I048DataItems[ItemIDToIndex("030")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("030")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 030:F"; } // 080 Mode-3/A Code Confidence Indicator if (FourFSPECOctets[Bit_Ops.Bit21] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 080:T"; I048DataItems[ItemIDToIndex("080")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("080")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 080:F"; } // 100 Mode-C Code and Confidence Indicator if (FourFSPECOctets[Bit_Ops.Bit20] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 100:T"; I048DataItems[ItemIDToIndex("100")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("100")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 100:F"; } // 110 Height Measured by 3D Radar if (FourFSPECOctets[Bit_Ops.Bit19] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 110:T"; I048DataItems[ItemIDToIndex("110")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("110")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 110:F"; } // 120 Radial Doppler Speed if (FourFSPECOctets[Bit_Ops.Bit18] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 120:T"; I048DataItems[ItemIDToIndex("120")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("120")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 120:F"; } // 230 Communications / ACAS Capability and Flight Status if (FourFSPECOctets[Bit_Ops.Bit17] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 230:T"; I048DataItems[ItemIDToIndex("230")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("230")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 230:F"; } break; case 4: // 260 ACAS Resolution Advisory Report if (FourFSPECOctets[Bit_Ops.Bit31] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 260:T"; I048DataItems[ItemIDToIndex("260")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("260")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 260:F"; } // 55 Mode-1 Code in Octal Representation if (FourFSPECOctets[Bit_Ops.Bit30] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 55:T"; I048DataItems[ItemIDToIndex("055")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("055")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 55:F"; } // 50 Mode-2 Code in Octal Representation if (FourFSPECOctets[Bit_Ops.Bit29] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 50:T"; I048DataItems[ItemIDToIndex("050")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("050")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 50:F"; } // 65 Mode-1 Code Confidence Indicator if (FourFSPECOctets[Bit_Ops.Bit28] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 65:T"; I048DataItems[ItemIDToIndex("065")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("065")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 65:F"; } // 60 Mode-2 Code Confidence Indicator if (FourFSPECOctets[Bit_Ops.Bit27] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 60:T"; I048DataItems[ItemIDToIndex("060")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("060")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 60:F"; } if (FourFSPECOctets[Bit_Ops.Bit26] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " SPI:T"; I048DataItems[ItemIDToIndex("SPI")].HasBeenPresent = true; I048DataItems[ItemIDToIndex("SPI")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " SPI:F"; } if (FourFSPECOctets[Bit_Ops.Bit25] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " Reserved Expansion"; } break; // Handle errors default: DataOut[DataOutIndex] = DataOut[DataOutIndex] + " UKN:T"; break; } } DataOutIndex++; CAT48DecodeAndStore.Do(LocalSingleRecordBuffer); DataBufferIndexForThisExtraction = DataBufferIndexForThisExtraction + CurrentDataBufferOctalIndex + 1; } // Return decoded data NumOfMessagesDecoded = DataOutIndex; return(DataOut); }
public string Decode(byte[] Data, string Time) { // Define output data buffer string DataOut; // Determine Length of FSPEC fields in bytes int FSPEC_Length = ASTERIX.DetermineLenghtOfFSPEC(Data); // Determine SIC/SAC Index int SIC_Index = 3 + FSPEC_Length; int SAC_Index = SIC_Index + 1; // Extract SIC/SAC Indexes. DataOut = Data[SIC_Index].ToString() + '/' + Data[SAC_Index].ToString(); // Creates and initializes a BitVector32 with all bit flags set to FALSE. BitVector32 FourFSPECOctets = ASTERIX.GetFourFSPECOctets(Data); // Loop for each FSPEC and determine what data item is present for (int FSPEC_Index = 1; FSPEC_Index <= FSPEC_Length; FSPEC_Index++) { switch (FSPEC_Index) { case 1: // 010 Data Source Identifier if (FourFSPECOctets[Bit_Ops.Bit7] == true) { DataOut = DataOut + " 010:T"; I065DataItems[ItemIDToIndex("010")].IsPresent = true; } else { DataOut = DataOut + " 010:F"; } // 000 Message Type if (FourFSPECOctets[Bit_Ops.Bit6] == true) { DataOut = DataOut + " 000:T"; I065DataItems[ItemIDToIndex("000")].IsPresent = true; } else { DataOut = DataOut + " 000:F"; } // 015 Service Identification if (FourFSPECOctets[Bit_Ops.Bit5] == true) { DataOut = DataOut + " 015:T"; I065DataItems[ItemIDToIndex("015")].IsPresent = true; } else { DataOut = DataOut + " 015:F"; } // 030 Time of Message if (FourFSPECOctets[Bit_Ops.Bit4] == true) { DataOut = DataOut + " 030:T"; I065DataItems[ItemIDToIndex("030")].IsPresent = true; } else { DataOut = DataOut + " 030:F"; } // 020 Batch Number if (FourFSPECOctets[Bit_Ops.Bit3] == true) { DataOut = DataOut + " 020:T"; I065DataItems[ItemIDToIndex("020")].IsPresent = true; } else { DataOut = DataOut + " 020:F"; } // 040 SDPS Configuration and Status if (FourFSPECOctets[Bit_Ops.Bit2] == true) { DataOut = DataOut + " 040:T"; I065DataItems[ItemIDToIndex("040")].IsPresent = true; } else { DataOut = DataOut + " 040:F"; } // 050 Service Status Report if (FourFSPECOctets[Bit_Ops.Bit1] == true) { DataOut = DataOut + " 050:T"; I065DataItems[ItemIDToIndex("050")].IsPresent = true; } else { DataOut = DataOut + " 050:F"; } break; // Handle errors default: DataOut = DataOut + " UKN:T"; break; } CAT65DecodeAndStore.Do(Data); } // Return decoded data return(DataOut); }
public string Decode(byte[] Data, string Time) { // Define output data buffer string DataOut; // Determine Length of FSPEC fields in bytes int FSPEC_Length = ASTERIX.DetermineLenghtOfFSPEC(Data); // Determine SIC/SAC Index int SIC_Index = 3 + FSPEC_Length; int SAC_Index = SIC_Index + 1; // Extract SIC/SAC Indexes. DataOut = Data[SIC_Index].ToString() + '/' + Data[SAC_Index].ToString(); // Creates and initializes a BitVector32 with all bit flags set to FALSE. BitVector32 FourFSPECOctets = ASTERIX.GetFourFSPECOctets(Data); // Loop for each FSPEC and determine what data item is present for (int FSPEC_Index = 1; FSPEC_Index <= FSPEC_Length; FSPEC_Index++) { switch (FSPEC_Index) { case 1: // 010 Data Source Identifier if (FourFSPECOctets[Bit_Ops.Bit0] == true) { DataOut = DataOut + " 010:T"; I008DataItems[ItemIDToIndex("010")].IsPresent = true; } else { DataOut = DataOut + " 010:F"; } // 000 Message Type if (FourFSPECOctets[Bit_Ops.Bit1] == true) { DataOut = DataOut + " 000:T"; I008DataItems[ItemIDToIndex("000")].IsPresent = true; } else { DataOut = DataOut + " 000:F"; } // 020 Vector Qualifier if (FourFSPECOctets[Bit_Ops.Bit2] == true) { DataOut = DataOut + " 020:T"; I008DataItems[ItemIDToIndex("020")].IsPresent = true; } else { DataOut = DataOut + " 020:F"; } // 036 Sequence of Cartesian Vectors in SPF Notation if (FourFSPECOctets[Bit_Ops.Bit3] == true) { DataOut = DataOut + " 036:T"; I008DataItems[ItemIDToIndex("036")].IsPresent = true; } else { DataOut = DataOut + " 036:F"; } // 034 Sequence of Polar Vectors in SPF Notation if (FourFSPECOctets[Bit_Ops.Bit4] == true) { DataOut = DataOut + " 034:T"; I008DataItems[ItemIDToIndex("034")].IsPresent = true; } else { DataOut = DataOut + " 034:F"; } // 040 Contour Identifier if (FourFSPECOctets[Bit_Ops.Bit5] == true) { DataOut = DataOut + " 040:T"; I008DataItems[ItemIDToIndex("040")].IsPresent = true; } else { DataOut = DataOut + " 040:F"; } // 050 Sequence of Contour Points in SPF Notation if (FourFSPECOctets[Bit_Ops.Bit6] == true) { DataOut = DataOut + " 050:T"; I008DataItems[ItemIDToIndex("050")].IsPresent = true; } else { DataOut = DataOut + " 050:F"; } break; case 2: // 090 Time of Day if (FourFSPECOctets[Bit_Ops.Bit8] == true) { DataOut = DataOut + " 090:T"; I008DataItems[ItemIDToIndex("090")].IsPresent = true; } else { DataOut = DataOut + " 090:F"; } // 100 Processing Status if (FourFSPECOctets[Bit_Ops.Bit9] == true) { DataOut = DataOut + " 100:T"; I008DataItems[ItemIDToIndex("100")].IsPresent = true; } else { DataOut = DataOut + " 100:F"; } // 110 Station Configuration Status if (FourFSPECOctets[Bit_Ops.Bit10] == true) { DataOut = DataOut + " 110:T"; I008DataItems[ItemIDToIndex("110")].IsPresent = true; } else { DataOut = DataOut + " 110:F"; } // 120 Total Number of Items Constituting One Weather Picture if (FourFSPECOctets[Bit_Ops.Bit11] == true) { DataOut = DataOut + " 120:T"; I008DataItems[ItemIDToIndex("120")].IsPresent = true; } else { DataOut = DataOut + " 120:F"; } // 038 Sequence of Weather Vectors in SPF Notation if (FourFSPECOctets[Bit_Ops.Bit12] == true) { DataOut = DataOut + " 038:T"; I008DataItems[ItemIDToIndex("038")].IsPresent = true; } else { DataOut = DataOut + " 038:F"; } break; // Handle errors default: DataOut = DataOut + " UKN:T"; break; } CAT08DecodeAndStore.Do(Data); } // Return decoded data return(DataOut); }
public string Decode(byte[] Data, string Time) { // Define output data buffer string DataOut; // Determine Length of FSPEC fields in bytes int FSPEC_Length = ASTERIX.DetermineLenghtOfFSPEC(Data); // Determine SIC/SAC Index int SIC_Index = 2 + FSPEC_Length; int SAC_Index = SIC_Index + 1; // Extract SIC/SAC Indexes. DataOut = Data[SIC_Index].ToString() + '/' + Data[SAC_Index].ToString(); // Creates and initializes a BitVector32 with all bit flags set to FALSE. BitVector32 FourFSPECOctets = ASTERIX.GetFourFSPECOctets(Data); // Loop for each FSPEC and determine what data item is present for (int FSPEC_Index = 1; FSPEC_Index <= FSPEC_Length; FSPEC_Index++) { switch (FSPEC_Index) { case 1: // 010 Data Source Identifier if (FourFSPECOctets[Bit_Ops.Bit7] == true) { DataOut = DataOut + " 010:T"; I063DataItems[ItemIDToIndex("010")].IsPresent = true; } else { DataOut = DataOut + " 010:F"; } // 015, Service Identification if (FourFSPECOctets[Bit_Ops.Bit6] == true) { DataOut = DataOut + " 015:T"; I063DataItems[ItemIDToIndex("015")].IsPresent = true; } else { DataOut = DataOut + " 015:F"; } // 030, Time of Message if (FourFSPECOctets[Bit_Ops.Bit5] == true) { DataOut = DataOut + " 030:T"; I063DataItems[ItemIDToIndex("030")].IsPresent = true; } else { DataOut = DataOut + " 030:F"; } // 050, Sensor Identifier if (FourFSPECOctets[Bit_Ops.Bit4] == true) { DataOut = DataOut + " 050:T"; I063DataItems[ItemIDToIndex("050")].IsPresent = true; } else { DataOut = DataOut + " 050:F"; } // 060, Sensor Configuration and Status if (FourFSPECOctets[Bit_Ops.Bit3] == true) { DataOut = DataOut + " 060:T"; I063DataItems[ItemIDToIndex("060")].IsPresent = true; } else { DataOut = DataOut + " 060:F"; } // 070, Time Stamping Bias if (FourFSPECOctets[Bit_Ops.Bit2] == true) { DataOut = DataOut + " 070:T"; I063DataItems[ItemIDToIndex("070")].IsPresent = true; } else { DataOut = DataOut + " 070:F"; } // 080, SSR / Mode S Range Gain and Bias if (FourFSPECOctets[Bit_Ops.Bit1] == true) { DataOut = DataOut + " 080:T"; I063DataItems[ItemIDToIndex("080")].IsPresent = true; } else { DataOut = DataOut + " 080:F"; } break; case 2: // 081, SSR / Mode S Azimuth Bias if (FourFSPECOctets[Bit_Ops.Bit15] == true) { DataOut = DataOut + " 081:T"; I063DataItems[ItemIDToIndex("081")].IsPresent = true; } else { DataOut = DataOut + " 081:F"; } // 090, PSR Range Gain and Bias if (FourFSPECOctets[Bit_Ops.Bit14] == true) { DataOut = DataOut + " 090:T"; I063DataItems[ItemIDToIndex("090")].IsPresent = true; } else { DataOut = DataOut + " 090:F"; } // 091, PSR Azimuth Bias if (FourFSPECOctets[Bit_Ops.Bit13] == true) { DataOut = DataOut + " 091:T"; I063DataItems[ItemIDToIndex("091")].IsPresent = true; } else { DataOut = DataOut + " 091:F"; } // 092, PSR Elevation Bias if (FourFSPECOctets[Bit_Ops.Bit12] == true) { DataOut = DataOut + " 092:T"; I063DataItems[ItemIDToIndex("092")].IsPresent = true; } else { DataOut = DataOut + " 092:F"; } // Spare if (FourFSPECOctets[Bit_Ops.Bit11] == true) { DataOut = DataOut + " SPR:T"; } else { DataOut = DataOut + " SPR:F"; } // RE Reserved Expansion Field if (FourFSPECOctets[Bit_Ops.Bit10] == true) { DataOut = DataOut + " RES:T"; } else { DataOut = DataOut + " RES:F"; } // SP Special Purpose Field if (FourFSPECOctets[Bit_Ops.Bit9] == true) { DataOut = DataOut + " SPF:T"; } else { DataOut = DataOut + " SPF:F"; } break; // Handle errors default: DataOut = DataOut + " UKN:T"; break; } CAT63DecodeAndStore.Do(Data); } // Return decoded data return(DataOut); }
public string[] Decode(byte[] DataBlockBuffer, string Time, out int NumOfMessagesDecoded) { // Define output data buffer string[] DataOut = new string[3000]; // Determine the size of the datablock int LengthOfDataBlockInBytes = DataBlockBuffer.Length; // Index into the array of record strings int DataOutIndex = 0; // Reset buffer indexes CurrentDataBufferOctalIndex = 0; int DataBufferIndexForThisExtraction = 0; // Determine SIC/SAC Index int SIC_Index = 0; int SAC_Index = 0; // Lenght of the current record's FSPECs int FSPEC_Length = 0; // Creates and initializes a BitVector32 with all bit flags set to FALSE. BitVector32 FourFSPECOctets = new BitVector32(); while (DataBufferIndexForThisExtraction < LengthOfDataBlockInBytes) { // Assume that there will be no more than 1000 bytes in one record byte[] LocalSingleRecordBuffer = new byte[3000]; Array.Copy(DataBlockBuffer, DataBufferIndexForThisExtraction, LocalSingleRecordBuffer, 0, (LengthOfDataBlockInBytes - DataBufferIndexForThisExtraction)); // Get all four data words, but use only the number specifed // by the length of FSPEC words FourFSPECOctets = ASTERIX.GetFourFSPECOctets(LocalSingleRecordBuffer); // Determine Length of FSPEC fields in bytes FSPEC_Length = ASTERIX.DetermineLenghtOfFSPEC(LocalSingleRecordBuffer); // Check wether 010 is present if (FourFSPECOctets[Bit_Ops.Bit7] == true) { // Determine SIC/SAC Index SIC_Index = FSPEC_Length; SAC_Index = SIC_Index + 1; // Extract SIC/SAC Indexes. DataOut[DataOutIndex] = LocalSingleRecordBuffer[SIC_Index].ToString() + '/' + LocalSingleRecordBuffer[SAC_Index].ToString(); // Save of the current data buffer index so it can be used by // Decoder CurrentDataBufferOctalIndex = SAC_Index + 1; } else { // Extract SIC/SAC Indexes. DataOut[DataOutIndex] = "---" + '/' + "---"; } /////////////////////////////////////////////////////////////////////////// // Populate the current SIC/SAC and Time stamp for this meesage // I002DataItems[ItemIDToIndex("010")].value = new ASTERIX.SIC_SAC_Time(LocalSingleRecordBuffer[SIC_Index], LocalSingleRecordBuffer[SAC_Index], ASTERIX.TimeOfReception); // Loop for each FSPEC and determine what data item is present for (int FSPEC_Index = 1; FSPEC_Index <= FSPEC_Length; FSPEC_Index++) { switch (FSPEC_Index) { case 1: // 010 Data Source Identifier if (FourFSPECOctets[Bit_Ops.Bit7] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 010:T"; I002DataItems[ItemIDToIndex("010")].HasBeenPresent = true; I002DataItems[ItemIDToIndex("010")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 010:F"; I002DataItems[ItemIDToIndex("010")].CurrentlyPresent = false; } // 000 Message Type if (FourFSPECOctets[Bit_Ops.Bit6] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 000:T"; I002DataItems[ItemIDToIndex("000")].HasBeenPresent = true; I002DataItems[ItemIDToIndex("000")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 000:F"; I002DataItems[ItemIDToIndex("000")].CurrentlyPresent = false; } // 020 Sector Number if (FourFSPECOctets[Bit_Ops.Bit5] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 020:T"; I002DataItems[ItemIDToIndex("020")].HasBeenPresent = true; I002DataItems[ItemIDToIndex("020")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 020:F"; I002DataItems[ItemIDToIndex("020")].CurrentlyPresent = false; } // 030 Time of Day if (FourFSPECOctets[Bit_Ops.Bit4] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 030:T"; I002DataItems[ItemIDToIndex("030")].HasBeenPresent = true; I002DataItems[ItemIDToIndex("030")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 030:F"; I002DataItems[ItemIDToIndex("030")].CurrentlyPresent = false; } // 041 Antenna Rotation Period if (FourFSPECOctets[Bit_Ops.Bit3] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 041:T"; I002DataItems[ItemIDToIndex("041")].HasBeenPresent = true; I002DataItems[ItemIDToIndex("041")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 041:F"; I002DataItems[ItemIDToIndex("041")].CurrentlyPresent = false; } // 050 Station Configuration Status if (FourFSPECOctets[Bit_Ops.Bit2] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 050:T"; I002DataItems[ItemIDToIndex("050")].HasBeenPresent = true; I002DataItems[ItemIDToIndex("050")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 050:F"; I002DataItems[ItemIDToIndex("050")].CurrentlyPresent = false; } // 060 Station Processing Mode if (FourFSPECOctets[Bit_Ops.Bit1] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 060:T"; I002DataItems[ItemIDToIndex("060")].HasBeenPresent = true; I002DataItems[ItemIDToIndex("060")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 060:F"; I002DataItems[ItemIDToIndex("060")].CurrentlyPresent = false; } break; case 2: // 070 Plot Count Values if (FourFSPECOctets[Bit_Ops.Bit15] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 070:T"; I002DataItems[ItemIDToIndex("070")].HasBeenPresent = true; I002DataItems[ItemIDToIndex("070")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 070:F"; I002DataItems[ItemIDToIndex("070")].CurrentlyPresent = false; } // 100 Dynamic Window - Type 1 if (FourFSPECOctets[Bit_Ops.Bit14] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 100:T"; I002DataItems[ItemIDToIndex("100")].HasBeenPresent = true; I002DataItems[ItemIDToIndex("100")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 100:F"; I002DataItems[ItemIDToIndex("100")].CurrentlyPresent = false; } // 090 Collimation Error if (FourFSPECOctets[Bit_Ops.Bit13] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 090:T"; I002DataItems[ItemIDToIndex("090")].HasBeenPresent = true; I002DataItems[ItemIDToIndex("090")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 090:F"; I002DataItems[ItemIDToIndex("090")].CurrentlyPresent = false; } // 080 Warning/Error Conditions if (FourFSPECOctets[Bit_Ops.Bit12] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 080:T"; I002DataItems[ItemIDToIndex("080")].HasBeenPresent = true; I002DataItems[ItemIDToIndex("080")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 080:F"; I002DataItems[ItemIDToIndex("080")].CurrentlyPresent = false; } break; // Handle errors default: DataOut[DataOutIndex] = DataOut[DataOutIndex] + " UKN:T"; break; } } DataOutIndex++; CAT02DecodeAndStore.Do(LocalSingleRecordBuffer); DataBufferIndexForThisExtraction = DataBufferIndexForThisExtraction + CurrentDataBufferOctalIndex + 1; } // Return decoded data NumOfMessagesDecoded = DataOutIndex; return(DataOut); }
public string[] Decode(byte[] DataBlockBuffer, string Time, out int NumOfMessagesDecoded) { // Define output data buffer string[] DataOut = new string[2000]; // Determine the size of the datablock int LengthOfDataBlockInBytes = DataBlockBuffer.Length; // Index into the array of record strings int DataOutIndex = 0; // Reset buffer indexes CurrentDataBufferOctalIndex = 0; int DataBufferIndexForThisExtraction = 0; // SIC/SAC Indexes int SIC_Index = 0; int SAC_Index = 0; // Lenght of the current record's FSPECs int FSPEC_Length = 0; // The first four possible FSPEC octets BitVector32 FourFSPECOctets = new BitVector32(); // The fifth FSPEC octet in the case RE or SP field is present BitVector32 TheFifthFSPECOctet = new BitVector32(); while (DataBufferIndexForThisExtraction < LengthOfDataBlockInBytes) { // Assume that there will be no more than 200 bytes in one record byte[] LocalSingleRecordBuffer = new byte[3000]; Array.Copy(DataBlockBuffer, DataBufferIndexForThisExtraction, LocalSingleRecordBuffer, 0, (LengthOfDataBlockInBytes - DataBufferIndexForThisExtraction)); // Get all four data words, but use only the number specifed // by the length of FSPEC words FourFSPECOctets = ASTERIX.GetFourFSPECOctets(LocalSingleRecordBuffer); TheFifthFSPECOctet = ASTERIX.GetFifthFSPECOctet(LocalSingleRecordBuffer); // Determine Length of FSPEC fields in bytes FSPEC_Length = ASTERIX.DetermineLenghtOfFSPEC(LocalSingleRecordBuffer); // Check wether 010 is present if (FourFSPECOctets[Bit_Ops.Bit7] == true) { // Determine SIC/SAC Index SIC_Index = FSPEC_Length; SAC_Index = SIC_Index + 1; // Extract SIC/SAC Indexes. DataOut[DataOutIndex] = LocalSingleRecordBuffer[SIC_Index].ToString() + '/' + LocalSingleRecordBuffer[SAC_Index].ToString(); // Save of the current data buffer index so it can be used by // Decoder CurrentDataBufferOctalIndex = SAC_Index + 1; } else { // Extract SIC/SAC Indexes. DataOut[DataOutIndex] = "---" + '/' + "---"; } /////////////////////////////////////////////////////////////////////////// // Populate the current SIC/SAC and Time stamp for this meesage // I062DataItems[ItemIDToIndex("010")].value = new ASTERIX.SIC_SAC_Time(LocalSingleRecordBuffer[SIC_Index], LocalSingleRecordBuffer[SAC_Index], ASTERIX.TimeOfReception); // Loop for each FSPEC and determine what data item is present for (int FSPEC_Index = 1; FSPEC_Index <= FSPEC_Length; FSPEC_Index++) { switch (FSPEC_Index) { case 1: // 010 Data Source Identifier if (FourFSPECOctets[Bit_Ops.Bit7] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 010:T"; I062DataItems[ItemIDToIndex("010")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("010")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 010:F"; I062DataItems[ItemIDToIndex("010")].CurrentlyPresent = false; } // Spare bit if (FourFSPECOctets[Bit_Ops.Bit6] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " SPR:T"; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " SPR:F"; } // 015 Service Identification if (FourFSPECOctets[Bit_Ops.Bit5] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 015:T"; I062DataItems[ItemIDToIndex("015")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("015")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 015:F"; I062DataItems[ItemIDToIndex("015")].CurrentlyPresent = false; } // 070 Time Of Track Information if (FourFSPECOctets[Bit_Ops.Bit4] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 070:T"; I062DataItems[ItemIDToIndex("070")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("070")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 070:F"; I062DataItems[ItemIDToIndex("070")].CurrentlyPresent = false; } // 105 Calculated Track Position (WGS-84) if (FourFSPECOctets[Bit_Ops.Bit3] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 105:T"; I062DataItems[ItemIDToIndex("105")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("105")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 105:F"; I062DataItems[ItemIDToIndex("105")].CurrentlyPresent = false; } // 100 Calculated Track Position (Cartesian) if (FourFSPECOctets[Bit_Ops.Bit2] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 100:T"; I062DataItems[ItemIDToIndex("100")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("100")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 100:F"; I062DataItems[ItemIDToIndex("100")].CurrentlyPresent = false; } // 185 Calculated Track Velocity (Cartesian) if (FourFSPECOctets[Bit_Ops.Bit1] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 185:T"; I062DataItems[ItemIDToIndex("185")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("185")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 185:F"; I062DataItems[ItemIDToIndex("185")].CurrentlyPresent = false; } break; case 2: // 210 Calculated Acceleration (Cartesian) if (FourFSPECOctets[Bit_Ops.Bit15] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 210:T"; I062DataItems[ItemIDToIndex("210")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("210")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 210:F"; I062DataItems[ItemIDToIndex("210")].CurrentlyPresent = false; } // 060 Track Mode 3/A Code if (FourFSPECOctets[Bit_Ops.Bit14] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 060:T"; I062DataItems[ItemIDToIndex("060")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("060")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 060:F"; I062DataItems[ItemIDToIndex("060")].CurrentlyPresent = false; } // 245 Target Identification if (FourFSPECOctets[Bit_Ops.Bit13] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 245:T"; I062DataItems[ItemIDToIndex("245")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("245")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 245:F"; I062DataItems[ItemIDToIndex("245")].CurrentlyPresent = false; } // 380 Aircraft Derived Data if (FourFSPECOctets[Bit_Ops.Bit12] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 380:T"; I062DataItems[ItemIDToIndex("380")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("380")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 380:F"; I062DataItems[ItemIDToIndex("380")].CurrentlyPresent = false; } // 040 Track Number if (FourFSPECOctets[Bit_Ops.Bit11] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 040:T"; I062DataItems[ItemIDToIndex("040")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("040")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 040:F"; I062DataItems[ItemIDToIndex("040")].CurrentlyPresent = false; } // 080 Track Status if (FourFSPECOctets[Bit_Ops.Bit10] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 080:T"; I062DataItems[ItemIDToIndex("080")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("080")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 080:F"; I062DataItems[ItemIDToIndex("080")].CurrentlyPresent = false; } // 290 System Track Update Ages if (FourFSPECOctets[Bit_Ops.Bit9] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 290:T"; I062DataItems[ItemIDToIndex("290")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("290")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 290:F"; I062DataItems[ItemIDToIndex("290")].CurrentlyPresent = false; } break; case 3: // 200 Mode of Movement if (FourFSPECOctets[Bit_Ops.Bit23] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 200:T"; I062DataItems[ItemIDToIndex("200")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("200")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 200:F"; I062DataItems[ItemIDToIndex("200")].CurrentlyPresent = false; } // 295 Track Data Ages if (FourFSPECOctets[Bit_Ops.Bit22] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 295:T"; I062DataItems[ItemIDToIndex("295")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("295")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 295:F"; I062DataItems[ItemIDToIndex("295")].CurrentlyPresent = false; } // 136 Measured Flight Level if (FourFSPECOctets[Bit_Ops.Bit21] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 136:T"; I062DataItems[ItemIDToIndex("136")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("136")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 136:F"; I062DataItems[ItemIDToIndex("136")].CurrentlyPresent = false; } // 130 Calculated Track Geometric Altitude if (FourFSPECOctets[Bit_Ops.Bit20] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 130:T"; I062DataItems[ItemIDToIndex("130")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("130")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 130:F"; I062DataItems[ItemIDToIndex("130")].CurrentlyPresent = false; } // 135 Calculated Track Barometric Altitude if (FourFSPECOctets[Bit_Ops.Bit19] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 135:T"; I062DataItems[ItemIDToIndex("135")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("135")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 135:F"; I062DataItems[ItemIDToIndex("135")].CurrentlyPresent = false; } // 220 Calculated Rate Of Climb/Descent if (FourFSPECOctets[Bit_Ops.Bit18] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 220:T"; I062DataItems[ItemIDToIndex("220")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("220")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 220:F"; I062DataItems[ItemIDToIndex("220")].CurrentlyPresent = false; } // 390 Flight Plan Related Data if (FourFSPECOctets[Bit_Ops.Bit17] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 390:T"; I062DataItems[ItemIDToIndex("390")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("390")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 390:F"; I062DataItems[ItemIDToIndex("390")].CurrentlyPresent = false; } break; case 4: // 270 Target Size & Orientation if (FourFSPECOctets[Bit_Ops.Bit31] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 270:T"; I062DataItems[ItemIDToIndex("270")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("270")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 270:F"; I062DataItems[ItemIDToIndex("270")].CurrentlyPresent = false; } // 300 Vehicle Fleet Identification if (FourFSPECOctets[Bit_Ops.Bit30] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 300:T"; I062DataItems[ItemIDToIndex("300")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("300")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 300:F"; I062DataItems[ItemIDToIndex("300")].CurrentlyPresent = false; } // 110 Mode 5 Data reports & Extended Mode 1 Code if (FourFSPECOctets[Bit_Ops.Bit29] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 110:T"; I062DataItems[ItemIDToIndex("110")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("110")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 110:F"; I062DataItems[ItemIDToIndex("110")].CurrentlyPresent = false; } // 120 Track Mode 2 Code if (FourFSPECOctets[Bit_Ops.Bit28] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 120:T"; I062DataItems[ItemIDToIndex("120")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("120")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 120:F"; I062DataItems[ItemIDToIndex("120")].CurrentlyPresent = false; } // 510 Composed Track Number if (FourFSPECOctets[Bit_Ops.Bit27] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 510:T"; I062DataItems[ItemIDToIndex("510")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("510")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 510:F"; I062DataItems[ItemIDToIndex("510")].CurrentlyPresent = false; } // 500 Estimated Accuracies if (FourFSPECOctets[Bit_Ops.Bit26] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 500:T"; I062DataItems[ItemIDToIndex("500")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("500")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 500:F"; I062DataItems[ItemIDToIndex("500")].CurrentlyPresent = false; } // 340 Measured Information if (FourFSPECOctets[Bit_Ops.Bit25] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 340:T"; I062DataItems[ItemIDToIndex("340")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("340")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " 340:F"; I062DataItems[ItemIDToIndex("340")].CurrentlyPresent = false; } break; // These are Reserved Expansion and Special Purpose fileds. case 5: // RE Reserved Expansion Field if (TheFifthFSPECOctet[Bit_Ops.Bit2] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " REF:T"; I062DataItems[ItemIDToIndex("REF")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("REF")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " REF:F"; I062DataItems[ItemIDToIndex("REF")].CurrentlyPresent = false; } // SP Special Purpose Indicator if (TheFifthFSPECOctet[Bit_Ops.Bit1] == true) { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " SPI:T"; I062DataItems[ItemIDToIndex("SPI")].HasBeenPresent = true; I062DataItems[ItemIDToIndex("SPI")].CurrentlyPresent = true; } else { DataOut[DataOutIndex] = DataOut[DataOutIndex] + " SPI:F"; I062DataItems[ItemIDToIndex("SPI")].CurrentlyPresent = false; } break; // Handle errors default: DataOut[DataOutIndex] = DataOut[DataOutIndex] + " UKN:T"; break; } } DataOutIndex++; CAT62DecodeAndStore.Do(LocalSingleRecordBuffer); DataBufferIndexForThisExtraction = DataBufferIndexForThisExtraction + CurrentDataBufferOctalIndex; } // Return decoded data NumOfMessagesDecoded = DataOutIndex; return(DataOut); }