Example #1
0
        /// <summary>
        /// Now uses a Mutex object around all the processing, so that updates of
        /// properties or fields do NOT occur while a block is being processed.
        /// (George Byrkit, 4 January 2012)
        /// </summary>
        /// <param name="inbuffer">input buffer, a complex (CPX) array</param>
        /// <param name="outbuffer">output buffer, a complex (CPX) array</param>
        unsafe public void DoDSPProcess(ref CPX[] inbuffer, ref CPX[] outbuffer)
        {
            try
            {
                ReceiverMutex.WaitOne();

                rxbuffer.Fill(ref inbuffer);

                #region Do Noiseblankers

                if (block_noise_blanker.BlockNBSwitchOn)
                {
                    block_noise_blanker.Process();
                }

                if (ave_noise_blanker.AveNBSwitchOn)
                {
                    ave_noise_blanker.Process();
                }

                #endregion

                #region Local Oscillator

                local_osc.Process();

                #endregion

                #region Power Spectrum before filter

                power_spectrum.Process();   //djm uncommented

                #endregion

                #region Filter

                filter.Process();

                #endregion

                #region Metering after filter

                meter.Process();

                #endregion

                #region Do AGC

#if false
                // find max real and imaginary components for warren and log them (using OutputDebugString)
                float maxReal      = 0.0F;
                float maxImaginary = 0.0F;
                float temp;
                for (int i = 0; i < rxbuffer.State.DSPBlockSize; ++i)
                {
                    temp = Math.Abs(rxbuffer.cpx[i].real);
                    if (temp > maxReal)
                    {
                        maxReal = temp;
                    }
                    temp = Math.Abs(rxbuffer.cpx[i].imag);
                    if (temp > maxImaginary)
                    {
                        maxImaginary = temp;
                    }
                }
                string logMsg = String.Format("AGC Buffer max real = {0}, max imaginary = {1}\n", maxReal, maxImaginary);
                OutputDebugString(logMsg);
                //Console.Write(logMsg);
#endif

                agc.Process();

                #endregion

                #region Squelch

                squelch.Process();

                #endregion

                #region Do Demod

                pll.Process();

                #endregion

                if (noise_filter.NoiseFilterSwitchOn)
                {
                    noise_filter.Process();
                }
                if (interference_filter.InterferenceFilterSwitchOn)
                {
                    interference_filter.Process();
                }

                #region Do Output

                output_mode.Process();

                #endregion

                outbuffer = (CPX[])rxbuffer.cpx.Clone();
            }
            finally
            {
                ReceiverMutex.ReleaseMutex();
            }
        }
Example #2
0
        unsafe public void DoDSPProcess(ref CPX[] inbuffer, ref CPX[] outbuffer)
        {
            rxbuffer.Fill(ref inbuffer);

            #region Do Noiseblankers

            if (block_noise_blanker.BlockNBSwitchOn)
            {
                block_noise_blanker.Process();
            }

            if (ave_noise_blanker.AveNBSwitchOn)
            {
                ave_noise_blanker.Process();
            }

            #endregion

            #region Local Oscillator

            local_osc.Process();

            #endregion

            #region Power Spectrum before filter

            power_spectrum.Process();               //djm uncommented

            #endregion

            #region Filter

            filter.Process();

            #endregion

            #region Metering after filter

            meter.Process();

            #endregion

            #region Do AGC

            agc.Process();

            #endregion

            #region Squelch

            squelch.Process();

            #endregion

            #region Do Demod

            pll.Process();

            #endregion

            if (noise_filter.NoiseFilterSwitchOn)
            {
                noise_filter.Process();
            }
            if (interference_filter.InterferenceFilterSwitchOn)
            {
                interference_filter.Process();
            }

            #region Do Output

            output_mode.Process();

            #endregion

            outbuffer = (CPX[])rxbuffer.cpx.Clone();
        }