/// <summary>
/// Filtracja sygnału delta
/// </summary>
private void initialize_Sinc()
{
signal1 = new AnalogSignal(1, 100, 1000, 0.5).GenerateSincSignal(5);
courseGraph1 = new CourseGraph(10, 24, 220, 500, "Sygnał Sinc");
courseGraph1.Signal = signal1;
courseGraph1.Autoscale();
courseGraph1.DrawGraph();
spectrumGraph1 = new SpectrumGraph(520, 24, 220, 500, "Widmo Sinc");
spectrumGraph1.Signal = signal1;
spectrumGraph1.DFT();
spectrumGraph1.Autoscale();
spectrumGraph1.DrawGraph();
signal2 = new AnalogSignal(1, 100, 1000, 0.5).GenerateDelta();
courseGraph2 = new CourseGraph(10, 254, 220, 500, "Sygnał Delta");
courseGraph2.Signal = signal2;
courseGraph2.Autoscale();
courseGraph2.DrawGraph();
spectrumGraph2 = new SpectrumGraph(520, 254, 220, 500, "Widmo delta");
spectrumGraph2.Signal = signal2;
spectrumGraph2.DFT();
spectrumGraph2.Autoscale();
spectrumGraph2.DrawGraph();
signal3 = new AnalogSignal(1, 100, 1000, 0.5).Weave(signal2, signal1);
courseGraph3 = new CourseGraph(10, 484, 220, 500, "Przebieg odpowiedzi impulsowej");
courseGraph3.Signal = signal3;
courseGraph3.Autoscale();
courseGraph3.DrawGraph();
spectrumGraph3 = new SpectrumGraph(520, 484, 220, 500, "Widmo odpowiedzi impulsowej");
spectrumGraph3.Signal = signal3;
spectrumGraph3.DFT();
spectrumGraph3.Autoscale();
spectrumGraph3.DrawGraph();
}
/// <summary>
/// Filtracja szumu
/// </summary>
private void initialize_FilteringOfNoise()
{
signal1 = new AnalogSignal(1, 300, 1000, 0.5).GenerateSincSignal(19);
courseGraph1 = new CourseGraph(10, 24, 220, 500, "Sygnał Sinc");
courseGraph1.Signal = signal1;
courseGraph1.Autoscale();
courseGraph1.DrawGraph();
spectrumGraph1 = new SpectrumGraph(520, 24, 220, 500, "Widmo Sinc");
spectrumGraph1.Signal = signal1;
spectrumGraph1.DFT();
spectrumGraph1.Autoscale();
spectrumGraph1.DrawGraph();
signal2 = new AnalogSignal(1, 100, 1000, 0.5).GenerateNoise(0.5);
courseGraph2 = new CourseGraph(10, 254, 220, 500, "Sygnał Delta");
courseGraph2.Signal = signal2;
courseGraph2.Autoscale();
courseGraph2.DrawGraph();
spectrumGraph2 = new SpectrumGraph(520, 254, 220, 500, "Widmo delta");
spectrumGraph2.Signal = signal2;
spectrumGraph2.DFT();
spectrumGraph2.Autoscale();
spectrumGraph2.DrawGraph();
signal3 = new AnalogSignal(1, 100, 1000, 0.5).Weave(signal1, signal2);
courseGraph3 = new CourseGraph(10, 484, 220, 500, "Przebieg po filtracji");
courseGraph3.Signal = signal3;
courseGraph3.Autoscale();
courseGraph3.DrawGraph();
spectrumGraph3 = new SpectrumGraph(520, 484, 220, 500, "Widmo po filtracji");
spectrumGraph3.Signal = signal3;
spectrumGraph3.DFT();
spectrumGraph3.Autoscale();
spectrumGraph3.DrawGraph();
}
private void initialize_generateFilter_1()
{
signal1 = new AnalogSignal(1, 300, 1000, 0.5).GenerateFilter1();
courseGraph1 = new CourseGraph(10, 24, 220, 500, "Przebieg charakterystyki");
courseGraph1.Signal = signal1;
courseGraph1.Autoscale();
courseGraph1.DrawGraph();
spectrumGraph1 = new SpectrumGraph(520, 24, 220, 700, "Odpowiedź filtru");
spectrumGraph1.Signal = signal1;
spectrumGraph1.DFT();
spectrumGraph1.Autoscale();
spectrumGraph1.DrawGraph();
signal2 = new AnalogSignal(1, 100, 1000, 0.5).GenerateNoise(0.5);
courseGraph2 = new CourseGraph(10, 254, 220, 500, "Szum");
courseGraph2.Signal = signal2;
courseGraph2.Autoscale();
courseGraph2.DrawGraph();
spectrumGraph2 = new SpectrumGraph(520, 254, 220, 500, "Widmo szumu");
spectrumGraph2.Signal = signal2;
spectrumGraph2.DFT();
spectrumGraph2.Autoscale();
spectrumGraph2.DrawGraph();
signal3 = new AnalogSignal(1, 100, 1000, 0.5).Weave(signal1, signal2);
courseGraph3 = new CourseGraph(10, 484, 220, 500, "Przebieg po filtracji");
courseGraph3.Signal = signal3;
courseGraph3.Autoscale();
courseGraph3.DrawGraph();
spectrumGraph3 = new SpectrumGraph(520, 484, 220, 500, "Widmo po filtracji");
spectrumGraph3.Signal = signal3;
spectrumGraph3.DFT();
spectrumGraph3.Autoscale();
spectrumGraph3.DrawGraph();
}
private void editSignal(int item, double amplitude, double frequency, double samplingFrequency, double length, int accuracyOfApproximation)
{
graphPanel.Controls.Remove(signalGraph);
String label = "";
signal = new AnalogSignal(amplitude, frequency, samplingFrequency, length);
switch (item)
{
case 0:
label = "Sinusoida";
signal.GenerateSinusSignal();
break;
case 1:
label = "Piłokształtny";
signal.GenerateSawSignal(accuracyOfApproximation);
break;
case 2:
label = "Trójkątny";
signal.GenerateTriangleSignal(accuracyOfApproximation);
break;
case 3:
label = "Prostokątny";
signal.GenerateSquareSignal(accuracyOfApproximation);
break;
case 4:
label = "Szum";
signal.GenerateNoise(accuracyOfApproximation);
break;
}
signalGraph = new CourseGraph(3, 3, 150, 500, label);
signalGraph.Signal = signal;
signalGraph.Autoscale();
signalGraph.DrawGraph();
graphPanel.Controls.Add(signalGraph);
}
/// <summary>
/// Funkcja realuzująca demodulację sygnałów zmodulowanych amplitudowo i fazowo
/// </summary>
/// <param name="carrier">Sygnał nośny - kod</param>
/// <param name="timeOfBit">Czas trwania jednego bitu</param>
/// <param name="limit">Granica komparatora</param>
/// <param name="unipolar">Określa, czy iloczyn sygnałów jest jednobiegunowy</param>
/// <returns>Zwraca ciąg bitów zawartych w sygnale nośnym</returns>
public DigitalSignal demodulationASKandPSK(AnalogSignal carrier, double timeOfBit, long limit, bool unipolar)
{
int numberOfBit;
int lengthOfWord = 8;
long [] heuristic = new long[lengthOfWord];
analogSignal = new AnalogSignal(carrier.Amplitude, carrier.Frequency, carrier.SamplingFrequency, carrier.Length);
//Generowanie sygnału
analogSignal.GenerateSinusSignal();
//Pomnożenie sygnału nośnego przez informację
AnalogSignal multi = analogSignal * carrier;
string word = "";
for (int i = 0; i < carrier.LengthOfBuffer; i++)
{
numberOfBit = (int)(i / carrier.SamplingFrequency / timeOfBit);
heuristic[numberOfBit] += (long)multi.Course[i];
}
for (int i = 0; i < lengthOfWord; i++)
{
if (heuristic[i] > limit && unipolar) //jeżeli sygnał jest jednobiegunowy
{
word += "1";
}
else if (heuristic[i] < limit && !unipolar) // jeżeli sygnał jest dwubiegunowy
{
word += "1";
}
else
{
word += "0";
}
}
return(new DigitalSignal(word, carrier.SamplingFrequency, timeOfBit));
}
/// <summary>
/// Funkcja inicjalizujaca sygnaly i ich wykresy dla lab5 dla demodulacji ASK
/// </summary>
private void initialize_Lab5_ASK()
{
Demodulation demodul = new Demodulation();
string word = "10101011";
courseGraph1 = new CourseGraph(10, 24, 150, 500, "Nośna");
courseGraph2 = new CourseGraph(10, 184, 150, 500, word);
courseGraph3 = new CourseGraph(10, 344, 150, 500, "Kod ASK");
signal1 = new AnalogSignal(7, 32.5, 1000, 0.5); // nośna
digital = new DigitalSignal(word, 1000, 0.0625); //informacja
// s. nośny
signal1.GenerateSinusSignal();
// s. zmodulowany
AnalogSignal ASK = new AnalogSignal(signal1);
ASK.ASK(signal1, digital);
// Rysowanie przebiegów:
// Sygnał nośny
courseGraph1.Signal = signal1;
courseGraph1.Autoscale();
courseGraph1.DrawGraph();
//sygnal zmodulowany ASK
courseGraph2.Signal = ASK;
courseGraph2.Autoscale();
courseGraph2.DrawGraph();
//Kod cyfrowy
courseGraph3.Signal = demodul.demodulationASKandPSK(ASK, 0.0625, 200, true); // demodulacja
courseGraph3.Autoscale();
courseGraph3.DrawGraph();
}
/// <summary>
/// Funkcja inicjalizujaca sygnaly i ich wykresy dla lab5 dla demodulacji PSK
/// </summary>
private void initialize_Lab5_PSK()
{
Demodulation demodul = new Demodulation();
string word = "10101011";
courseGraph1 = new CourseGraph(10, 24, 150, 500, word);
courseGraph2 = new CourseGraph(10, 184, 150, 500, "Kod PSK");
courseGraph3 = new CourseGraph(10, 344, 150, 500, "Kod cyfrowy");
digital = new DigitalSignal(word, 1000, 0.0625); //informacja
// s. zmodulowany
AnalogSignal PSK = new AnalogSignal(10, 20, 1000, 0.5).GenerateSinusSignal();
PSK.PSK(digital);
// Rysowanie przebiegów:
// Sygnał nośny
courseGraph1.Signal = digital;
courseGraph1.Limit(5000);
courseGraph1.DrawGraph();
//sygnal zmodulowany ASK
courseGraph2.Signal = PSK;
courseGraph2.Limit(5000);
courseGraph2.DrawGraph();
//Kod cyfrowy
courseGraph3.Signal = demodul.demodulationASKandPSK(PSK, 0.0625, 200, false); //demodualcja
courseGraph3.Limit(5000);
courseGraph3.DrawGraph();
}
/// <summary>
/// Funkcja inicjalizujaca sygnaly i ich wykresy dla lab1 i lab2
/// </summary>
private void initialize_Lab1_Lab2()
{
// inicjalizacja obiektow klasy wykresow przebiegu sygnalu
courseGraph1 = new CourseGraph(10, 24, 150, 500, "Sygnał 1.");
courseGraph2 = new CourseGraph(10, 184, 150, 500, "Sygnał 2.");
courseGraph3 = new CourseGraph(10, 344, 150, 500, "Suma");
courseGraph4 = new CourseGraph(10, 504, 150, 500, "Iloczyn");
// inicjalizacja obiektow klasy wykresow widma
spectrumGraph1 = new SpectrumGraph(520, 24, 150, 500, "Sygnał 1.");
spectrumGraph2 = new SpectrumGraph(520, 184, 150, 500, "Sygnał 2.");
spectrumGraph3 = new SpectrumGraph(520, 344, 150, 500, "Suma");
spectrumGraph4 = new SpectrumGraph(520, 504, 150, 500, "Iloczyn");
// inicjalizacja obiektow klasy sygnalow
signal1 = new AnalogSignal(20, 100, 1000, 0.5);
signal2 = new AnalogSignal(50, 10, 1000, 0.5);
// Generowanie sygnalow na podstawie
// podanych w konstruktorze parametrow
signal1.GenerateSinusSignal();
signal2.GenerateSinusSignal();
// rysowanie wykresow sygnalu 1.
courseGraph1.Signal = signal1;
courseGraph1.Autoscale();
courseGraph1.DrawGraph();
spectrumGraph1.Signal = signal1;
spectrumGraph1.Autoscale();
spectrumGraph1.DFT();
spectrumGraph1.DrawGraph();
// rysowanie wykresow sygnalu 2.
courseGraph2.Signal = signal2;
courseGraph2.Autoscale();
courseGraph2.DrawGraph();
spectrumGraph2.Signal = signal2;
spectrumGraph2.Autoscale();
spectrumGraph2.DFT();
spectrumGraph2.DrawGraph();
// rysowanie wykresow sumy sygnalow
Signal sumOfSignals = signal1 + signal2;
courseGraph3.Signal = sumOfSignals;
courseGraph3.Autoscale();
courseGraph3.DrawGraph();
spectrumGraph3.Signal = sumOfSignals;
spectrumGraph3.Autoscale();
spectrumGraph3.DFT();
spectrumGraph3.DrawGraph();
// rysowanie wykresow iloczynu sygnalow
Signal productOfSignals = signal1 * signal2;
courseGraph4.Signal = productOfSignals;
courseGraph4.Autoscale();
courseGraph4.DrawGraph();
spectrumGraph4.Signal = productOfSignals;
spectrumGraph4.Autoscale();
spectrumGraph4.DFT();
spectrumGraph4.DrawGraph();
}
/// <summary>
/// Funkcja inicjalizujaca sygnaly i ich wykresy dla lab3
/// </summary>
private void initialize_Lab3()
{
// inicjalizacja obiektow klasy wykresow przebiegu sygnalu
courseGraph1 = new CourseGraph(10, 24, 150, 500, "Nośna");
courseGraph2 = new CourseGraph(10, 184, 150, 500, "Sygnał informacyjny");
courseGraph3 = new CourseGraph(10, 344, 150, 500, "AM");
courseGraph4 = new CourseGraph(10, 504, 150, 500, "PM");
// inicjalizacja obiektow klasy wykresow widma
spectrumGraph1 = new SpectrumGraph(520, 24, 150, 500, "Nośna");
spectrumGraph2 = new SpectrumGraph(520, 184, 150, 500, "Sygnał informacyjny");
spectrumGraph3 = new SpectrumGraph(520, 344, 150, 500, "AM");
spectrumGraph4 = new SpectrumGraph(520, 504, 150, 500, "PM");
// inicjalizacja obiektow klasy sygnalow
signal1 = new AnalogSignal(50, 100, 1000, 0.5); // nośna
signal2 = new AnalogSignal(50, 10, 1000, 0.5); // sygnał informacyjny
// Generowanie sygnalow na podstawie
// podanych w konstruktorze parametrow
signal1.GenerateSinusSignal();
signal2.GenerateSinusSignal();
// rysowanie wykresow sygnalu 1.
courseGraph1.Signal = signal1;
courseGraph1.DrawGraph();
spectrumGraph1.Signal = signal1;
spectrumGraph1.Limit(2);
spectrumGraph1.DrawGraph();
// rysowanie wykresow sygnalu 2.
courseGraph2.Signal = signal2;
courseGraph2.DrawGraph();
spectrumGraph2.Signal = signal2;
spectrumGraph2.Limit(2);
spectrumGraph2.DrawGraph();
// rysowanie wykresow AM
AnalogSignal AM = new AnalogSignal();
AM.AmplitudeModulation(signal1, signal2, 0.01);
courseGraph3.Signal = AM;
courseGraph3.Limit(1500);
courseGraph3.DrawGraph();
spectrumGraph3.Signal = AM;
spectrumGraph3.Limit(15);
spectrumGraph3.DrawGraph();
//rysowanie wykresow PW
AnalogSignal PM = new AnalogSignal();
PM.PhaseModulation(signal1, signal2, 0.5);
courseGraph4.Signal = PM;
courseGraph4.DrawGraph();
spectrumGraph4.Signal = PM;
spectrumGraph4.Limit(2);
spectrumGraph4.DrawGraph();
}
/// <summary>
/// Funkcja inicjalizująca obiekty sygnałów do wybranego labolatorium
/// </summary>
private void initialize(int lab)
{
Controls.Remove(courseGraph1);
Controls.Remove(courseGraph2);
Controls.Remove(courseGraph3);
Controls.Remove(courseGraph4);
Controls.Remove(spectrumGraph1);
Controls.Remove(spectrumGraph2);
Controls.Remove(spectrumGraph3);
Controls.Remove(spectrumGraph4);
courseGraph1 = null;
courseGraph2 = null;
courseGraph3 = null;
courseGraph4 = null;
spectrumGraph1 = null;
spectrumGraph2 = null;
spectrumGraph3 = null;
spectrumGraph4 = null;
signal1 = null;
signal2 = null;
signal3 = null;
digital = null;
ft = new FourierTransform();
this.Controls.Clear();
switch (lab)
{
case 1:
initialize_Lab1_Lab2();
break;
case 2:
initialize_Lab3();
break;
case 3:
initialize_Lab4_ASK();
break;
case 4:
initialize_Lab4_FSK_PSK();
break;
case 5:
initialize_Lab5_ASK();
break;
case 6:
initialize_Lab5_PSK();
break;
case 7:
initialize_Lab5_FSK();
break;
case 8:
initialize_SquareTriangleSaw();
break;
case 9:
initialize_MSE();
break;
case 10:
initialize_MSEPlot();
break;
case 11:
initialize_Correlation_1();
break;
case 12:
initialize_Correlation_2();
break;
case 13:
initialize_IDFT();
break;
case 14:
initialize_Sinc();
break;
case 15:
initialize_FilteringOfNoise();
break;
case 16:
initialize_generateFilter_1();
break;
case 17:
initialize_generateFilter_2();
break;
case 18:
initialize_generateFilter_3();
break;
case 19:
initialize_CDMA();
break;
default:
initialize_Lab1_Lab2();
break;
}
Controls.Add(courseGraph1);
Controls.Add(courseGraph2);
Controls.Add(courseGraph3);
Controls.Add(courseGraph4);
Controls.Add(spectrumGraph1);
Controls.Add(spectrumGraph2);
Controls.Add(spectrumGraph3);
Controls.Add(spectrumGraph4);
InitializeComponent();
}
