public static void Run(float f = 10, bool[] data = null)
{
//
// Data
//
if(data==null) data = new bool[]{ false, false, false, true };
//
// Baseband and carrier generation
//
BinaryData b = new BinaryData(data, 30 * f); // baseband
//
//mod
//
Signal ask_mod = ASK.Modulate(b, f, 1);
Signal psk_mod = PSK.BPSK_Modulate(b, f);
Signal fsk_mod = FSK.BFSK_Modulate(b, f, 2 * f);
//
//demod
//
BinaryData ask_d = (BinaryData)ASK.DeModulate(ask_mod, f);
BinaryData psk_d = (BinaryData)PSK.BPSK_Demodulate(psk_mod, f);
BinaryData fsk_d = (BinaryData)FSK.BFSK_DeModulate(fsk_mod, f, 2 * f);
//
// display
//
Debug.Print("ASK : "); ask_d.Display();
Debug.Print("PSK : "); psk_d.Display();
Debug.Print("FSK : "); fsk_d.Display();
}
public static Signal NRZ_Polar(BinaryData data, float high_volt, float low_volt)
{
for (int i = 0 ; i < data.Samples.Length ; i++)
{
data.Samples[i] = (data.Samples[i] > 0) ? high_volt : low_volt;
}
return data;
}
public static Signal BFSK_Modulate(BinaryData baseband, float f1, float f2)
{
Signal modFSK = new Signal();
float tmp = 1 / baseband.SamplingRate; //(30 * Math.Max(f1,f2));
float t = 0;
BaseSignalGenerator s = new BaseSignalGenerator( SignalType.Sine);
modFSK.Samples = new double[baseband.Samples.Length];
modFSK.SamplingRate = baseband.SamplingRate;
for (int i = 0 ; i < baseband.Samples.Length ; i++)
{
if (baseband.Samples[i] == 1)
{
s.Frequency = f1;
}
else
{
s.Frequency = f2;
}
modFSK.Samples[i] = s.GetValue(t);
t += tmp;
}
return modFSK;
}
