public Sinusoidal(float frequency, float phase = 0, float SampleRate = -1, float amplitude = 1, int length = -1,
bool useParallelization = true)
{
if (SampleRate == -1)
{
SampleRate = 30 * frequency;
}
if (length == -1)
{
length = (int)SampleRate;
}
this.SamplingRate = SampleRate;
p.Amplitude = amplitude;
p.Frequency = frequency;
this.Frequency = frequency;
this.Amplitude = amplitude;
this.Phase = phase;
p.Phase = phase;
this._increment = 1.0f / SampleRate;
this.Samples = new double[length];
if (length > 5000 && useParallelization)
{
System.Threading.Tasks.Parallel.For(0, length, _calc);
}
else
{
float t = 0;
for (int i = 0; i < length; i++)
{
this.Samples[i] = p.GetValue(t);
t = i * _increment;
}
}
}
public SignalGenerator(SignalType Type, float frequency, float phase = 0,
float SampleRate = -1, float amplitude = 1, int length = -1)
{
if (SampleRate == -1)
{
SampleRate = 20 * frequency;
}
if (length == -1)
{
length = (int)SampleRate;
}
BaseSignalGenerator bs = new BaseSignalGenerator(Type);
this.SamplingRate = SampleRate;
bs.Amplitude = amplitude;
bs.Frequency = frequency;
bs.Phase = phase;
Samples = new double[length];
float t = 0;
float tmp = 1 / SampleRate;
for (int i = 0; i < length; i++)
{
Samples[i] = bs.GetValue(t);
t += tmp;
}
this.Frequency = frequency;
this.Amplitude = amplitude;
this.Phase = phase;
}
public Square(float frequency, float phase = 0, float SampleRate = - 1, float amplitude = 1, int length = -1)
{
if (SampleRate == -1) SampleRate = 20 * frequency;
if (length == -1) length = (int)SampleRate;
this.SamplingRate = SampleRate;
BaseSignalGenerator s = new BaseSignalGenerator(SignalType.Square);
Samples = new double[length];
s.Frequency = frequency;
s.Amplitude = amplitude;
s.Phase = phase;
float t = 0;
float tmp = 1 / SampleRate;
for (int i = 0 ; i < length ; i++)
{
Samples[i] = s.GetValue(t);
t += tmp;
}
}
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;
}