unsafe public PowerSpectrum(int fft_size)
{
this.mode = PowerSpectrumMode.OFF;
this.position = PowerSpectrumPosition.PREFILTER;
this.fft_size = fft_size;
this.results_size = fft_size;
this.window = new float[fft_size / 2];
this.ps_results = new float[fft_size]; //don't overrun results buffer
this.scope_results = new float[fft_size];
this.phase_results = new float[fft_size * 2];
this.fft = new FFT(fft_size);
this.filt_design = new FilterDesigner();
fixed(float *ptr_window = &window[0])
{
filt_design.makewindow(WindowType.BLACKMANHARRIS_WINDOW, fft_size / 2, ptr_window);
}
}
unsafe public void DoPowerSpectrum(float *real, float *imag, PowerSpectrumPosition positon)
{
if (mode == PowerSpectrumMode.OFF)
{
return;
}
switch (positon)
{
case PowerSpectrumPosition.INITIAL:
switch (mode)
{
case PowerSpectrumMode.PHASE2:
this.PowerSpectrumPhase2(real, imag);
break;
default:
break;
}
break;
case PowerSpectrumPosition.PREFILTER:
switch (mode)
{
case PowerSpectrumMode.PANADAPTER:
case PowerSpectrumMode.SPECMODE:
this.PowerSpectrumSignal(real, imag);
break;
default:
break;
}
break;
case PowerSpectrumPosition.POSTFILTER:
switch (mode)
{
case PowerSpectrumMode.HISTOGRAM:
case PowerSpectrumMode.WATERFALL:
case PowerSpectrumMode.SPECTRUM:
this.PowerSpectrumSignal(real, imag);
break;
case PowerSpectrumMode.SCOPE:
this.PowerSpectrumScope(real);
break;
default:
break;
}
break;
case PowerSpectrumPosition.POSTAGC:
switch (mode)
{
case PowerSpectrumMode.PHASE:
this.PowerSpectrumPhase(real, imag);
break;
default:
break;
}
break;
case PowerSpectrumPosition.FINAL:
break;
default:
break;
}
}
