protected internal override IOnlineFilter CreateBandStop(FilterDesignSettings settings, double lowFrequency, double highFrequency)
{
return Create(Design(FilterKind.BandStop, settings.Order,
CalculateRipple(settings),
settings.NormalizeFrequency(lowFrequency),
settings.NormalizeFrequency(highFrequency)));
}
protected internal override IOnlineFilter CreateNotch(FilterDesignSettings settings, double frequency)
{
const double notchHalfWidth = 0.5; // Hz
return Create(Design(FilterKind.BandStop, settings.Order,
CalculateRipple(settings),
settings.NormalizeFrequency(frequency - notchHalfWidth),
settings.NormalizeFrequency(frequency + notchHalfWidth)));
}
protected internal override IOnlineFilter CreateHighPass(FilterDesignSettings settings, double frequency)
{
return Create(Design(FilterKind.HighPass, settings.Order,
CalculateRipple(settings),
settings.NormalizeFrequency(frequency)));
}