/// <summary>
/// ハイパスフィルタを作成
/// </summary>
/// <param name="n">タップ数＝2n+1</param>
/// <param name="w">遮断周波数</param>
/// <param name="window">窓関数</param>
public HighPassFir(int n, double w, WindowFunction window) : base(n)
{
FirCommon.CalcLinearBPFCoefficient(FirCommon.FirFilterType.HPF, this.coef, Math.PI - w, 0, window);
}
/// <summary>
/// バンドパスフィルタを作成
/// </summary>
/// <param name="n">タップ数＝2n+1</param>
/// <param name="wl">下限周波数</param>
/// <param name="wh">上限周波数</param>
/// <param name="window">窓関数</param>
public BandPassFir(int n, double wl, double wh, WindowFunction window) : base(n)
{
FirCommon.CalcLinearBPFCoefficient(FirCommon.FirFilterType.BPF, this.coef, (wl - wh) / 2, (wl + wh) / 2, window);
}
/// <summary>
/// ローパスフィルタを作成
/// </summary>
/// <param name="n">タップ数＝2n+1</param>
/// <param name="w">遮断周波数</param>
/// <param name="window">窓関数</param>
public LowPassFir(int n, double w, WindowFunction window) : base(n)
{
FirCommon.CalcLinearBPFCoefficient(FirCommon.FirFilterType.LPF, this.coef, w, 0, window);
}