FFTWindow FFT窗

Enumeration

Spectrum analysis windowing types

频谱分析窗口类型。

Use this to reduce leakage of signals across frequency bands

使用这个降低整个频带的信号泄漏。

Values值

• Rectangular
  w[n] = 1.0
• Triangle
  w[n] = TRI(2n/N)
• Hamming
  w[n] = 0.54 - (0.46 * COS(n/N) )
• Hanning
  w[n] = 0.5 * (1.0 - COS(n/N) )
• Blackman
  w[n] = 0.42 - (0.5 * COS(n/N) ) + (0.08 * COS(2.0 * n/N) )
• BlackmanHarris
  w[n] = 0.35875 - (0.48829 * COS(1.0 * n/N)) + (0.14128 * COS(2.0 * n/N)) - (0.01168 * COS(3.0 * n/N))