boxcar(M, sym=True)
Also known as a rectangular window or Dirichlet window, this is equivalent to no window at all.
Number of points in the output window. If zero or less, an empty array is returned.
Whether the window is symmetric. (Has no effect for boxcar.)
The window, with the maximum value normalized to 1.
Return a boxcar or rectangular window.
Plot the window and its frequency response:
>>> from scipy import signal
... from scipy.fft import fft, fftshift
... import matplotlib.pyplot as plt
>>> window = signal.windows.boxcar(51)
... plt.plot(window)
... plt.title("Boxcar window")
... plt.ylabel("Amplitude")
... plt.xlabel("Sample")
>>> plt.figure()See :
... A = fft(window, 2048) / (len(window)/2.0)
... freq = np.linspace(-0.5, 0.5, len(A))
... response = 20 * np.log10(np.abs(fftshift(A / abs(A).max())))
... plt.plot(freq, response)
... plt.axis([-0.5, 0.5, -120, 0])
... plt.title("Frequency response of the boxcar window")
... plt.ylabel("Normalized magnitude [dB]")
... plt.xlabel("Normalized frequency [cycles per sample]")
The following pages refer to to this document either explicitly or contain code examples using this.
scipy.signal._spectral_py.check_NOLA
scipy.signal.boxcar
scipy.signal._spectral_py.check_COLA
scipy.signal.windows._windows.boxcar
scipy.signal.windows._windows.get_window
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