gen.py 文件源码

def radial_filter_fullspec(max_order, NFFT, fs, array_configuration, amp_maxdB=40):
    """Generate NFFT/2 + 1 modal radial filter of orders 0:max_order for frequencies 0:fs/2, wraps radial_filter()

    Parameters
    ----------
    max_order : int
       Maximum order
    NFFT : int
       Order of FFT (number of bins), should be a power of 2.
    fs : int
       Sampling frequency
    array_configuration : ArrayConfiguration
       List/Tuple/ArrayConfiguration, see io.ArrayConfiguration
    amp_maxdB : int, optional
       Maximum modal amplification limit in dB [Default: 40]

    Returns
    -------
    dn : array_like
       Vector of modal frequency domain filter of shape [max_order + 1 x NFFT / 2 + 1]
    """

    freqs = _np.linspace(0, fs / 2, NFFT / 2 + 1)
    orders = _np.r_[0:max_order + 1]
    return radial_filter(orders, freqs, array_configuration, amp_maxdB=amp_maxdB)