tools_fri_doa_plane.py 文件源码

python
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项目:FRIDA 作者: LCAV 项目源码 文件源码
def Tmtx_ri(b_ri, K, D, L):
    """
    build convolution matrix associated with b_ri
    :param b_ri: a real-valued vector
    :param K: number of Diracs
    :param D1: expansion matrix for the real-part
    :param D2: expansion matrix for the imaginary-part
    :return:
    """
    b_ri = np.dot(D, b_ri)
    b_r = b_ri[:L]
    b_i = b_ri[L:]
    Tb_r = linalg.toeplitz(b_r[K:], b_r[K::-1])
    Tb_i = linalg.toeplitz(b_i[K:], b_i[K::-1])
    return np.vstack((np.hstack((Tb_r, -Tb_i)), np.hstack((Tb_i, Tb_r))))
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