sdynpy.signal_processing.sdynpy_frf_inverse.pinv_by_truncation

• Module: sdynpy.signal_processing.sdynpy_frf_inverse

• Source: GitHub

Signature¶

def sdynpy.signal_processing.sdynpy_frf_inverse.pinv_by_truncation(frf_matrix, num_retained_values)

Computes the pseudo-inverse of an FRF matrix where a fixed number of singular values are retained for the inverse

Parameters¶

• frf_matrix : NDArray Transfer function as an np.ndarray, should be organized such that the frequency is the first axis, the responses are the second axis, and the references are the third axis

• num_retained_values : float or np.ndarray, optional Number of singular values to retain in the pseudo-inverse when the truncation method is chosen. A vector of can be provided so the number of retained values can change as a function of frequency. The vector must match the length of the abscissa in this case.

Returns¶

• np.ndarray

• Inverse of the supplied FRF matrix

Raises¶

• Exception

• If a number of retained values isn’t supplied

• Warning

• if the number of retained values is greater than the actual number of singular

• values