sdynpy.signal_processing.sdynpy_srs.lanl_rms_db_error

• Module: sdynpy.signal_processing.sdynpy_srs

• Source: GitHub

Signature¶

def sdynpy.signal_processing.sdynpy_srs.lanl_rms_db_error(db_error: numpy.ndarray, frequency: numpy.ndarray, octave_resolution: float) -> Dict[str, numpy.ndarray | float]

Compute LANL-style RMS dB error over octave-spaced frequency lines.

Parameters¶

• db_error : ndarray dB error values. May be one-dimensional with shape (n_freq,) or two-dimensional with shape (n_freq, n_series).

• frequency : ndarray Frequency vector with shape (n_freq,).

• octave_resolution : float Number of points per octave.

Returns¶

• dict

• Dictionary containing:

• - "rms" : float

• Average RMS dB error across series.

• - "std" : float

• Average standard deviation of dB error across series.

• - "avg" : ndarray

• Mean dB error across series at each frequency.

Raises¶

• ValueError

• If the first dimension of db_error does not match the length of

• frequency.

Notes¶

This follows the octave-band weighting used in the MATLAB lanl_rmsdberror routine.