openfermion.linalg.fit_known_frequencies

Fits a set of known exponential components to a dataset

Main aliases

openfermion.linalg.fit_known_frequencies(
    signal: numpy.ndarray, times: numpy.ndarray, frequencies: numpy.ndarray
) -> numpy.ndarray

Decomposes a function g(t) as g(t)=sum_jA_jexp(iw_jt), where the frequencies w_j are already known. Namely, makes a least-squares fit.

Arguments
signal {numpy.ndarray} -- the signal g(t) to be fit times {numpy.ndarray} -- t values of the signal frequencies {numpy.ndarray} -- known frequencies w_j

Returns
amplitudes {numpy.ndarray} -- the found amplitudes A_j

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Last updated 2024-04-26 UTC.

Arguments