pharminv 0.2.2

Python interface to harminv

This is a python interface to harminv, a library for performing harmonic inversion on a signal.

Requirements:

• BLAS & LAPACK

• libharminv-dev

• numpy

Installation:

Make sure that you have the requirements above, then

pip install pharminv

Usage:

harminv.invert contains the basic functionality of the harminv tool. This function should remain stable but the API elsewhere is subject to change.

import numpy as np
import harminv

time = np.linspace(0, 1, 1000)

signal = np.cos(2 * np.pi * time * 10) + np.cos(2 * np.pi * time * 20)

inversion = harminv.invert(signal, fmin=1, fmax=100)

inversion.freq        # mode frequencies
inversion.decay       # decay rates
inversion.Q           # Q factor
inversion.amplitudes  # absolute amplitudes
inversion.phase       # phase shift

License:

harminv was written by Steven G. Johnson and is licensed under the GNU GPLv2+, copyright 2005 by the Massachusetts Institute of Technology.

This python interface to harminv is licensed under the standard BSD 3-clause license.