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Harminv

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Harminv

http://ab-initio.mit.edu/harminv/
Harminv is a program (and accompanying library) to solve the problem of harmonic inversion. Given a discrete-time, finite-length signal that consists of a sum of finitely-many sinusoids (possibly exponentially decaying) in a given bandwidth, it determines the frequencies, decay constants, amplitudes, and phases of those sinusoids. Harminv can, in principle, provide much better accuracy than straightforwardly extracting FFT peaks because it assumes a specific form for the signal. (Fourier transforms, in contrast, attempt to represent *any* data as a sum of sinusoidal components.) It is also often more robust than directly least-squares fitting the data (which can have problematic convergence). Harminv employs the "filter diagonalization method" (FDM) of Mandelshtam and Taylor.

Documentation

User manpage available in HTML format from http://ab-initio.mit.edu/harminv/harminv-man.html


Download

Download version 1.2.1 (stable)
released on 20 May 2004

Categories




Licensing

LicenseVerified byVerified onNotes
GPLv2orlaterJanet Casey18 May 2004



Leaders and contributors

Contact(s)Role
Steven G. Johnson Maintainer


Resources and communication

Audience Resource type URI
Bug Tracking,Developer,Support E-mail mailto:stevenj@alum.mit.edu


Software prerequisites

Kind Description
Required to use LAPACK
Required to use BLAS

This entry (in part or in whole) was last reviewed on 7 January 2008.



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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.


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