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| Harminv |
| Computer languages | C + |
|---|---|
| Documentation note | User manpage available in HTML format from http://ab-initio.mit.edu/harminv/harminv-man.html |
| Full description | Harminv is a program (and accompanying lib … 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. n method" (FDM) of Mandelshtam and Taylor. |
| Homepage URL | http://ab-initio.mit.edu/harminv/ + |
| Interface | command-line + , library + |
| Is GNU | false + |
| Keywords | fft + , fdm + , spectrum + , filter diagonalization + , filter diagonalization method + , harmonic inversion + , frequencies + , decay constants + , amplitudes + , sinusoids + , FFT peak + |
| Last review by | Janet Casey + |
| Last review date | 7 January 2008 + |
| License | GPLv2orlater + |
| License verified by | Janet Casey + |
| License verified date | 18 May 2004 + |
| Name | Harminv + |
| Prerequisite description | LAPACK + , BLAS + |
| Prerequisite kind | Required to use + |
| Real name | Steven G. Johnson + |
| Resource URL | mailto:stevenj@alum.mit.edu + |
| Resource audience | Bug Tracking + , Developer + , Support + |
| Resource kind | E-mail + |
| Revisionid | 7,271 + |
| Revisiontimestamp | 12 April 2011 15:38:02 + |
| Revisionuser | WikiSysop + |
| Role | Maintainer + |
| Short description | Extracts frequencies and decay rates from a time series + |
| Submitted by | Database conversion + |
| Submitted date | 1 April 2011 + |
| User level | none + |
| Version comment | 1.2.1 stable released 2004-05-20 |
| Version date | 20 May 2004 + |
| Version download | http://ab-initio.mit.edu/harminv/harminv-1.2.1.tar.gz + |
| Version identifier | 1.2.1 + |
| Version status | stable + |
| Modification dateThis property is a special property in this wiki. | 25 May 2012 03:05:56 + |
| Page has default formThis property is a special property in this wiki. | Entry + |
| EmailThis property is a special property in this wiki. | stevenj@alum.mit.edu + |
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| Harminv#3 + | License of |
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