Re: Welch and MEM power spectrum estimation (Signal processing) functions
David Bateman <[email protected]> Thu, 15 Jun 2006 18:43:00 +0200
| Newsgroups | gmane.comp.gnu.octave.sources |
|---|---|
| Organization | Motorola CRM |
| Message-ID | <[email protected]> |
Peter Vernon Lanspeary wrote: >Here are some (attached) functions for estimating power spectra of vector data. > >1) welch_psd.m -- (Welch 1967) averaged-periodogram method of spectral > estimation: similar to Matlab's pwelch > >2) burg_filter.m -- constructs autoregressive generating filter of the data > by the Burg (1968) lattice-filter algorithm > >3) mem_psd.m -- maximum entropy method of spectral estimation (Burg 1968 > et seq); uses filter coefficients from burg_filter.m > mem_psd.m and burg_filter.m perform a similar function to > Matlab's pburg > >These have been slightly altered since testing. Please inform me of bugs. > >Thanks >Peter Lanspeary > > Can you please compare your implementation of the pwelch to the octave-forge version and to Matlab 2006a for compatiability? What would it take to create a fully Matlab compatiable pburg function? Once that is done these should be included in the signal processing toolbox of octave-forge... Regards David -- David Bateman [email protected] Motorola Labs - Paris +33 1 69 35 48 04 (Ph) Parc Les Algorithmes, Commune de St Aubin +33 6 72 01 06 33 (Mob) 91193 Gif-Sur-Yvette FRANCE +33 1 69 35 77 01 (Fax) The information contained in this communication has been classified as: [x] General Business Information [ ] Motorola Internal Use Only [ ] Motorola Confidential Proprietary