Estimation of the number of signal sources in compound signals using activity index variance
This work addresses the problem of estimating the number of signal sources in convolutive signal mixtures. Our approach is based on the blind source separation. The first step builds a measure of the global activity of all active sources. This measure is known as activity index, and is based on the...
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| Format: | Book Chapter |
| Jezik: | English |
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| Sorodne knjige/članki: | Vsebovano v:
2009 IEEE 13th DSP Workshop & 5th SPE Workshop, January 4-7, 2009, Marco Island, Florida, U.S.A. |
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| LEADER | 01945naa a2200229 ib4500 | ||
|---|---|---|---|
| 001 | 12931094 | ||
| 003 | SI-MaCOB | ||
| 005 | 20090113000000.0 | ||
| 008 | 090113s2009 xxu|||||s|||||||| ||eng c | ||
| 040 | |a KTFMB |b slv |c SI-MaIIZ |e ppiak | ||
| 041 | 0 | |a eng |b eng | |
| 080 | |a 621.39 | ||
| 100 | 1 | |a Istenič, Rok. |4 aut | |
| 245 | 0 | 0 | |a Estimation of the number of signal sources in compound signals using activity index variance |h [Elektronski vir] / |c Rok Istenic and Damjan Zazula. |
| 300 | |a Str. 178-181. | ||
| 504 | |a Bibliografija: str. 181. | ||
| 504 | |a Abstract. | ||
| 520 | |a This work addresses the problem of estimating the number of signal sources in convolutive signal mixtures. Our approach is based on the blind source separation. The first step builds a measure of the global activity of all active sources. This measure is known as activity index, and is based on the inverse of correlation matrix of the observed signals. The next step analyses the activity index variance. Our experiments have shown that the number of sources can be estimated from the activity index variance. A set of multi-channel synthetic signal mixtures with different number of active sources was generated for the evaluation. The preliminary results using synthetic signals show that our approach is robust and effectively estimates the number of signal sources. | ||
| 653 | 0 | |a signali |a kompleksni signali |a digitalno procesiranje signalov |a obdelava signalov | |
| 653 | 0 | |a digital signal processing |a signals |a compound signals |a signal sources estimation |a number of signal sources |a estimation of the number of signal sources |a convolutive mixtures |a activity index |a array sensors | |
| 700 | 1 | 2 | |a Zazula, Damjan. |4 aut |
| 773 | 0 | |a IEEE Digital Signal Processing Workshop (13 : 2009 : Marco Island, Florida) |t 2009 IEEE 13th DSP Workshop & 5th SPE Workshop, January 4-7, 2009, Marco Island, Florida, U.S.A. |d [S. l.] : IEEE, cop. 2009 |w 12930582 |z 9781424436774 |g Str. 178-181 | |