EXPLOITING MULTIPATH FOR BLIND SOURCE SEPARATION WITH SENSOR ARRAYS

Signal Separation

Přednášející: Giuseppe Fabrizio, Autoři: Giuseppe Fabrizio, Defence Science and Technology Organisation, Australia; Alfonso Farina, Selex Sistemi Integrati, Italy

The problem of blind source separation by spatial processing is considered for convolutive mixtures of narrowband sources received by a sensor array. Multipath propagation is due to time-varying doubly-spread finite impulse response channels where the signal modes are Doppler shifted and arise from diffuse scattering rather than specular reflection. This paper introduces a new blind spatial filtering technique, referred to as the Generalized Estimation of Multipath Signals (GEMS) algorithm, which exploits multipath as the basis for signal separation under relatively mild assumptions regarding the signal spatial signatures and source waveform properties. The performance of GEMS is compared with a benchmark signal-copy procedure using real data acquired by an experimental high frequency (HF) antenna array system.

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http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5947001

Informace o přednášce

Nahráno:	2011-05-27 11:10 - 11:30, Club E
Přidáno:	20. 6. 2011 01:01
Počet zhlédnutí:	29
Rozlišení videa:	1024x576 px, 512x288 px
Délka videa:	0:28:09
Audio stopa:	MP3 [9.56 MB], 0:28:09