Broad-band, beam-space, signal-subspace source localization
- 6 January 2003
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
A general reconfigurable real-time preprocessing structure is proposed and discussed for broadband signal-subspace spatial-spectral estimators. This reduced-dimension beam-space (RDBS) focusing preprocessor focuses broadband sources and effectively reduces the observation dimension before a source localization computation. The preprocessing structure is considered for use in estimating the locations of broadband sources from array data using both H. Wang and M. Kaveh's (1985) coherent-signal-subspace method and K.M. Buckley and L.J. Griffiths' (1986) broadband signal subspace spatial spectrum (BASS-ALE) estimation technique. An example of RDBS used with BASS-ALE to simulate a linear equispaced broadband array of 16 omnidirectional elements is included.Keywords
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