Reduced-Dimension Beam-Space Broad-Band Source Localization: Preprocessor Design

Kevin M. Buckley; Xiao Liang Xu

doi:10.1117/12.948520

23 February 1988 Reduced-Dimension Beam-Space Broad-Band Source Localization: Preprocessor Design

Kevin M. Buckley, Xiao Liang Xu

Proceedings Volume 0975, Advanced Algorithms and Architectures for Signal Processing III; (1988) https://doi.org/10.1117/12.948520
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

Data from a set of conventional beamformers, each steered to a point in location (and frequency), are analyzed in beam-space processing. By selecting a location sector of interest, and by using only those beamformers which are steered within this sector, processing is in a Reduced-Dimension Beam-Space (RDBS). For spatial-spectrum estimation, advantages of processing in a RDBS rather than in element-space include; reduction in data and therefore computation required for spatial-spectral analysis, reduction in resolution thresholds, and attenuation of out-of-sector sources through spatial filtering. A beam-space preprocessor structure provides the element-space to RDBS transfor-mation. For broad-band source processing, its objectives are data reduction, spatial filtering and broad-band source focusing. In this paper we investigate beam-space preprocessor design.

Citation Download Citation

Kevin M. Buckley and Xiao Liang Xu "Reduced-Dimension Beam-Space Broad-Band Source Localization: Preprocessor Design", Proc. SPIE 0975, Advanced Algorithms and Architectures for Signal Processing III, (23 February 1988); https://doi.org/10.1117/12.948520

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