Focused wideband direction finding

Hsien-Sen Hung; Chia-Yin Mao

doi:10.1117/12.130933

30 November 1992 Focused wideband direction finding

Hsien-Sen Hung, Chia-Yin Mao

Proceedings Volume 1770, Advanced Signal Processing Algorithms, Architectures, and Implementations III; (1992) https://doi.org/10.1117/12.130933
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

A robust focusing matrix, called unitary constrained array manifold focusing, is proposed for the coherent signal-subspace method which is a novel approach for direction finding of broad- band sources. The proposed focusing matrix has robustness against size variations of focusing sectors obtained by preliminary group angle estimates. To quantify information loss due to source focusing, a new measure, relative efficiency index, is introduced. This index is useful in assessing statistical sufficiency of a data-reduced statistic formed by source focusing. The sensitivity issue as well as estimation performance comparisons for various focusing schemes, based on simulations and relative efficiency index, are also presented.

Citation Download Citation

Hsien-Sen Hung and Chia-Yin Mao "Focused wideband direction finding", Proc. SPIE 1770, Advanced Signal Processing Algorithms, Architectures, and Implementations III, (30 November 1992); https://doi.org/10.1117/12.130933

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