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Proceedings Paper

Rank-deficient robust Capon filter-bank approach to complex spectral estimation
Author(s): Yanwei Wang; Jian Li; Petre Stoica
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Paper Abstract

We consider nonparametric complex spectral estimation using an adaptive filtering based approach where the finite impulse response (FIR) filter-bank is obtained via a rank-deficient robust Capon beamformer. We show that by allowing the sample covariance matrix to be rank-deficient, we can achieve much higher resolution than existing approaches, which is useful in many applications including radar target detection and feature extraction. Numerical examples are provided to demonstrate the performance of the new approach as compared to existing data-adaptive and data-independent FIR filtering based spectral estimation methods.

Paper Details

Date Published: 2 September 2004
PDF: 8 pages
Proc. SPIE 5427, Algorithms for Synthetic Aperture Radar Imagery XI, (2 September 2004); doi: 10.1117/12.541596
Show Author Affiliations
Yanwei Wang, Univ. of Florida (United States)
Jian Li, Univ. of Florida (United States)
Petre Stoica, Uppsala Univ. (Sweden)


Published in SPIE Proceedings Vol. 5427:
Algorithms for Synthetic Aperture Radar Imagery XI
Edmund G. Zelnio; Frederick D. Garber, Editor(s)

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