Clutter suppression and moving target detection and feature extraction for airborne high-range resolution phased-array radars

Jian Li; Guoqing Liu; Nanzhi Jiang; Peter Stoica

doi:10.1117/12.396355

24 August 2000 Clutter suppression and moving target detection and feature extraction for airborne high-range resolution phased-array radars

Jian Li, Guoqing Liu, Nanzhi Jiang, Peter Stoica

Author Affiliations +

Proceedings Volume 4053, Algorithms for Synthetic Aperture Radar Imagery VII; (2000) https://doi.org/10.1117/12.396355
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

We study the moving target detection and feature extraction in the presence of ground clutter for airborne High Range Resolution (HRR) phased array radar. To avoid the range migration problems that occur in HRR radar data, we first divide the HRR range profiles into Low Range Resolution (LRR) segments. Since each LRR segment contains a sequence of HRR range bins, no information is lost due to the division and hence no loss of resolution occurs. We show how to use a Vector Auto-Regressive (VAR) filtering technique to suppress the ground clutter. Then we show how to estimate the target parameters of interest, including the target Doppler frequency, Direction-of-arrival (DOA), and complex amplitude and range frequency of each target scatterer. A moving target detector based on a Generalized Likelihood Ratio Test (GLRT) detection strategy is also derived. Numerical results are provided to demonstrate the performance of the proposed algorithms.

Citation Download Citation

Jian Li, Guoqing Liu, Nanzhi Jiang, and Peter Stoica "Clutter suppression and moving target detection and feature extraction for airborne high-range resolution phased-array radars", Proc. SPIE 4053, Algorithms for Synthetic Aperture Radar Imagery VII, (24 August 2000); https://doi.org/10.1117/12.396355

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