Suppression of Sea Clutter of Skywave Radar Based on AR Model

Abstract:

The prediction of chaotic time sequence based on AR model is studied. The forming mechanism of the first-order Bragg lines of sea clutter is analyzed. According to the signal characteristic of sea clutter, a sea clutter time sequence predictor and a skywave radar sea clutter suppression system based on AR model are presented. The cancelling of sea clutter is achieved by subtracting the predicted signal from the original signal. The simulation results show that the first-order Bragg lines in the signal were suppressed effectively after processed by this sea clutter suppression system, the detecting performance of skywave radar was increased dominatively.

• Periodical: Applied Mechanics and Materials (Volumes 239-240)
• Pages: 382-386
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.239-240.382
• Online since: December 2012
• Authors: X H Zhang, W Sheng, S H Liu
• Keywords: AR Model, Bragg Line, Sea Clutter Suppression, Signal Characteristic, Skywave Radar

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