Sea Clutter Mitigation Using Resonance-Based Signal Decomposition

A sea clutter mitigation method based on sparse optimization is proposed and tested with real radar data collected using a 2.425-GHz netted radar system developed at University College London, London, U.K. The proposed method was able to separate the target returns from the sea clutter returns, thus increasing the signal-to-interference ratio. It is shown that the extracted signal had a lower false alarm rate compared to the original signal.