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Sea clutter is influenced by numerous complex factors, particularly in grazing incidence scenarios, where it significantly affects radar performance in detecting surface targets, creating unavoidable interference. This paper analyzes the anti-interference performance of different signals against sea clutter. From the perspective of waveform generation, an Orthogonal Frequency Division Multiplexing-Subband Filter (OFDM-SF) signal is designed. Experimental results show that OFDM-SF outperforms conventional OFDM radar, achieving a 3 dB improvement in signal-to-clutter ratio when combating sea clutter.

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Waveform Design of OFDM-SF for Sea Clutter Suppression Based on Joint Filters

  • 会议论文

  • 发表日期：

    2026年

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  • Ji Li,
  • JiaLiang Li

摘要

Sea clutter is influenced by numerous complex factors, particularly in grazing incidence scenarios, where it significantly affects radar performance in detecting surface targets, creating unavoidable interference. This paper analyzes the anti-interference performance of different signals against sea clutter. From the perspective of waveform generation, an Orthogonal Frequency Division Multiplexing-Subband Filter (OFDM-SF) signal is designed. Experimental results show that OFDM-SF outperforms conventional OFDM radar, achieving a 3 dB improvement in signal-to-clutter ratio when combating sea clutter.