Spread Sea Clutter Suppression in HF Hybrid Sky-Surface Wave Radars Based on General Parameterized Time-Frequency Analysis

Figure 6

Sea clutter suppression with ionospheric phase disturbance based on GPTF and FBLP. (a) Contaminated sea clutter and decontaminated sea clutter spectrum by S²-method, STFT, and GPTF. (b) Estimated phase contamination by PGA, STFT, and GPTF. (c) Decontaminated sea clutter spectrum by GPTF. (d) The broadening sea clutter suppression based on the FBLP algorithm.

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