For a bistatic high-frequency radar with a broad beamwidth receiving antenna, over the range-limited clutter cell, the deviations of bistatic angle and wind direction would bring about broadened bistiatic cross sections of the ocean surface in contrast to a narrow beam bistatic hf radar. Based on Eric Gill's narrow beam HF cross sections of the ocean surface, broad beam HF bistatic cross sections of the ocean surface were presented and the results were obtained by numerical simulation. The results showed that the broad beam bistatic cross sections of the ocean surface were the superposition of narrow beam and were broadened at the same time.
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