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工作在高频波段的超视距雷达如何抑制雷电、无线电通信等信号的冲击干扰是目前国内外尚未解决的问题。本文首次揭示了这种干扰在雷达多普勒域存在的奇异性特征，并根据这种特征提出了在多普勒域检测冲击干扰的小波分析方法和高频雷达抑制冲击干扰的方案。现场实验结果表明这种方法简便有效。本文从理论上解决了在窄带相关系统中检测冲击干扰的问题，工程上实现了高频雷达对冲击干扰的抑制，从而提高了这种雷达的生存能力
How the over-the-horizon radar operating in the high frequency band suppresses the impact interference of signals such as lightning and radio communication is the unsolved problem at home and abroad. This paper first reveals the singularity of this interference in the radar Doppler domain. Based on this feature, a wavelet analysis method for detecting the impact interference in the Doppler domain and the scheme of high frequency radar to suppress the impact interference are proposed. Field experiments show that this method is simple and effective. This paper theoretically solves the problem of detecting impulsive interference in narrow-band correlation system, and realizes the suppression of impulse interference caused by high-frequency radar in engineering so as to improve the survivability of such a radar