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常规单脉冲雷达的发射脉冲一般具有快速上升沿,其回波含有丰富的高频分量,但传统的雷达信号处理系统并没有利用这些高频信息,致使雷达分辨率得不到提高。介绍的这种改进的逆滤波方法根据回波信噪比,结合逆滤波方法的高分辨特性和匹配滤波器的强抑制噪声能力,利用回波中的高频分量,使常规单脉冲雷达的分辨率有明显改善。仿真实验表明,采用这种方法使雷达分辨率得到提高。
Conventional monopulse radars usually have fast rising edges and their echoes are rich in high frequency components. However, conventional radar signal processing systems do not utilize these high-frequency signals, resulting in an increase in radar resolution. The improved inverse filtering method is introduced according to the echo signal-to-noise ratio, the high-resolution characteristic of the inverse filtering method and the strong noise suppression capability of the matched filter. By using the high frequency components in the echo, the resolution of the conventional monopulse radar Rate has improved significantly. Simulation results show that the radar resolution is improved by this method.