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对多目标的高精度参数测量是雷达面临的重要挑战。文中在分析线性调频信号距离-多普勒耦合效应的基础上,对传统的正负调频斜率脉冲信号实现单目标参数测量算法进行改进,提出一种利用多调频斜率合成脉冲信号实现多目标参数测量方法,解决了传统方法只能适用于单目标环境下的局限性,实现高精度多目标距离、速度测量,更好地抑制了虚假目标的出现,有效解决了线性调频信号脉冲压缩带来的距离走动误差。仿真验证了该方法的有效性,且具有良好的测量精度和稳定的抗干扰性能。
High-precision multi-target parameter measurement is an important challenge facing the radar. Based on the analysis of the distance-Doppler coupling effect of chirp signal, this paper improves the single-target parameter measurement algorithm of the traditional positive and negative chirp slope pulse signals and proposes a multi-target parameter measurement method based on multi-chirp slope synthesis pulse signal Method to solve the limitations of the traditional method can only be applied to single-target environment to achieve high-precision multi-target distance and velocity measurement, better suppress the emergence of false targets, effectively solve the pulse of chirped signal pulse compression distance Walking error. Simulation shows the effectiveness of the method, and has good measurement accuracy and stable anti-jamming performance.