一种适用于脉冲多普勒雷达解速度模糊的方法  

A method for pulse Doppler radar to solve velocity ambiguity

作　　者：胡朗[1] 高青松[1] 陈春[1] 王建强[1] HU Lang;GAO Qingsong;CHEN Chun;WANG Jianqiang(Xi’an Electronic Engineering Research Institute,Xi’an 710100,China)

机构地区：[1]西安电子工程研究所,西安710100

出　　处：《空天预警研究学报》2022年第2期94-98,共5页JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH

基　　金：中央军委装备发展部预研项目(JZX7Y20190213000401)。

摘　　要：针对雷达多普勒测量过程中的多普勒通道量化误差、环境因素引起的测量误差以及目标特性本身等带来的目标多普勒估计误差而导致解速度模糊正确率降低的问题,提出了一种可适用于脉冲多普勒雷达解速度模糊的稳健方法.该方法通过多普勒插值减小多普勒量化误差,改进查表法,并通过合理控制各脉冲重复频率间解算最大允许偏差实现解速度模糊,给出了最大测量偏差的选择原则.理论分析和仿真结果表明该方法的稳健性和有效性.In the process of radar Doppler measurement,the error of Doppler channel quantization,measurement error caused by environmental factors and target Doppler estimation error caused by target characteristics itself,etc.result in the decline of the accuracy rate of solving velocity ambiguity.In order to deal with this problem,the paper proposes a robust method for velocity ambiguity resolution of pulsed Doppler radar.This method employs Doppler interpolation to reduce the Doppler quantization error,improves the table lookup method,and solves the velocity ambiguity by reasonably controlling the maximum allowable deviation between each pulse repetition frequency(PRF).The paper also presents the selection principle of the maximum measurement deviation.Theoretical analysis and simulation results show the robustness and effectiveness of the proposed method.

关 键 词：雷达测速 速度模糊 查表法 滤波器插值 

分 类 号：TN958.2[电子电信—信号与信息处理]