毫米波调频步进雷达复合测速方法  

Compound velocity measurement based on modulated frequency stepped radar

作　　者：孙慧霞[1] 刘峥[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《系统工程与电子技术》2011年第3期539-543,共5页Systems Engineering and Electronics

基　　金：国家自然科学基金(60901068)资助课题

摘　　要：毫米波调频步进体制雷达是一种重要的距离高分辨率雷达,运动补偿是其实现距离高分辨的核心技术。针对调频步进体制雷达的运动补偿问题,提出了三种复合测速方案:脉组间调频步进复合、脉组内调频步进复合及脉冲多普勒与调频步进复合方案,并对这三种方案的可行性和应用场合进行了分析,给出了一种可满足应用条件的复合测速方案,即脉冲多普勒信号与调频步进信号交替发射的复合测速方案,针对该方案给出了具体的参数设计与约束条件。仿真结果表明,该方案测速精度高,抗噪性能好,计算量小。Millimeter waves modulated frequency stepped radar is a kind of important high-range-resolution radar,and motion compensation is the key technique to realize high range resolution.Three compound approaches for velocity measurement are presented and their feasibility is analyzed,based on which a feasible method is developed,and the parameter design and constraints about the complex signal are discussed.Simulation results indicate that the method can accomplish accurate estimation of the target velocity with good anti-noise performance while only a small amount of computation is needed.

关 键 词：毫米波雷达 调频步进信号 运动补偿 复合测速 

分 类 号：TN958.3[电子电信—信号与信息处理]