LFMCW雷达高速目标速度解模糊新方法  

A new method of eliminating high-speed target′s velocity ambiguity in LFMCW radar

作　　者：刘贤明[1] 谢恺[1] 吴学伍[1] 

机构地区：[1]中国人民解放军陆军军官学院,安徽合肥230031

出　　处：《现代电子技术》2012年第7期9-11,共3页Modern Electronics Technique

基　　金：安徽省自然科学基金(090412043);中国博士后科学基金(200801493;20080430223)

摘　　要：线性调频连续波(LFMCW)雷达中高速的直升机目标将产生速度模糊。为了解决高速目标的速度模糊,提出了航迹关联的解模糊方法,通过对目标运动建模,计算目标平均速度,并用平均速度估算最大不模糊速度的系数,实现高速目标的解模糊。实例应用表明:该方法估算性能好、简单、可操作性强。Velocity ambiguity can be produced by high-speed helicopter in LFMCW radar.For the velocity ambiguity resolution,the method of track correlation is applied.The model of target′s movement was constructed by calculating the average velocity,then the coefficient was estimated and the velocity ambiguity resolution was implemented.The case indicates that the method has good estimation performance and operability.

关 键 词：模糊速度 航迹关联 线性调频连续波 差拍信号 

分 类 号：TN96-34[电子电信—信号与信息处理]