摘要
针对脉冲重复间隔(PRI)变换法及其改进方法难以分选重频变化信号的问题,提出一种新的信号分选方法,即脉冲相似度检索法。该方法把脉冲相似度引入改进的PRI变换法,根据脉冲相似度对雷达脉冲信号进行搜索、提取。仿真结果表明,该方法不仅使分选更加准确,而且实现了对重频抖动和重频受调制变化信号的分选,其分选准确率达到95%以上。
PRI （pulse repetition interval） transformation is difficult to sort the PRI changed signals. In order to solve this problem, a new method called pulse similarity retrieval method is put forward. This method introduces the pulse similarity to the improved PRI transformation, then searches and extracts the radar pulse signal according to the pulse similarity. Simulation results show that this method can not only sort the radar pulse signal more accurately, but also sort jittered PRI and modulated PRI signals, and the accuracy rate of sorting is more than 95%.
出处
《电讯技术》
北大核心
2012年第9期1492-1496,共5页
Telecommunication Engineering
基金
电子信息控制国防重点实验室基金资助项目(9140C1005051103)
陕西省自然科学基金资助项目(2012JQ8019)
陕西省电子信息系统综合集成重点实验室基金资助项目(201113Y01)~~
关键词
电子侦察
信号分选
重频抖动
PRI变换
electronic reconnaissance
signal sorting
jittered PRI
PRI transformation
