西安电子科技大学学报（自然科学版）2016，Vol.43Issue(4)：34-38,99,6.DOI:10.3969/j.issn.1001-2400.2016.04.007
一种用于多相编码信号参数估计的 MST 改进算法
Modified MST for the parameter estimation of polyphase coded signals
摘要
Abstract
The polyphase coded signal is a kind of low probability of intercept radar signal which has the similar time frequency distribution as the linear frequency modulation signal . Now the parameter estimation of the polyphase coded signal has been a new research hotspot . Based on the matched signal transform theory , this paper derives the chirp rate estimation performance when the intercepted signal mismatches the time function . According to the characteristics of the quadratic polynomial function and the problems under actual reconnaissance environment , such as residual frequency error , incomplete signal and noise interferences , a modified matched signal transform based on two‐dimension search is proposed . Experiments on the P4 code analyze the parameter estimation performance . Experimental results verify that the algorithm can solve the problem of signal mismatch and has good properties of accuracy , calculation speed and engineering application .关键词
多相编码信号/匹配信号变换/复杂环境/调频斜率Key words
polyphase coded signals/matched signal transform/complex environment/chirp rate分类
信息技术与安全科学引用本文复制引用
江莉,李林,赵国庆..一种用于多相编码信号参数估计的 MST 改进算法[J].西安电子科技大学学报（自然科学版）,2016,43(4):34-38,99,6.基金项目
国家自然科学基金资助项目（61201287）；西安建筑科技大学青年科技基金资助项目 （）
