现代电子技术Issue(19)：28-32,5.
瞬时测频系统测LFM信号载频误差分析
Analysis for carrier frequency error in LFM signal measurement with IFM system
陈晓威 1李彦志 2何文波3
作者信息
- 1. 空军航空大学 研究生队，吉林 长春 130022
- 2. 空军航空大学 信息对抗系，吉林 长春 130022
- 3. 中国电子科技集团公司 第二十九研究所 军事代表室，四川 成都 610036
- 折叠
摘要
Abstract
Linear frequency modulation(LFM)signal is a signal form widely used by radars. Since the traditional instanta⁃neous frequency measurement(IFM)system is unable to analyze the internal frequency structure of LFM signal,which can influence the frequency measurement accuracy of LFM signal,the fundamental of IFM is introduced briefly,and the frequency ambiguity reso⁃lution method of IFM system with multi-channel phase discriminators is analyzed. Based on this,the model of processing the LFM signal by IFM system was established,and the reason why frequency measurement error of LFM signal is generated by IFM system was analyzed. The results of theoretical analysis were simulated and verified,which provided a theoretical reference for IFM technology in engineering application.关键词
瞬时测频/线性调频信号/测频误差/调频系数Key words
instantaneous frequency measurement/linear frequency modulation signal/frequency measurement error/fre-quency modulation coefficient分类
信息技术与安全科学引用本文复制引用
陈晓威,李彦志,何文波..瞬时测频系统测LFM信号载频误差分析[J].现代电子技术,2015,(19):28-32,5.
