摘要
频率源相位噪声的指标直接影响频率源性能,因而建立相位噪声与相关雷达指标之间的关系为频综设计者确定频率源相噪指标、改善雷达性能具有一定的参考意义。结合频率稳定度理论,基于调频步进雷达系统的信号模型,分析得出,频率源相位噪声在信号处理过程中发生混叠现象;并比较得出在相噪和相噪混叠对多点目标成像的影响中,相噪的影响起主要作用。
The performance of frequency source is affected by phase noise quota,so it s significant to found relation between phase noise and radar quota for fixing on quota and improving performance.In this paper,according as the theory of frequency source stability and the model of the Chirp-stepped frequency signal,it deduces that the phase noise of frequency source will occur to mix in the course of signal processing,and phase noise has the chief effect on multipoint target imaging compared with phase noise mixing...
出处
《现代防御技术》
北大核心
2008年第5期88-91,共4页
Modern Defence Technology
关键词
调频步进雷达
相噪混叠
frequency modulation stepping radar
phase noise mixing
