摘要
针对雷达窄带回波信号的循环互相关估计多普勒频移问题进行了研究。利用信号循环平稳特性,分析了存在多普勒频移条件下雷达窄带回波信号的循环统计特性,在此基础上提出了基于循环互相关变换的多普勒频移估计算法,该方法能有效地估计多普勒频移参数。最后利用计算机进行了仿真实验,验证了该算法的有效性。
The Doppler frequency estimation of radar narrow hand echo signal based on cyclic cross-correlation amplitude is discussed. The cyclic statistics of echo LFM signal is analyzed,and the Doppler frequency estimation based on the cyclic cross-correlation amplitude is constructed. The Doppler frequency is estimated efficiently after the method. Finally,the results of computer simulation show the method efficient.
出处
《航天电子对抗》
2006年第3期31-33,共3页
Aerospace Electronic Warfare
关键词
循环互相关
线性调频
多普勒频移
估计
cyclic cross-correlation
linear frequency modulation
Doppler frequency
estimation
