摘要
本文分析了利用循环平稳方法估计离散时间时变幅值复线性调频（ＬＦＭ）信号参数的渐近统计性能，表明所得的时变幅值ＬＦＭ信号参数估计的均方差与相应的ＣｒａｍｅｒＲａｏ界关于Ｔ的收敛性具有相同的数量级．模拟结果验证了所得结果的正确性．
The concern here is to use cyclostationary approach to estimate the parameters of a complex linear FM signal with time varying amplitude from noisy observation.The asymptotic performance is analyzed and the variance of the estimates is shown to be the same order of magnitude as their Cramer Rao bounds.The statistical analysis is verified by simulations.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1999年第4期135-136,共2页
Acta Electronica Sinica
基金
国家自然科学基金
关键词
循环平稳方法
时变幅值
复线性调频信号
估计
Cyclostationary approach,Time varying amplitude,Complex chirp signal,Parameter estimation,Asymptotic statistical performance
