基于循环谱的相位编码信号调制参数估计  

Modulation Parameter Estimation Based on Cyclic Spectrum of MPSK

作　　者：刘鹭航 周云生 

机构地区：[1]北京遥测技术研究所,北京100076

出　　处：《遥测遥控》2009年第3期47-53,共7页Journal of Telemetry,Tracking and Command

摘　　要：研究循环谱在雷达脉内参数估计问题中的应用,给出在已知调制方式和未知调制方式两种情况下相位编码信号载频和码元速率的估计方法,并分析噪声对循环谱估计方法的影响。最后,通过计算机仿真,验证了估计算法的有效性,并给出了在不同信噪比下的估计性能。This paper studies the application of the cyclic spectrum in the field of radar’s inner-pulse parameter estimation.Methods to estimate the carrier frequency and chip rate of MPSK signals are presented according to the different conditions that the modulation type is known and unknown.The impact of noise on the performances of parameter estimation is analyzed.Finally,the availability of the algorithm is proved by the computer simulation.The performances of the estimating method under different SNR are obtained.

关 键 词：循环谱 载频估计 码元速率估计 

分 类 号：TN911.3[电子电信—通信与信息系统]