电讯技术Issue(9)：1186-1190,5.DOI:10.3969/j.issn.1001-893x.2013.09.013
一种改进的卫星MPSK通信信号盲载频估计算法
An Improved Blind Carrier Frequency Estimation Algorithm for Satellite MPSK Signals
摘要
Abstract
For the problem of carrier frequency high-precision estimation of satellite signal an improved blind carrier frequency estimation algorithm for satellite MPSK signals is presented in presence of unknown parame-ters . The simplified format of fourth-order cyclic cummulant is analyzed and used in order to reduce the compu-tational complexity . The circular overlap Welch spectrum is used to perform a coarse estimation and the high-or-der cyclic cummulant method is used to perform a fine estimation . Simulation results show that the new algorithm can quickly and effectively estimate the signal carrier frequency under low SNR .关键词
卫星通信/MPSK信号/载频估计/盲估计/循环重叠Welch功率谱/高阶循环累积量Key words
satellite communication/MPSK signal/carrier frequency estimation/blind estimation circular overlap Welch/spectrum/high-order cyclic cummulant分类
信息技术与安全科学引用本文复制引用
燕展,康凯,王红军..一种改进的卫星MPSK通信信号盲载频估计算法[J].电讯技术,2013,(9):1186-1190,5.基金项目
国家自然科学基金资助项目（60972161）@@@@The National Natural Science Foundation of China （）
