计算机应用研究2011，Vol.28Issue(6)：2294-2296,3.DOI:10.3969/j.issn.1001-3695.2011.06.079
一种基于循环谱的MPSK信号符号速率估计方法
Symbol rate estimation method of MPSK signals based on cyclic spectrum
摘要
Abstract
Aiming at the practical application of spectrum sensing, this paper studied the cyclic spectrum characteristics of MPSK signals which filtered by pulse shaping filter based on cyclic stationary theory.By analyzing the affect of excess bandwidth to cyclic spectrum estimation, provided a symbol rate estimation algorithm which combines constant amplitude processing with spectrally smoothed cyclic periodogram.Simulation result shows that the proposed algorithm can achieve good performance for limited data length, and even when excess bandwidth is small, the algorithm can estimate the symbol rate efficiently.关键词
MPSK信号/符号速率估计/循环谱/剩余带宽Key words
MPSK signals/ symbol rate estimation/ cychc spectrum/ excess bandwidth分类
信息技术与安全科学引用本文复制引用
谢然,张效义,田鹏武..一种基于循环谱的MPSK信号符号速率估计方法[J].计算机应用研究,2011,28(6):2294-2296,3.基金项目
国家重大专项基金资助项目(2009ZX03003-002-01) （2009ZX03003-002-01）
