计算机工程2012，Vol.38Issue(21)：103-106,4.DOI:10.3969/j.issn.1000-3428.2012.21.028
CPM信号的定时-相位联合估计算法
Joint Timing and Phase Estimation Algorithm for CPM Signals
摘要
Abstract
A joint timing and carrier phase estimation algorithm is proposed for the synchronization problem of Continuous Phase Modulation (CPM) based on decision data. After using Laurent representation to express CPM signals, Timing Error Detector(TED) and Phase Error Detector (PED) are got from the joint likelihood function of riming and carrier phase. After finding the instant gradient, the estimated timing and phase value is recovered by iteration computation. After analyzing the common binary partial response CPM signals such as PCM/FM, the implementation scheme of joint timing and carrier phase estimation algorithm is designed. Simulation result shows that the proposed algorithm is suited for binary partial response CPM signals. The timing and carrier phase error variance curve is close to the theoretical limit.关键词
连续相位调制/定时误差检测器/相位误差检测器/定时恢复/载波相位估计Key words
Continuous Phase Modulation(CPM)/ Timing Error Detector(TED)/ Phase Error Detector(PED)/ timing recovery/ carrier phase estimation分类
信息技术与安全科学引用本文复制引用
刘晓明,廖聪,汪梦柔..CPM信号的定时-相位联合估计算法[J].计算机工程,2012,38(21):103-106,4.基金项目
国家自然科学基金资助项目(51035008) （51035008）
