| 一种CPM信号检测与定时同步算法 |
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| 引用本文： | 钟凯,葛临东,巩克现.一种CPM信号检测与定时同步算法[J].计算机工程,2011,37(21):77-79. |
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| 作者姓名： | 钟凯 葛临东 巩克现 |
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| 作者单位： | 解放军信息工程大学信息工程学院,郑州,450002 |
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| 基金项目： | 河南省基础与前沿研究基金资助项目 |
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| 摘 要： | 针对传统连续相位调制(CPM)接收机检测复杂度高和定时同步困难的问题，提出一种CPM信号联合检测与定时同步算法。基于低维Walsh信号空间分解CPM信号，在低通滤波器中采用子区间采样器代替大量匹配滤波器，利用面向判决的方式进行定时同步。仿真实验表明，该算法的复杂度较低，适用于多数CPM调制方案。
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| 关 键 词： | 连续相位调制 序列检测 定时同步 Walsh信号空间 修正克拉美罗界 |
| 收稿时间： | 2011-04-19 |
CPM Signal Detection and Timing Synchronization Algorithm |
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| ZHONG Kai,GE Lin-dong,GONG Ke-xian.CPM Signal Detection and Timing Synchronization Algorithm[J].Computer Engineering,2011,37(21):77-79. |
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| Authors: | ZHONG Kai GE Lin-dong GONG Ke-xian |
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| Affiliation: | (Institute of Information Engineering,PLA Information Engineering University,Zhengzhou 450002,China) |
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| Abstract: | Aiming at the problem of high detection complexity and timing synchronization difficulty in Continuous Phase Modulation（CPM）,this paper proposes a reduced-complexity detection and timing synchronization algorithm.It is based on a decomposition in the Walsh signal space.The receiver is just the ordinary linear filter followed by a subinterval sampler instead of the matched filters,and the synchronization is direct decision.Simulation results show that this algorithm exhibits excellent performance and may be employed with most CPM scheme. |
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| Keywords: | Continuous Phase Modulation（CPM） sequence detection timing synchronization Walsh signal space Modified Cramer-Rao Bound（MCRB） |
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