| CPM系统中的自适应检测图同步算法 |
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| 引用本文： | 姜俐侠,李炜,赵旦峰.CPM系统中的自适应检测图同步算法[J].电视技术,2011,35(11). |
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| 作者姓名： | 姜俐侠 李炜 赵旦峰 |
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| 作者单位： | 1. 渤海船舶职业学院电气工程系,辽宁葫芦岛,125200
2. 哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨,150001 |
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| 基金项目： | 国防预研项目(4010607010102) |
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| 摘 要： | 针对连续相位调制系统中同步算法复杂度较高、数据量大、判决门限复杂、延时长等缺点,对自适应门限相关检测算法进行改进,提出了一种检测图同步算法(Fast Synchronization Algorithm,FSA),其核心思想是将接收信号与本地同步码字进行检测运算,通过检测图以及简化的判决过程,达到快速判断同步性能的目的。将该算法应用于CPM调制方式,建立一种快速同步系统。理论分析和仿真结果表明,与传统同步方式相比较,FSA算法复杂度和通信数据量大大减少,判决难度降低,系统性能有所提高。
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| 关 键 词： | CPM调制 自适应检测 快速判决 同步 |
Fast Synchronization Algorithm of CPM Adaptive Decision System |
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| JIANG Lixia,LI Wei,ZHAO Danfeng.Fast Synchronization Algorithm of CPM Adaptive Decision System[J].Tv Engineering,2011,35(11). |
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| Authors: | JIANG Lixia LI Wei ZHAO Danfeng |
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| Affiliation: | JIANG Lixia1,LI Wei2,ZHAO Danfeng2(1.Department of Electrical Engineering,Bo Hai Shipbuilding Vacational College,Liaoning Huludao 125200,China,2.College of Information and Communication,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | For the continuous phase modulation system has the drawback of a high complexity of synchronization algorithm,large amount of data,high complexity of decision threshold and long delay,an improve algorithm of the adaptive threshold detection is introduced and a fast synchronization algorithm(FSA)is proposed.Its core idea is to calculate the received signal and the local synchronize codeword by a detecting diagram algorithm and simplified decision process,and determine the synchronization performance quickly.... |
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| Keywords: | CPM modulation adaptive detection fast decision synchronization |
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