| 频率合成器对跳频OFDM系统的性能影响分析 |
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| 引用本文： | 赵丹,方继承,张世杰,于全.频率合成器对跳频OFDM系统的性能影响分析[J].系统仿真学报,2006,18(12):3486-3490. |
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| 作者姓名： | 赵丹 方继承 张世杰 于全 |
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| 作者单位： | 1. 国防科技大学,电子科学与工程学院,湖南,长沙,410073
2. 中国电子系统设备工程公司研究所,北京,100039 |
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| 摘 要： | 跳频系统中频率合成器的输出信号在频率切换时会产生相位抖动,对跳频OFDM(FH-OFDM)系统的性能造成很大的影响。从分析频率合成器的结构入手,建立了系统相位抖动模型,详细分析并仿真验证了该模型中的各个参数对系统性能的影响,并在此基础上建立了MPSK调制方式下相位抖动对FH-OFDM系统误码率影响的统一的表达式。
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| 关 键 词： | 频率合成器 相位抖动 |
| 文章编号： | 1004-731X（2006）12-3486-05 |
| 收稿时间： | 2006-03-10 |
| 修稿时间： | 2006-09-21 |
Effects of Frequency Synthesizer on Performance of Frequency Hopped OFDM Systems |
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| ZHAO Dan,FANG Ji-cheng,ZHANG Shi-jie,YU Quan.Effects of Frequency Synthesizer on Performance of Frequency Hopped OFDM Systems[J].Journal of System Simulation,2006,18(12):3486-3490. |
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| Authors: | ZHAO Dan FANG Ji-cheng ZHANG Shi-jie YU Quan |
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| Institution: | 1.School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China; 2.Graduate School of China Electronics Equipment System Engineering Corporation, Beijing 100039, China |
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| Abstract: | Phase jitter occurs when frequency synthesizer changes its frequency in frequency-hopped communications, which severely affects the performance of frequency hopped OFDM (FH-OFDM) systems. The model of phase jitter was proposed based on the structure of the frequency synthesizer. The effects of the parameters of phase jitter on the performance of systems were investigated and simulated and a unified express of bit error rates (SER) was derived for the MPSK FH-OFDM system with phase jitter. |
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| Keywords: | FH-OFDM MPSK |
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