| 群时延失真对4PSK系统性能影响的仿真与分析 |
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| 引用本文： | 肖潇. 群时延失真对4PSK系统性能影响的仿真与分析[J]. 电子工程师, 2011, 37(3): 33-36 |
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| 作者姓名： | 肖潇 |
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| 作者单位： | 湖南农业大学信息科学技术学院，长沙，410128 |
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| 基金项目： | 2010年度湖南省教育厅研究项目:宽带卫星系统的调制技术研究 |
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| 摘 要： | 群时延失真是影响宽带卫星通信误码性能的重要因素之一。文章介绍了群时延的概念和数学模型，给出了群时延仿真模型与仿真方法，最后利用MATLAB软件仿真了两种典型群时延对系统性能的影响，说明在宽带通信中必须要重视信道群时延特性。
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| 关 键 词： | 群时延 误码率 仿真 |
Simulation and Analysis of Influence of Group Delay Distortion on 4PSK Communication System Performance |
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| XIAO Xiao. Simulation and Analysis of Influence of Group Delay Distortion on 4PSK Communication System Performance[J]. Electronic Engineer, 2011, 37(3): 33-36 |
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| Authors: | XIAO Xiao |
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| Affiliation: | XIAO Xiao (School of Information Science and Technology, Hunan Agricultural University, C hangsha 410128, China) |
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| Abstract: | Group delay distortion is one of the most important factors which affect the BER （bit error rate） performance of wide-band satellite communication. The concept and expressions of group delay and group delay simulation model are introduced here. Based on the two classical group delay distortion models and using MATLAB software, this paper simulates the influence of group delay distortion on communication system performance. The result shows that the influence of group delay distortion on wide-band communication system must be taken account of. |
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| Keywords: | group delay distortion bit error rate （BER） simulation |
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