| CIRC编码在DS-SFH系统中的应用及性能分析 |
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| 引用本文： | 丁治国,叶中付,李长军. CIRC编码在DS-SFH系统中的应用及性能分析[J]. 无线电工程, 2006, 36(9): 20-22 |
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| 作者姓名： | 丁治国 叶中付 李长军 |
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| 作者单位： | 中国科学技术大学,信号统计处理研究室,安徽,合肥,230027 |
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| 摘 要： | 在Nakagami衰落信道的基础上,对采用DPSK调制方式的混合DS-SFH扩频通信系统进行了差错概率计算,分析了衰落参数对系统性能的影响。为了提高系统在低信噪比下的性能,又采用CIRC码对系统进行编码处理。理论和数值分析显示,CIRC编码作为一种能够有效对付突发差错的编码方式,可以有效地提高系统的抗多径干扰和多址干扰能力。
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| 关 键 词： | 混合直扩和慢跳频扩频系统 Nakagami衰落信道 CIRC编码 多径和多址干扰 |
| 收稿时间： | 2005-12-16 |
| 修稿时间： | 2005-12-16 |
Performance Analysis of CIRC Coded Hybrid DS-SFH Communication Systems |
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| DING Zhi-guo,YE Zhong-fu,LI Chang-jun. Performance Analysis of CIRC Coded Hybrid DS-SFH Communication Systems[J]. Radio Engineering of China, 2006, 36(9): 20-22 |
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| Authors: | DING Zhi-guo YE Zhong-fu LI Chang-jun |
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| Affiliation: | Institute of Statistical Signal Processing, USTC, Hefei Anhui 230027, China |
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| Abstract: | In this paper, we compute the BER of DPSK modulated hybrid DS - SFH spread spectrum communication systems with Nakagami fading channel and analyse the effects of muhipath interference and multiple access interference. In order to improve the performance of systems,we employ CIRC coding. Theoretical and numerical analysis show that CIRC coding which is a concatenated coding method can correct error and improve the anti-interference ability of systems effectively. |
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| Keywords: | hybrid DS - SFH spread spectrum communication Nakagami fading channel CIRC code muhipath and multiple access interference |
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