| 一种多进制正交扩频方案的解扩技术研究 |
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| 引用本文： | 徐辉,余晓刚,王华,匡镜明.一种多进制正交扩频方案的解扩技术研究[J].系统仿真学报,2003,15(7):1002-1004. |
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| 作者姓名： | 徐辉 余晓刚 王华 匡镜明 |
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| 作者单位： | 北京理工大学电子工程系,北京,100081 |
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| 摘 要： | 研究一种基于循环移位的M进制正交扩频方案，在MSK调制方式下，提出两种有代表性的接收机模型，前者具有理论上的最佳性能，后者更具有实际意义；在AWGN信道下对两种接收机模型进行理论分析和仿真，仿真得到的误码率与公式推导的结果吻合；对两模型误码率的仿真比较袁明，在相同误码率的情况下，模型一可以接收的最低信号功率比模型二低约2dB。
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| 关 键 词： | 多进制正交扩频 MSK调制 解扩 仿真 |
| 文章编号： | 1004-731X(2003)07-1002-03 |
| 修稿时间： | 2002年8月5日 |
De-spreading Technique of One M-ary Orthogonal Spread Spectrum System |
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| XU Hui,YU Xiao-gang,WANG Hua,KUANG Jing-ming.De-spreading Technique of One M-ary Orthogonal Spread Spectrum System[J].Journal of System Simulation,2003,15(7):1002-1004. |
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| Authors: | XU Hui YU Xiao-gang WANG Hua KUANG Jing-ming |
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| Abstract: | Aiming at a kind of m-ary orthogonal spread spectrum mechanism, two kinds of receivers based on MSK modulation were given, one of which had the best theoretical performance and the other had practical utility. Both receivers, especially the second, were analyzed and then simulated by COSSAP to get the bit error rate(BER) in AWGN channel, and two approaches get similar results. Comparison between two receivers?simulating results also shows that with the same BER, the minimum signal power that the former can receive is lower by about 2dB than that of the latter. |
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| Keywords: | m-ary orthogonal spread spectrum MSK modulation dispreading simulation |
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