| FM-DCSK调制在AWGN和多径信道下性能的仿真 |
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| 引用本文： | 吴树兴,王玫.FM-DCSK调制在AWGN和多径信道下性能的仿真[J].桂林电子科技大学学报,2002,22(1):12-16. |
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| 作者姓名： | 吴树兴 王玫 |
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| 作者单位： | 桂林电子工业学院,通信与信息工程系,广西,桂林,541004 |
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| 基金项目： | 广西青年自然科学基金资助项目(编号 :桂科青 9912 0 11) |
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| 摘 要： | FM- DCSK调制的抗噪声性能在混沌键控数字调制方案中是最优的 ,尽管在可加白高斯噪声信道下它的抗噪声性能不是最好的 ,但混沌信号天生的宽带特性使得它在多径传播条件下优于传统的窄带调制方案。在双射线多径信道下进行仿真的结果表明 ,在传统的窄带调制方案无能为力的情况下 ,FM- DCSK系统仅仅在它的噪声性能方面下降了 5 d B.
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| 关 键 词： | FM-DCSK PM-DCSK AWGN WLAN 多径传输 |
| 文章编号： | 1001-7437(2002)01-12-05 |
| 修稿时间： | 2001年12月7日 |
The Simulation for FM-DCSK Modulation in AWGN Channel and in Multi-path Channel |
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| WU Shu Xing,WANG Mei.The Simulation for FM-DCSK Modulation in AWGN Channel and in Multi-path Channel[J].Journal of Guilin Institute of Electronic Technology,2002,22(1):12-16. |
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| Authors: | WU Shu Xing WANG Mei |
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| Abstract: | This paper shows that the performance of FM DCSK is the best one in chaotic digital modulation schemes.In AWGN channel the performance of FM DCSK is inferior to the conventional narrow band modulation schemes,but in multi path channel it is superior to the latter because the chaotic signal is a wide band signal.The simulation results for two propagation paths present that the performance loss is less than 5 dB for FM DCSK modulation when conventional narrow band systems fail catastrophically under these conditions. |
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| Keywords: | FM DCSK PM DCSK AWGN WLAN multi path |
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