| 通用差分混沌键控通信系统及其性能分析 |
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| 引用本文： | 赵华,吴勇,殷奎喜.通用差分混沌键控通信系统及其性能分析[J].通信技术,2009,42(2):79-81. |
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| 作者姓名： | 赵华 吴勇 殷奎喜 |
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| 作者单位： | 1. 南京师范大学物理科学与技术学院,江苏,南京,210046
2. 南京师范大学虚拟地理环境教育部重点实验室,江苏,南京,210046 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，虚拟地理环境教育部重点实验室开放项目 |
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| 摘 要： | 在各种混沌通信方案中，差分混沌键控混沌采用了易于实现的非相干解调，因而成为了混沌超宽带通信研究的热点。文章基于传统差分混沌键控通信提出一种通用差分混沌键控通信系统，该系统包含了多种差分混沌键控通信系统。文中理论分析了该系统中每比特采样点数、每符号比特数和信号占空比三个参数对于系统性能的影响，通过仿真证明了理论分析的正确性，最后分析了仿真和理论分析差异产生的原因。
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| 关 键 词： | 混沌通信 差分混沌键控 参考信号传输系统 超宽带通信 |
Analysis on System Character of General Differential Chaos Shift Keying |
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| ZHAO Hua,WU Yong,YIN Kui-xi.Analysis on System Character of General Differential Chaos Shift Keying[J].Communications Technology,2009,42(2):79-81. |
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| Authors: | ZHAO Hua WU Yong YIN Kui-xi |
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| Affiliation: | ZHAO Hua, WU Yong, YIN Kui-xi (1.College of Physics Science and Technology, Nanjing Normal University, Nanjing Jiangsu 210046, China 2.Key Laboratory of Virtual Geographic Environment, Nanjing Normal University, NanJing Jiangsu 210046, China) |
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| Abstract: | Among the modulation schemes using the chaotic signal, Differential Chaos Shift Keying （DCSK） is a robust non-coherent technique with respect to the implementation issue, and much research effort has been devoted to the study of DCSK in chaos UWB. A general DCSK based on the conventional differential chaos shift keying is proposed in the paper. It includes many different DCSK systems. The affects of the three parameters, including the number of samples in one bit, the number of bits in one symbol and duty cycle, are analyzed in theory, and simulation has also proved the correctness of theoretic analysis. Finally, the reason for difference between simulation and theoretic analysis is also analyzed in detail. |
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| Keywords: | Chaos communication DCSK transmitted reference system UWB |
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