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| 一种新的混沌键控方案——分段移位混沌键控 | |
| 引用本文： | 钱恭斌,腾洪梅,胡燕,丘水生. 一种新的混沌键控方案——分段移位混沌键控[J]. 通信技术, 2010, 43(4): 104-105,108 |
| 作者姓名： | 钱恭斌 腾洪梅 胡燕 丘水生 |
| 作者单位： | 1. 华南理工大学,电子与信息学院,广东,广州,510640;深圳大学,信息工程学院,广东,深圳,518060 2. 深圳大学,信息工程学院,广东,深圳,518060 3. 华南理工大学,电子与信息学院,广东,广州,510640 |
| 摘 要： | 为了进一步提高混沌通信系统的数据传输率,提出了一种新的混沌键控方案——分段移位混沌键控SSCSK,它是一种多进制调制方案。将SSCSK中的参考信号等分成M个信号段,根据传送的M进制数字码元,将M个信号段循环左移n（0≤n〈M）段,即形成信息携带信号。通过对其误码性能进行仿真分析可知,在相同的误比特率条件下,在信噪比要求上,二进制SSCSK比DCSK方案大约小3dB,四进制SSCSK的误比特率与DCSK方案接近,在混沌信号长度相同的条件下,四进制SSCSK的信息传输速率比DCSK提高了1倍。 |
| 关 键 词： | 混沌通信 分段移位混沌键控 误比特率 |
A Novel Modulation Scheme-Segment Shift Chaos Shift Keying |
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| QIAN Gong-bin,TENG Hong-mei,HU Yan,QIU Shui-sheng. A Novel Modulation Scheme-Segment Shift Chaos Shift Keying[J]. Communications Technology, 2010, 43(4): 104-105,108 | |
| Authors: | QIAN Gong-bin TENG Hong-mei HU Yan QIU Shui-sheng |
| Affiliation: | QIAN Gong-bin,TENG Hong-mei,HU Yan,QIU Shui-sheng ( College of Electronic , Information Engineering,South China University of Technology,Guangzhou Guangdong 510640,China, College of Information Engineering,Shenzhen University,Shenzhen Guangdong 518060,China) |
| Abstract: | In order to improve data rate of chaotic communication,a novel modulation scheme-segment shift chaos shift keying(SSCSK) is proposed.SSCSK is a multilevel modulation scheme,and the reference signal of SSCSK is divided into n parts,the M-ary symbols are mapped to the shift sequences of n parts.The simulation on SSCSK shows that,for the same bit error rate,the noise-signal ratio requirement for Binary SSCSK is nearly 3db less than that for DCSK,the requirement for 4-ary SSCSK is similar that for the DCSK.4-ar... |
| Keywords: | chaos communication segment shift chaos shift keying bit error rate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |