| 一种新的复合混沌扩频序列 |
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| 引用本文： | 李一兵,楼喆,李彬.一种新的复合混沌扩频序列[J].哈尔滨工程大学学报,2001,22(3):75-78. |
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| 作者姓名： | 李一兵 楼喆 李彬 |
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| 作者单位： | 哈尔滨工程大学电子工程系, |
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| 摘 要： | 从Logistic-Map映射的表达式出发，经过一些数学推导得到了一个混沌序列，通过对其统计特性的数学表达式的分析，发现其与白噪声的统计特性一致，非常适合在扩频通信中用作扩频码，但由于存在截取的问题，这种类随机序列的平衡性较差，为了解决这一问题，本文提出了一种新的复合混沌扩频序列－mH序列，并采用交织的方式较好地解决了这个问题，仿真实难纛果表明，复合混沌扩频序列具有良好的相关性和平衡性，并且具有很强的抗破译能力。
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| 关 键 词： | 混沌映射 复合混沌扩频序列 保密通信 扩频通信 扩破译能力 |
| 文章编号： | 1006-7043(2001)03-0075-04 |
| 修稿时间： | 2000年9月5日 |
A NOVEL COMPLEX CHAOTIC SPREAD SPECTRUM SEQUENCE |
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| LI Yi_bing,LOU Zhe,LI bin.A NOVEL COMPLEX CHAOTIC SPREAD SPECTRUM SEQUENCE[J].Journal of Harbin Engineering University,2001,22(3):75-78. |
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| Authors: | LI Yi_bing LOU Zhe LI bin |
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| Abstract: | Establishes the mathematical expression of statistical properties of chaotic sequences generated by Logistic_Map and analyses its mathematical properties,points out that the statistical properties are identical with those of white noise, and they can suitably be used as spread spectrum sequences in CDMA; and only because of the random intersection, the balance property of this sequence is not so good,presents mH sequence, a novel complex chaotic spread spectrum sequence,to solve this problem, and concludes from experimental results that the mH sequence followed by a intertexture was a good balance property,and the complex chaotic spread spectrum sequence has good properties and excellent anti_decipher ability. |
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| Keywords: | chaotic mapping complex chaotic spread spectrum sequence secure communication |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
