| 混沌扩频序列有限精度研究 |
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| 引用本文： | 吴芝路,任广辉,赵楠,杨水旺.混沌扩频序列有限精度研究[J].哈尔滨商业大学学报(自然科学版),2006,22(1):42-45. |
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| 作者姓名： | 吴芝路 任广辉 赵楠 杨水旺 |
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| 作者单位： | 哈尔滨工业大学,信息工程系,黑龙江,哈尔滨150001 |
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| 摘 要： | 对混沌序列有限精度下限进行了研究,结果表明,经典混沌序列所需精度非常高,而现有几种对Logistic混沌序列进行改进的方法使其所需精度明显下降.对这些方法进行了分析比较和改进,改进后计算量明显降低,硬件实现更加容易.
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| 关 键 词： | 混沌扩频序列 有限精度效应 精度下限 相关函数 |
| 文章编号： | 1672-0946(2006)01-0042-04 |
| 修稿时间： | 2005年7月12日 |
Study on finite precision of chaotic spread spectrum sequences |
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| WU Zhi-lu,REN Guang-hui,ZHAO Nan,YANG Shui-wang.Study on finite precision of chaotic spread spectrum sequences[J].Journal of Harbin University of Commerce :Natural Sciences Edition,2006,22(1):42-45. |
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| Authors: | WU Zhi-lu REN Guang-hui ZHAO Nan YANG Shui-wang |
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| Abstract: | This paper studies the precision threshold of chaotic sequences.The results of simulation showed that the precision of classical chaotic sequences is very high.At present several modified methods of Logistic chaotic sequence decrease the need for precision obviously.These methods are analyzed and compared and the shrinking method with the best performance is improved,which can decrease calculation volume obviously.Furthermore,it is easier to realize in hardware than conventional chaotic sequences. |
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| Keywords: | chaotic spread spectrum sequences finite precision threshold of precision related function |
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