| 基于Logistic映射的混沌二相编码性能分析 |
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| 引用本文： | 熊伟.基于Logistic映射的混沌二相编码性能分析[J].火力与指挥控制,2012,37(8):62-65. |
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| 作者姓名： | 熊伟 |
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| 作者单位： | 中航雷达与电子设备研究院,江苏 无锡,214063 |
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| 摘 要： | 针对目前常用的伪随机二相编码的缺点,利用Logistic混沌映射产生混沌序列并进行数字量化和截取,生成混沌二相编码信号,重点分析了混沌二相编码信号的相关性、混合信号隔离度、抗干扰性能和多普勒敏感性能。仿真分析表明,混沌二相编码信号不仅具有大的时宽带宽积和良好的自相关性,而且具有较强的抗干扰性能和更宽的多普勒容限,是一种较为理想的雷达脉冲压缩信号。
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| 关 键 词： | Logistic映射 混沌 二相编码 多普勒频率 |
Analysis of Chaotic Binary-phase Code Based on Logistic Mapping |
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| XIONG Wei.Analysis of Chaotic Binary-phase Code Based on Logistic Mapping[J].Fire Control & Command Control,2012,37(8):62-65. |
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| Authors: | XIONG Wei |
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| Institution: | XIONG Wei(Radar and Avionics Institute,Aviation Industry Corporation of China,Wuxi 214063,China) |
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| Abstract: | According to the disadvantages of common pseudo binary-phase code,the generating scheme of chaotic binary-phase coded signal(CBCS) based on Logistic chaotic mapping is presented.Firstly,CBCS is obtained by digital measuring and intercepting chaotic sequence,which generated from Logistic chaotic mapping.Then,the correlation,insulation degree,anti-interference performance and doppler frequency sensitivity are analyzed in detail.The simulation examples show CBCS big not only is product of time-width and bandwidth signal,but also has nicer autocorrelation features.Moreover,the anti-interference performance of CBCS is better and the doppler frequency tolerance is greater,which demonstrate CBCS is an ideal radar pulse compression signal. |
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| Keywords: | Logistic mapping chaos binary-phase code doppler frequency |
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