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基于混沌码的PPM-TH超宽带信号功率谱分析

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摘要 为了减小超宽带通信对其它通信系统造成干扰,依据混沌码元丰富、良好的相关特性和白噪声统计特性,将混沌码引入TH-UWB系统,推导了TH-PPM超宽带信号的功率谱密度,采用matlab仿真工具分析了基于logistic混沌映射跳时码的PPM-TH超宽带信号功率谱密度。结果表明混沌跳时码可以有效平滑功率谱且增长码周期、增大码序列最大值可以减少离散谱数量提高系统性能。
出处 《广东通信技术》 2011年第4期62-66,共5页 Guangdong Communication Technology
基金 陕西省教育厅专项科研计划项目(2010JK838)
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