【摘要】 以logitic混沌序列代替伪随机序列,引入软件无线电思想,实现了软件无线电混沌扩频通信系统。对随机产生的混沌序列进行优选,得到了性能优异的混沌序列,在不同信道条件下进行了系统仿真。结果表明,系统各个模块均能正常工作,优选混沌序列性能优于传统序列,是扩频序列的新选择。更多还原

【Abstract】 Chaotic sequence code is used to take the place of PN sequence in spread spectrum communication. Chaotic spread spectrum communication system is realized based on the software radio mechanism. Optimized chaotic sequence code is chosen from the random chaotic sequence. Then, system simulation is done for different channels. It is showed that every component of system works properly, and the performance of chosen chaotic sequence is better than that of traditional spread spectrum sequence. Chaotic sequence code is an useful substitute for spread spectrum sequence.更多还原