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本文讨论了一种新型的混沌在扩信号的相关检测方案,通过利用混沌序列良好的统计特性可以有效地检测出信号.文中推导出该方案误码率的解析表达式,发现了混沌扩频序列码片数和信道噪声与误码性能的内在联系.仿真结果表明该相关检测方案对信道噪声有很好的鲁棒性,并通过仿真得到了误码率的经验公式.
This paper discusses a new type of correlation detection scheme for chaotic spreading signals, which can effectively detect the signals by using the good statistical properties of chaotic sequences. In this paper, the analytical expression of the bit error rate of the scheme is deduced, and the intrinsic relationship between the number of chaotic spread spectrum chips and the channel noise and error performance is found out. The simulation results show that the correlation detection scheme has good robustness to channel noise and the empirical formula of bit error rate is obtained through simulation.