基于离散混沌信号,提出一种在AWGN环境中双基函数相干CSK系统多用户噪声性能的分析方法。用Logistic映射作为混沌发生器,导出了用信噪比、用户数及比特序列长度表示的误码率(BER)表达式,理论计算与仿真结果相符。单用户情况下的BER和已提出的噪声性能上界是笔者所得结果的特例。 Based on discrete chaotic signals, an analysis method of multi-user noise performance of bi-basis function coherent CSK system in AWGN environment is proposed. Logistic map is used as chaos generator to derive the bit error rate (BER) expression of signal to noise ratio, number of users and length of bit sequence. The theoretical calculation is consistent with the simulation results. The BER for single-user cases and the proposed noise performance upper bound are a special case of the author’s results.