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对正交序列扩频通信系统（ＤＳ－ＣＤＭＡ）在多路径脉冲时延展宽（一次参数）作用下的传输误码率（二次参数）特性进行了数学分析建模与计算机模拟分析，研究了一次参数、二次参数之间的变化关系。通过理论分析与计算机模拟，给出了建立一次参数与二次参数之间关系的分析建模方法。计算结果表明，Ｅｂ／Ｎ０ 对传输误码率有较大的影响；数字脉冲平均时延的变化对传输误码率的影响不是非常显著的，而数字脉冲多路径时延展宽对传输误码率的影响是非常明显的，这一分析计算结果与文献［４］的实际测量结果相一致
The mathematical analysis modeling and computer simulation analysis of transmission error rate (quadratic parameter) of orthogonal sequence spread spectrum communication system (DS-CDMA) under multipath pulse duration extension (primary parameter) The relationship between the first parameter and the second parameter. Through theoretical analysis and computer simulation, the analytical modeling method of establishing the relationship between primary parameters and secondary parameters is given. The results show that Eb / N0 has a significant impact on the transmission error rate. The effect of the average delay of digital pulse on the transmission error rate is not very significant, while the multiplication delay of digital pulse multipath affects the transmission error rate The effect is very obvious, the result of this analysis is consistent with the actual measurement result of [4]