差分相干同步CDMA信道中的一种新的抗多址干扰接收机

A New Anti multiuser interferences Receiver in Differentially Coherent Synchronous CDMA Channels

本文考虑加性白噪声环境中的同步ＣＤＭＡ通信系统，给出了一种新的线性非相干解调接收机，同时给出了这种抗多址干扰接收机的误码率及渐近效率。结果表明，对于使用Ｇｏｌｄ码作特征码的ＣＤＭＡ系统，当用户数不大于特征码长度时，这种接收机的最小渐近效率是０．

It is considered that a differentially coherent synchronous CDMA communications system in additive white Gaussan noise environment.A new non coherent linear receiver is proposed.The bit error rate and asymptotic efficiency are given also.It is shown that the minimum asymptotic efficiency is 0 5 when the signature code is Golds code and the user number is less than the length of signature code.