DS-CDMA通信系统，扩频码包括M序列。GOLD，正交GOLD，Gray规则瑞利衰落信道，多用户，统计误码率。,DS-CDMA communication system, the spreading codes including an M sequence. GOLD, orthogonal GOLD, Gray rules Rayleigh fading channel, multi-user, the statistical error rate.

扩频通信，多用户的直扩系统实现，m序列，Gold序列，正交Gold序列的误码率比较-Multi-user spread spectrum system implementation