摘要
介绍一种二维离散Walsh函数的新型构造方法和相关特性,并给出采用这种方法设计的发生器的电路结构。在码分多址扩频通信(CDMA扩谱通信)中,将离散Walsh码序列作为扩谱码可提高系统性能,有效地克服多路瑞利衰减,使32个、64个或更多的用户共用一个频率进行无线通信。
In this paper, we introduce a new generator of Walsh code and the properties of discrete Walsh function. Discrete Walsh function can be used as spread-spectrum code in the CDMA spread-spectrum communication system. This technology can improve performances and effectisely addresses the problem of multi-channel Rayleigh fading, so that 32, 64 or more users can share the same frequency.
出处
《电信快报》
2001年第7期33-34,37,共3页
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