After observing the correlative of Pseudo Noise code , we analyse the main cause of multi-access interference , and build the receiving model of multiuser system .
本文从扩频码相关的角度分析了多址干扰产生的原因，并建立了多用户系统的接收模型。
参考来源 - CDMA移动通信系统中多用户检测算法的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The spread spectrum (SS) signal is modulated by high-rate pseudo noise code, and belongs to typically periodic signal.
被高速伪随机码调制的扩频信号，其伪随机码是具有随机编码信号特征的周期信号。
Because of the limits of feedback devices, high speed pseudo noise code generation cannot depend simply on the improvement of clock rate.
由于反馈器件的限制，高速伪码不能采用单独依赖提高时钟频率的方法。
The searching range of pseudo noise code was narrowed utilizing to the information provided by epicheirema. The lost reacquisition time was shortened.
利用有效星历所提供的先验信息，对伪随机码的搜索范围进行压缩，缩短了伪随机码失锁重捕的时间；
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