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中文摘要：
为实现基于消息传递的迭代伪码快速捕获算法的多用户应用,对单用户迭代捕获算法进行了改进,提出了多用户联合初始信息进化和各用户多重迭代的捕获方案,给出了多用户迭代伪码捕获算法的流程,解决了多址干扰和噪声干扰给迭代捕获算法造成的困难.仿真结果表明,改进后的多用户迭代伪码捕获算法的估计序列误码率较改进前各单用户迭代伪码捕获算法有很大程度的降低,证明了该算法的有效性.
英文摘要：
To realize multi-user application of iterative PN（pseudo noise） code fast acquisition algorithm based on message passing,on the basis of single-user iterative acquisition algorithm,an acquisition method of multi-user united initial message evolution and multi-iterative of each user was proposed,and the algorithm process of multi-user iterative PN code acquisition was showed.Simulation results show that the estimated sequence BER（bit error rate） of multi-user iterative PN code acquisition algorithm is obviously lower than that of each-user iterative algorithm, which proved that the algorithm is effective.
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