一种适用于Grake接收机的多径搜索算法
multipath search algorithm for Grake receiver
近年来,Grake接收机在HSDPA中得到了广泛地应用,但Grake接收机对多径位置的精度要求很高,传统的多径搜索算法已不能满足Grake的性能要求。所以本文提出了一种适用于Grake接收机的多径搜索算法,该多径搜索算法首先采用平滑滤波提高相关值的准确度,最后根据自适应选径准则保证在大的信噪比动态范围内准确地选出信号径。在文章的最后进行了仿真,通过仿真结果可以看出本设计方案在低复杂度的前提下比传统的具有良好地性能,具有很大的实用价值。
In these years, the Grake receiver has been widely used in HSDPA communication systems. However, the Grake receiver's performance heavily depends on the singal path's precision. In this paper, a multipath search algorithm for Grake receiver is provided. This multipath search algorithm first filter the correlation value, and then select the signal path in a large SNR range by the dynamic threshold at last. And at the end of this paper, the simulation result proves that this multipath search algorithm has good performance with low complexity.
林家儒、黄黎明
无线通信通信
HSDPAGrake接收机多径搜索
HSDPAGrake recieverMultipath search
林家儒,黄黎明.一种适用于Grake接收机的多径搜索算法[EB/OL].(2011-10-10)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/201110-57.点此复制
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