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Multipath Mitigation Method of GPS Signals Based on Blind Decision Feedback Equalization
Author(s): 
Pages: 46-52
Year: Issue:  1
Journal: Acta Electronica Sinica

Abstract: 给出了存在多径效应时的GPS接收信号模型,分析了多径干扰对GPS接收机跟踪环路的影响,将均衡技术应用于跟踪环路,提出了一种GPS信号多径干扰抑制方法.该方法在GPS信号跟踪环路中引入了判决反馈分数间隔均衡器,同时,根据GPS信号为BPSK调制且发送的伪码序列被导航电文调制后存在正负反转不确定性的特点,均衡器系数更新时选用MCMA盲均衡算法.仿真结果显示,该方法能够有效消除多径影响,验证了算法的正确...
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