一种GPS多径抑制的改进方法

摘要

Through the analysis Teager-Kaiser algorithm and multipath delay lock loop technique (estimated MEDLL), a kind of new algorithm for GPS multipath inhibition is put forward.The new algorithm in combination with TK algorithm based on improved MEDLL technology can attain the multipath signal parameters.It is able to separate the multi-path signal from received signal, and also reduces the impacts from multi-path signals.At last, the simulation is conducted by computer.The results obtained show that the time error of the improved estimation is less than that of MEDLL estimation.%通过分析Teager-Kaiser算法和多径估计延迟锁定环技术(MEDLL),提出了一种GPS多径抑制的新算法.新算法在结合了TK算子的堆础上对MEDLL技术进行了改进,得出了多径信号的各参数,并从接收信号中分离了多径信号,减小多径信号的影响,并最终估计出了直达信号.仿真结果表明,新算法的估计时间误差小于MEDLL的估计时间误差.