摘要
本文主要从GPS的基本观测方程出发,通过数学分析的方法,在GPS观测值之间建立数学模型,进一步推导了伪距观测值和相位观测值中多路径效应的影响。此外,主要研究了利用相位平滑伪距削弱伪距多路径误差的方法,以及利用小波分析的方法对GPS多路径值序列进行分解和重构,提取出高精度的多路径误差,并通过实验数据分析了几种方法中的多路径效应。
According to the model of GPS observation,the paper researches the methods to weaken the mainly GPS multipath effect by establishing different mathematical models.Further it analyzes the multipath effect of the pseudorange observation and phase observations.The paper mainly researches to use phase smoothing pseudorange weaken the pseudorange multipath error method,and the use of wavelet analysis method for GPS multipath value sequence for decomposition and reconstruction,the extracted high precision multipath error,and through the experiments to extract the multipath error by using these methods.
出处
《现代测绘》
2013年第4期3-5,11,共4页
Modern Surveying and Mapping
