摘要
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,进一步分别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和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影响。
According to the model of GPS observation, the paper researches the methods to weaken the mainly GPS mul tipath effect by establishing different mathematical models. Further analyze the multipatb effect of the pseudorange obser- vation and phase observations. The paper mainly researches the method of phase smoothing pseudorange and the method of wavelet analysis to weaken the multipath error, and extracted high precision multipath error. Through the experi ments, extracting the multipath error by using these methods.
出处
《北京测绘》
2013年第4期6-9,34,共5页
Beijing Surveying and Mapping
