第二代小波在减少多路径效应方面的应用研究  

Study of Lifting Wavelet in Application to Solving Mulipath Effects

作　　者：朱习军[1] 胡建国[2] 郭金运[3] 

机构地区：[1]山东科技大学地理信息科学与工程学院 [2]中国测绘科学研究院,北京100039 [3]徐州师范大学国土信息与测绘工程系,江苏徐州221116

出　　处：《工程勘察》2006年第9期71-74,共4页Geotechnical Investigation & Surveying

基　　金：山东省自然科学基金项目(Y2003E01);山东省教育厅项目(J02F53)

摘　　要：数据后处理技术是解决高精度定位多路径效应的一个有效办法,而基于小波分析的多路径提取和消除技术是其中的一种正在发展中的有效手段之一。本文提出了一种基于第二代小波技术的多路径高频噪声的消除方法,实验证实了该种方法是有效的,同时也证明了该方法实现的简单性和计算的高效率。Data post-processing technique is an effective method to solve muhipath effects in high accurate positioning with GPS. And the method of extraction and reduction of muhipath effects based on wavelet analysis is a good way which is now in development. This paper presents a new method which is based on the second generation of wavelet technique to eliminate the muhipath effects. Then, a case study is made. The results indicate that this new method is very effective to reduce the muhipath effects, and it could be very simple to carry out. Besides, this method has been proved of highly efficient computation.

关 键 词：GPS 提升小波 多路径 消噪 

分 类 号：P227[天文地球—大地测量学与测量工程]