基于小波分析的GPS信号噪声特性  

GPS Signal Noise Characteristics Based on Wavelet Analysis

作　　者：李海文[1] 江思义[1] 李向民[1] 周海峰[1] 曾凯宁[1] 

机构地区：[1]广西建设职业技术学院土木系,广西南宁530003

出　　处：《地理空间信息》2010年第1期44-46,共3页Geospatial Information

基　　金：广西教育厅立项;广西财政资助项目(200708MS141)

摘　　要：通过提取南宁实验GPS控制网的原始载波信号,利用小波分析理论在多尺度、多分辨率、可伸缩、可平移等分析方面的优势,分别对提取的原始载波信号、单差观测值、双差观测值采用bd3小波函数进行3层小波分解,研究各种GPS信号噪声的特性,对减弱各种GPS噪声的影响有一定的参考价值。The author extracted the original ealTier signal of Nanning experimental GPS control network observation data, using the advantage of wavelet analysis theory in analysis separately such as multi-scale, multi-resolution, scalable and shiftable, decomposed original carrier signal extracted, single-difference observations and the double difference observations with db3 wavelet function for 3-layer, Studied the noise characteristics of GPS signals. It has certain reference value to weaken the impact of a variety of GPS noise.

关 键 词：小波 GPS 噪声 

分 类 号：P228.4[天文地球—大地测量学与测量工程]