GPS软件接收机信号特征分析  

SIGNAL ANALYZATION OF SOFTWARE GPS RECEIVER

作　　者：李伟[1] 胡丛玮[1] 

机构地区：[1]同济大学测量与国土信息工程系,上海市四平路1239号200092

出　　处：《测绘信息与工程》2008年第5期1-3,共3页Journal of Geomatics

基　　金：国家自然科学基金资助项目(40671155)

摘　　要：介绍了GPS信号的组成及特性,研究了信号的预处理过程,用Matlab实现了采样后的GPS信号的特征的绘制。The composition and the self-character of GPS signal are introduced. Then an indepth research of the signal pretreament procedure including sampling scheme and sampling frequency selection in the design of the software GPS receiver, three character depiction figures are shown with the calculation of real data in Matlab, followed by the analyzation of these three characters of intermediate frequency.

关 键 词：GPS软件接收机 数字化 中频信号 信号特征 

分 类 号：P228.4[天文地球—大地测量学与测量工程]