本书采用软件接收机的观点，详细介绍了GPS接收机原理，涉及软件无线电和GPS两个热门领域。GPS接收机包括直接序列扩频信号接收技术和导航处理两个学科内容，涉及卫星星座及GPS信号的影响、信号捕获跟踪、导航电文解扩接收、伪距测量、定位和导航计算处理等内容。本书第2版增加了3章新的内容，主要涉及微弱信号和强干扰环境下，GPS接收机的处理方法。本书还附列了许多用Matlab编写的计算机程序，帮助阐明某些思想，一些可直接用于接收机的设计-This book uses software receiver　s point of view, described in detail GPS receiver principle, relates to the software radio and GPS two hot areas. GPS receiver including direct sequence spread spectrum signal receiving technology processing and navigation in two disciplines, relates to the satellite constellation and the influence of GPS signal, signal acquisition and tracking, navigation message despreading reception, pseudo distance measuring, positioning and navigation calculation etc.. Book Second Edition adds 3 new section, mainly involving the weak signal and strong interference environment, GPS receiver processing method. The book also annexed many written using Matlab computer program, to help clarify some ideas, some can be used directly in the design of receiver