说明：  采用软件无线电的概念来表述主题内容，英文原版。通俗讲解软件接收机的信号捕获、跟踪等原理，附有大量源程序，便于学习过程边学边用。
(The use of software radio concept to express the theme of the contents of the original English edition. Popular software on the receiver signal acquisition, tracking and so on principle, accompanied by a large number of source code, to facilitate the learning process to learn as to use.)