gps单频软件接收机跟踪程序，用c语言在vc++6.0开发环境下写成，并且对载波产生和码产生使用x87的浮点汇编指令集提高速度。-single-frequency software receiver gps tracking program, using c language in vc++6.0 development environment, written and produced for use of carrier generation and code compilation of