中文说明：在matlab环境下，产生C/A码，可以选择输入卫星编号，仿真程序输出方波显示图并存为dat格式，为后续步骤使用。该程序可用于GPS软件接收机开发，是仿真GPS信号研究的基础，简单易学。
English Description：
In the MATLAB environment, C/A code, you can choose to enter the satellite number, square wave output of the emulator display coexistence to the dat format, for use in subsequent steps. This program can be used for software GPS receiver development, is the basis of simulated GPS signals, simple and easy to learn.