本文是一篇模拟GPS接收机实时接收卫星信号并显示的设计论文，主要目的是模拟从GPS接收机接收数据并通过RS-232串行通信标准接口传输，然后按照一定格式显示出来。本设计主要是利用Visual C++ 强大的集成开发环境和快速创建各种应用程序的能力，创建各种图形操作界面，来编写一个实时接收并显示信息的窗体应用程序。本文介绍了GPS的一些历史和发展前景，GPS定位系统概况，GPS的数据传输码制、输出格式和Visual C++ 的发展、作用、集成开发环境和基础知识，以及完成该程序的关键技术： VC++的串口控件MSComm，最终完成了程序的编写，实现了毕业设计的要求。程序的结果是实时的显示了接收机接收来的数据。- This article is a piece of design dissertation , it simulations the GPS receiver real-time receive satellite signal and display it ,The paper mostly aims is Simulation the data received from the GPS receiver and through RS-232 Serial communication standard connection transmission , then displaying the data with certain form .This design mainly take use of the powerful collection exploitation environment of Visual C++ and the ability of double-quick establishing kinds of application, which includes very popular multimedia application and kinds of graph operation, compiles a real-time receive and the displayed information window application procedure. This article introduced GPS some history and the prospects for development, the GPS positioning system survey, the GPS data transmission code system, the output form　and the Visual C++ development, the function, the integrated development environment and the elementary knowledge as well as completes this procedure the essential technology