文档介绍：I 基于 51 单片机的 GPS 接收机摘要全球定位系统(GPS) 是由美国国防部开发的一种先进的无线电导航系统。该系统能够全天候、全方位的为海陆空用户提供连续的、高精度的三维坐标、三维速度和时间等信息。它所具有的诸多优点是其他导航设备所无法比拟地。现在, GPS 接收机作为一种先进的导航和定位仪器,已在军事及民用领域得到广泛的应用。本设计详细介绍了一种成本低又能满足性能使用要求的经济型 GPS 接收机的设计方案。此方案基于单片机、 GPS 模块和 1602 液晶显示屏等硬件, 并应用 C 语言实现了 GPS 信号的提取、显示及基本的键盘控制操作等。经过实践测试, 这种接收机可以达到基本 GPS 信息接收以及显示,可以做到体积小、精度高、连续导航,并可广泛应用于个人野外旅游探险、出租汽车定位及海上作业等领域。关键词: GPS ,单片机, 接收机, GR-87 , LCD II DESIGN OF GPS RECEIVER BASED ON 51 SINGLE PUTER ABSTRACT Global Positioning System(GPS) is the most advanced radio navigation system which was developed by the Department of Defence. The system can be used under any weather conditions, all day long and anywhere on the earth. It can provide land, marine and airborne user with continuous, highly accurate three-dimension position, velocity, time dataetc. It has various advantages that are unexampled other kind of navigation equipment. Now GPS receivers, asa type of advanced equipment on navigation and positioning, have been widely used in both military and civil field. This design introduced in detail one kind of low-cost economy GPS receiver's design proposal which can satisfy the performance operation requirements .This plan is based on single puter 、 GPS and 1602 liquid crystal display monitors, and has realized the GPS signal extraction, the demonstration and the basic keyboard control operation and so on using the C language. By practical measurement, the receiver can achieve GPS information receive and display. It has small size and low cost, can be used in wild adventure tourism, taxi positioning and operations at sea. KEY WORDS: GPS , single puter , receiver , GR-87 , LCD 1 目录前言............................................................................................................ 3 第1章 GPS 系统简介及设计方案选择................................................. 5 GPS 系统简介................................................................................. 5 GPS 由来及发展........................................................