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摘要在信息化技术快速发展的今天，导航技术已经渗透到军用、民用等领域。随着汽车行业的发展和车辆的广泛应用，车载导航技术愈加为人们所重视。如今广泛使用的导航仪是基于GPS全球卫星定位系统的导航仪，与此同时，我国自主研发的北斗卫星导航系统也逐步完善，航位推算（Dead-Reckoning，DR）导航系统与其他导航系统组合的导航方式也逐渐成熟。本文主要研究了北斗导航系统与DR导航融合的车载导航系统。42358
系统北斗信号接收模块选用MB100 OEM板卡，微处理器模块选择ATMEL公司的Atmega128单片机。系统所需实现的功能主要为接收原始的北斗卫星信息，进行数据处理，与DR部分的数据相融合，最后显示路径等导航信息。本文还通过实验对系统的功能做了具体的评估，验证了系统的可行性。根据实际研究情况对本课题进行总结，对今后工作提出展望。
毕业论文关键词 北斗导航 DR导航 ATMEGA128 路径显示 组合导航
毕业设计说明书外文摘要
Title Design of Beidou Navigation System
Abstract
Nowadays, the information technology has been developing rapidly, and the navigation system has penetrated into both military and civilian fields. With the development of auto industry and the applications of vehicle，the technology of vehicle Navigation is getting more recognition. The navigators widely used nowadays are based on GPS, but Beidou Navigation System independently researched and developed by China has been gradually completed and the Navigation system combined with DR Navigation system has been studied already. In this paper, we mainly research the combine of Beidou and DR Navigation System.
We choose MB100 OEM to receive the SAT-IF and Atmega128 produced by ATMEL to be the MCU. The function of the system is mainly to receive the original Beidou information, data processing, combination of Beidou and DR data and finally show the path. In this paper, the function of the system is evaluated, and the feasibility of the system is verified.. According to the actual situation of the research, this paper will sum up the future work and put forward the prospect of the future.
Keywords Beidou Navigation DR Navigation ATMEGA128 Route Display Combined Navigation
目次
1 绪论 1
1.1 研究背景与意义 1
1.2 技术发展现状 2
1.2.1 北斗导航卫星发展现状 2
1.2.2 组合导航系统 2
1.3 论文内容总体安排 3
2 系统总体设计 4
2.1 DR导航系统的原理 4
2.2 融合算法 5
2.3 AVR128单片机 6
2.4 MAX232芯片 7
2.5 MB100 OEM板卡 7
2.6 QVTC02液晶显示控制器 8
2.7 电子罗盘 9
2.8 本章小结 9
3 系统硬件设计 10
3.1 硬件总体设计 10
3.2 处理器模块电路 10
3.3 供电模块 10
3.4 电平转换及串口通讯部分
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