摘要随着美国GPS导航系统的发展和应用，卫星导航系统的作用显现的越来越重要，卫星导航技术可以对地面上的物体进行全天候，高精度，实时的定位和高精度的授时。并且卫星导航系统在大地测绘，海洋测量，救灾抢险等领域发挥着巨大的作用。25858
北斗卫星导航系统是我国自主研制的卫星导航系统，是继美国的GPS，俄罗斯的格洛纳斯之后，世界上第三个实现应用的卫星导航系统。北斗卫星导航系统提供两种服务，开放服务和授权服务，目前已覆盖亚太地区，其性能和可靠性可与目前的GPS相媲美，未来应用和发展潜力巨大。
Systemview是信号级的通信系统动态仿真软件,可对不同的通信系统进行动态仿真，无需进行复杂编程，操作方便，界面简明。本文利用Systemview对北斗卫星信号的发射接收进行仿真，并分析其信号结构和特性。
关键词 北斗卫星导航系统 GPS Systemview 信号仿真
毕业论文设计说明书外文摘要
Title BDS signal simulation based on Systemview
Abstract
As GPS application develops rapidly, human have realized that GNSS technology has great importance to our life. GNSS can be used for all-weather, high-precision and real time navigation and positioning. In addition, GNSS has been playing key role in geodetic surveying, emergency and disaster releasing, engineering measurement and so on.
Beidou Navigation Satellite System (BDS) is designed and developed only by china. It is the 3rd GNSS in the world after GPS and GLONASS. BDS offers two type service which are open service and authorization service. Now, BDS service has covered the Asia-Pacific region, and it is being developed for covering global service.
SystemView is a comprehensive dynamic systems analysis environment for the design and simulation of engineering or scientific systems. From analog or digital signal processing, filter design, control systems, and
communication systems to general mathematical systems modeling, SystemView provides a sophisticated analysis engine.
Keywords GPS GNSS BDS Systemview Signal simulation
目 次
1 绪论 4
1.1 引言 4
1.3 课题研究背景与实际意义 5
1.4 论文研究目标与研究内容 6
1.5 论文框架 6
2 北斗卫星导航系统组成及其信号分析 7
2.1 北斗卫星导航系统组成 7
2.1.1 系统组成 7
2.1.2 坐标系统 7
2.1.3 时间系统 8
2.2 北斗卫星信号分析 8
2.2.1 信号结构 8
2.2.2 测距码CB1I码 9
2.2.3 导航电文 11
2.2.3 调制方式 11
2.3 本章小结 12
3 基于systemview的北斗二代卫星信号仿真与实现 13
3.1 Systemview软件简介 13
3.2 单星信号发射端仿真 13
3.2.1测距码参数设置 13
3.2.2数据码参数设置 15
3.2.3 单星信号仿真结果 15
3.3 单星信号接收端仿真 19
3.4 对单星信号仿真结果的讨论与分析 23
3.4.1 对噪声的分析 23
3.4.2 对信号延时的分析 25
3.5 对多星信号仿真 26
3.5.1 多星信号发射仿真 26
3.5.2 多星信号接收仿真 28 基于Systemview的北斗卫星信号仿真:http://www.751com.cn/tongxin/lunwen_19833.html