【作者】 陈玉植；

【导师】 金一丞；

【作者基本信息】 大连海事大学 ， 交通信息工程及控制， 2004， 硕士

【摘要】 导航定位是船员必须具备的最基本的技能之一。而在船舶导航设备中，GPS以其能提供连续、高精度的船位，已经成为船上最重要的一种导航和定位的方法。 近年来，船舶操纵模拟器，已越来越成为履约培训的有效手段。那么，船舶模拟器的GPS模块，应具备哪些基本特点呢?与采用真实设备(GPS接收机)或采用一般的GPS模拟器进行培训不同的是，船舶模拟器中的GPS模块，应该与所模拟的船舶位置有关，能实现操作上的交互，能根据船舶位置变化提供合理的响应，且应能反映当前GPS系统的状况。 据此作者首先分析了GPS模拟器研制开发的意义，应具备的功能以及当前GPS模拟器的研究现状，然后通过对GPS卫星运动规律的研究，根据卫星轨道参数同船位无关的特性，利用GPS OEM板接收的导航电文，在大型船舶操纵模拟器的基础上，提出了基于GPS OEM的GPS模拟器的设计方案，并结合大型船舶模拟器实现了上述构想。本文同时对GPS模拟器研制涉及到的一些问题作了详细阐述。这些问题包括卫星导航数据的采集，卫星位置的求取，几何精度因子GDOP的计算，选星和GPS船位的计算，并描述了GPS模拟器的程序实现。更多还原

【Abstract】 Navigation and positioning are basic abilities of seaman. GPS is the most important navigation and position equipment for its ability to provide the continuous and precise ship position.In recent years, ship handling simulator play great role in the seaman training in fulfilling the convention. As far as the GPS module of ship handling simulator is concerned, what are the basic characteristics of it? Different from the training making use of real equipment (GPS receiver) or ordinary GPS simulator, the GPS module of the ship handling simulator must related to the position of the simulating ship, be able to provide the interaction with user and reasonable response according to the change of the ship position, futhermore, it must reflect the status of GPS system.In the first, the paper analyses the significance of the research of GPS simulator, the function the simulator should have and the research status of the GPS simulator now,. Then it presents how to make use of the navigation and satellite informations GPS OEM received to develop the GPS simulator in the base of Ship-handling simulator according to the motion rule of satellite and the characteristic that the orbit parameters of satellite are independent of the ship’s position ,and put forward the main framework of the simulator .At the same time ,it focus on the problems involved in the developing of GPS simulator ,which including the collection of satellite navigation data ,the calculation of the satellite position ,the calculation of GDOP satellite select and the calculation of GPS position of the ship. At last ,the paper present the application of GPS simulator in Visual C++.更多还原