【作者】 马鲲；

【导师】 贾传荧；

【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】 作为新一代卫星导航与定位系统，GPS以其全球性、实时性、全天候连续、快速、高精度的导航／定位／授时功能，为确定移动目标的地理位置和空间轨迹行业带来了一场革命。利用GPS载波相位技术对载体进行定向和测姿的研究开辟了又一个新的GPS应用研究领域。 本文对GPS姿态测量技术进行了研究，论证了GPS姿态测量系统的可行性，并详细推导了姿态解算的数学模型。 针对海上船舶的动态特性，本文提出了船舶姿态测量系统的实施方案，对可能影响测量精度的各类误差源进行了分析。 整周模糊度的解算和周跳检测与修复是GPS姿态测量系统的两大关键技术。为缩短模糊度搜索时间，提高模糊度解算的正确率，本文引入了LAMBDA法解算整周模糊度；为实现动态条件下载波相位观测的周跳检测与修复，引入了“基于冗余双差观测的周跳检测与修复”的方法。 Motorola UT+OEM接收机是美国Motorola公司生产的Oncore系列接收机的一种。本文采用两块Motorola UT+OEM板，在Windows95／NT平台下，利用MicrosoftVisual C++串口编程技术，进行了船舶姿态测量系统的软件设计，通过对试验数据的后处理能获取载体的二维姿态(航向角和俯仰角)，并通过试验验证了系统的性能。 论文的最后列举了在理论和工程上尚需做进一步研究和完善的一些问题。更多还原

【Abstract】 The research on attitude determination by GPS carrier phase measurement explores a new area in GPS application.This dissertation studies the theory of GPS-based attitude determination. The feasibility of GPS-based attitude determination system is tested and the algorithm on attitude determination is deducted in detail.Based on the nature of moving ships on the sea, this study proposed the way to measure ship’s attitude. Various factors which might influence the measurement’s accuracy are also analyzed.The GPS carrier phase integer ambiguity solution and cycle-slip detection are the two key technologies for GPS-based attitude determination system. To shorten the time of the solution of integer ambiguity and improve its validity, the LAMBDA algorithm is introduced. The method of "Detection and Fixing of Cycle-slip Using Redundant Double Difference Observations" is applied to realize the detection and fixing of cycle-slip under dynamic conditions.Using two Motorola UT+ OEMs, this study develops a software on Ship’s Attitude Determination System by Microsoft Visual C++ using Windows95/NT to realize the inspection of ship’s true course and roll. Experiments are conducted to validate the system’s performance.At last, some problems in theory or project which still need further studying are pointed out.更多还原