基于GPS的某型舰船姿态测量算法和天线布局研究  

Research on GPS-based attitude measurement algorithm and antenna layout of a ship

作　　者：孙海文[1] 欧阳中辉[1] 杜亚杰[1] 

机构地区：[1]海军航空工程学院兵器科学与技术系,山东烟台264001

出　　处：《现代电子技术》2015年第14期42-44,47,共4页Modern Electronics Technique

摘　　要：利用载波相位GPS在舰船上进行GPS接收机布局设计和测姿实施过程中,如何快速求解出姿态角和布局GPS接收机来提高测量精度是当前研究的热点。在此采用直接法计算出舰船的姿态角,进一步通过分析基线长度研究GPS接收机的布局与舰船姿态测量精度的关系。首先介绍舰船测姿的基本概念及各坐标系之间的关系;然后通过直接法分析推导出测量航向角的模型,建立基线长度对测量精度的影响,从而得到基线越长,测角精度越高的结论。通过仿真试验进行验证,该结论为架设GPS接收机提高测角精度提供了参考依据。How to quickly solve the attitude angle and the layout of GPS receiver to improve the measuring accuracy is a hotspot of current research while receiver layout and attitude measurement is conducted by means of carrier phase GPS on ship. The direct method is used in this paper to calculate the ship attitude angle and further study the relationship between the GPS re-ceiver layout and attitude measuring accuracy of ship through analysis of baseline length. The basic concept of ship pose mea-surement and the relationship between the coordinate systems are introduced. The model to measure the course angle was de-duced with the direct method and the influence of baseline length on the measuring accuracy was derived. A conclusion that the longer the baseline length is,the angle measuring accuracy is higher is obtained. The conclusion was verified by simulation test. This conclusion provides the reference basis for erection of the GPS receiver and improvement of angle measuring accuracy.

关 键 词：姿态测量 直接法 测量精度 基线长度 

分 类 号：TN98-34[电子电信—信息与通信工程]