摘要
水下GPS定位精度受到各种因素的影响,为得到精确的定位数据,需要分析各因素与定位误差的关系。文中介绍了水下GPS定位的系统组成和定位原理,详细分析了影响定位误差的各种因素,如基线长度、目标方位、浮标基元阵型、浮标姿态以及斜距和浮标坐标的误差等。通过仿真分析得出了各因素对定位精度的影响程度以及浮标姿态对坐标修正量的影响程度,对减小和消除误差的方法进行了探讨,对提高水下GPS定位精度有一定借鉴意义。
Positioning precision of the underwater GPS is influenced by various factors. In order to obtain accurate positioning data, the relationship between each factor and positioning error need to be analyzed. The paper presents system composition and positioning principle of underwater GPS positioning, and analyzes various factors that affect the positioning error, such as baseline length, target location, position and attitude of the buoys, and the errors of buoys＂ coordinates and slant range, etc. It is obtained by means of simulation analysis that the influence of the above factors on the positioning error. Methods to reduce and eliminate the error are discussed, which should have reference value in improving the precision of underwater GPS positioning
出处
《电子设计工程》
2013年第11期46-49,共4页
Electronic Design Engineering
关键词
水下GPS定位
浮标姿态
误差分析
姿态修正
underwater GPS positioning
buoy＇s attitude
error analysis
attitude correction
