摘要
为了降低小型船舶安装导航设备的成本,设计了GPS航向仪,通过GARMIN GPS-12、Ashtech Z-Xtreme GPS两种型号5台GPS进行同时观测,共得到1 500组观测数据,并对这些数据进行计算分析,分别得到两种型号GPS的实测航向,以验证航海型GPS用作航向指向系统的可行性。结果表明:航海型差分GPS的航向为141.4114°,航海型GPS航向的最大偏差为3.6227°。表明GPS航向仪完全可以满足航海上的需要。
Total 1500 groups of survey data were obtained through the simultaneous observation of two navigational type GPS＇s and three measurement type DGPS＇s at the identical testing point and these data were analyzed, leading to the actual course of the two types of GPS＇s, which can be used to verify whether it is feasible for navigational type GPS as a course indicator. From calculation it can conclude that the average course of navigational type GPS is 140. 4114°, and the maximum deviation of its course is 3. 62271°; that the average course of measurement type DGPS is 141. 2193°, and the maximum deviation of its course is 1. 2155°.
出处
《大连水产学院学报》
CSCD
北大核心
2009年第4期339-342,共4页
Journal of Dalian Fisheries University
关键词
航向仪
观测
GPS
精度
indicator
measurement
GPS
precision
