摘要
由于天线本身的特性及机械加工等原因,GPS卫星和接收机天线相位中心与其几何中心不重合,从而产生相位中心偏差。某些类型的天线该偏差甚至可达数cm,直接影响高精度GPS测量的精确可靠性。IGS改正模型文件中给出的是每隔5°方位角和天顶角时的天线相位中心变化改正值,本文用VS程序设计通过线性内插算法获得任意方位角和天顶角下的相位中心变化改正值。
Due to the characteristics of the antenna itself and machining and other reasons,GPS satellite and receiver antenna phase center does not coincide with its geometric center,resulting in phase center variation.Certain types of antennas that deviation even up to several cm,directly affect the reliability of high-precision GPS measurement precision.IGS correct model file is given the antenna phase center corrections change every 5°azimuth and zenith when,the paper design obtained by linear interpolation algorithm phase center at any azimuth and zenith under the program with VS changes in corrections.
出处
《北京测绘》
2015年第4期96-99,共4页
Beijing Surveying and Mapping
关键词
接收机
相位中心偏差
内插算法
改正
VS
receiver
phase center variation
interpolation algorithm
corrections
VS
