Ashtech扼流圈天线相位中心稳定性的检验  

Examination of Ashtech Chock-Ring Antenna Phase Center

作　　者：胡亚轩[1] 

机构地区：[1]中国地震局第二地形变监测中心,陕西西安710054

出　　处：《测绘工程》2001年第3期44-46,共3页Engineering of Surveying and Mapping

摘　　要：接收机天线相位偏差是GPS定位中一项重要的误差源,其影响值可达数毫米至数厘米,为了解接收机天线性能及稳定性等方面的情况,在出测前后一般要对相位中心的稳定性进行检验。目前已采用两种方法对Ashtech扼流圈天线相位中心稳定性进行了测试,证明了AshtechZ-12型接收机天线满足限差要求及试验方法的可行性,本文将就此作具体介绍。Antenna phase deflection is one of important errors of the receiver equipment in GPS posi-tioning.The values are from several millimetres to few centimetres.To have a thorough understanding the capabilities,stablities and limitations,the GSP antennas must be examined before measuring as other surveying instruments.Two methods are used to examine the deviations.Good conclusions are gained by calculating and analyzing.These antennas are reliable and the methods are feasible.They are specifi-cally described.

关 键 词：相位偏差 限差 接收机 GPS 扼流圈天线 全球定位系统 相位中心 稳定性 

分 类 号：P228.4[天文地球—大地测量学与测量工程]