较差VLBI测量及其应用  

Differential VLBI Survey and Its Applications

作　　者：罗时芳[1] 

机构地区：[1]中国科学院上海天文台

出　　处：《天文学进展》1990年第1期73-80,共8页Progress In Astronomy

摘　　要：较差VLBI测量用于观测方向相距很近的射电源,相对定位精度能达到亚毫角秒量级。本文介绍较差VLBI测量原理及其在天体测量和天体物理中的应用概况。The differential VLBI Survey is used to observe the radio sources which are very close each other in the same direction of space. By means of this new technique, the accuracy of relative positioning could be reached to submillarcsecond. In this paper, the basic principle of the differential VLBI Survey and its applications to astromctry and astrophysics are described.

关 键 词：VLBI 较差 群延迟 分量 互差 观测量 射电源 模糊度 天文技术 天体测量 观测历元 相对定位精度 基线长度 三角视差 

分 类 号：P1[天文地球—天文学]