深空探测学报Issue(3)：208-212,5.DOI:10.15982/j.issn.2095-7777.2015.03.003
高精度VLBI技术在深空探测中的应用
Application of High Precision VLBI Technology in Deep Space Exploration
摘要
Abstract
This paper reports the research progress of high precision VLBI technology used for single-spacecraft orbit determination and same beam VLBI technique used for multi-spacecraft position determination.The ΔDOR VLBI residual delay after determining orbit of Chang’e-3 Lander is 0.67 ns,and the error of differential phase delay between the Lander and Yutu rover of Chang’e-3 is down to 0.3 ps.By using the differential phase delay data,the rover motions such as movement and turning as small as several centimeters are monitored,and the relative position between the rover and the Lander is precisely measured with an accuracy of 1 meter.For deep space exploration, further research works are put forward to improve the VLBI delay measurement accuracy.关键词
高精度VLBI/同波束VLBI/深空探测/嫦娥3号Key words
high precision VLBI/same beam VLBI/deep space exploration/Chang’e-3分类
天文学引用本文复制引用
刘庆会,吴亚军..高精度VLBI技术在深空探测中的应用[J].深空探测学报,2015,(3):208-212,5.基金项目
国家自然科学基金资助项目(11273049,11473059) （11273049,11473059）
