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Monitoring motion and measuring relative position of the Chang'E‐3 rover
Author(s) -
Liu Qinghui,
Zheng Xin,
Huang Yong,
Li Peijia,
He Qingbao,
Wu Yajun,
Guo Li,
Tang Mingle
Publication year - 2014
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1002/2014rs005449
Subject(s) - geodesy , position (finance) , remote sensing , geology , random error , relative motion , interferometry , computer science , motion (physics) , physics , optics , computer vision , mathematics , statistics , finance , economics , mechanics
Abstract Same‐beam very long baseline interferometry observations were performed between the rover and the lander of Chang'E‐3 and differential phase delay data were obtained with the minimum random error of about 0.03 ps. These data were used to monitor the rover motions, as small as several centimeters, including movement, turning, and attitude adjustment. The relative position between the rover and the lander was precisely measured with an accuracy of 1 m, which is an improvement of 10 times compared with that of the Apollo project.