Title :
A Study on Accurate Same Beam Interferometry Differential Phase Delay Closure
Author :
Chen Shaowu ; Dong Guangliang ; Li Haitao ; Liu Qinghui ; Zheng Xin ; Chen Guanlei
Author_Institution :
Beijing Inst. of Tracking & Telecommun. Technol., Beijing, China
Abstract :
The model of same beam interferometry and the accuracy of the differential phase delay are analyzed for the requirement of the high precision ground based navigation and guidance in lunar orbit rendezvous and docking. The model of time delay closure of Very Long Baseline Interferometry is introduced, the accurate close differential time delay of Same Beam Interferometry is gained based on the definition of the same wave front SBI. The value of differential time delay closure is calculated by the observation data of the SELENE mission, the result shows that the precision of differential phase delay closure is in the range of 0.5-1picosecond. The model in this paper could evidently reduce the trend in differential time delay closure, it could be used for the real-time errors detection of observational data obtained by different baseline.
Keywords :
Moon; aerospace instrumentation; light interferometry; navigation; SELENE mission; accurate same beam interferometry differential phase delay closure; close differential time delay; differential time delay closure; high precision ground based navigation; lunar orbit docking; lunar orbit rendezvous; observational data; real-time errors detection; very long baseline interferometry; Data models; Delay; Delay effects; Market research; Moon; Orbits; Space vehicles; differential phase delay closure; high precise; lunar exploration; rendezvous and docking; same beam interferometry;
Conference_Titel :
Computer and Information Technology (CIT), 2012 IEEE 12th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-4873-7
DOI :
10.1109/CIT.2012.112
