论文信息 - A Study on Accurate Same Beam Interferometry Differential Phase Delay Closure

A Study on Accurate Same Beam Interferometry Differential Phase Delay Closure

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.

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