Title :
The novel method of data processing in position-differential system of the satellite navigation
Author :
Sun, Xiyan ; Shi, Huli ; Yin, Zhiqiang
Author_Institution :
Nat. Astron. Obs., Chinese Acad. of Sci., Beijing
Abstract :
In position-differential system of the satellite navigation, the position corrections are needed to be broadcast to user receiver for position correcting in real time. But there is a delay when the position corrections are calculated from reference receiver and then transmitted to the user receiver. In this paper, the authors put forwards a novel method, the recursive constraint least square, to solve this problem. There are periodical variations in positioning results of the reference receiver and user receiver from analysis of their results. Then the selection of correction quantities at each prediction will affect the differential results, and 30 correction quantities are selected by analyzing. The availability and efficiency of this method have been proved with practical experiments
Keywords :
least mean squares methods; position control; recursive estimation; satellite navigation; data processing; position corrections; position-differential system; recursive constraint least square; reference receiver; satellite navigation; user receiver; Clocks; Data processing; Delay; Error correction; Error correction codes; Extraterrestrial measurements; Observatories; Position measurement; Satellite broadcasting; Satellite navigation systems;
Conference_Titel :
Systems and Control in Aerospace and Astronautics, 2006. ISSCAA 2006. 1st International Symposium on
Conference_Location :
Harbin
Print_ISBN :
0-7803-9395-3
DOI :
10.1109/ISSCAA.2006.1627636
