APPLICATION OF IGU EPHEMERIS TO MOUNTAIN-BASED GPS OBSCURATION PREDICTION
Feng Wei1） ;Jin Huihua1，2） ;Shao Jiani1） ; and Lin Xuefeng1）
1）61081 Troops，Beijing 100094 2）61892 Troops，Beijing 100094
Abstract The method in mountainbased obscuration prediction by using IGU ephemeris offered from IGS is introduced by using the broadcast ephemeris and IGU ephemeris to compute.The comparison between the computation results of the positions of sitellite shows that the latter’s accuracy is higher than the former by two magnitudes.The obscuration prediction differing from the obscuration observation is only 1 s in time and the positions of obscuration are the same.So we can forecast obscuration more exactly in this way.
Key words ：
mountainbased GPS
IGU ephemeris
obscuration prediction
positions of satellite
broadcast ephemeris
Received: 01 January 1900
Corresponding Authors:
Feng Wei
Cite this article:
Feng Wei,Jin Huihua, et al. APPLICATION OF IGU EPHEMERIS TO MOUNTAIN-BASED GPS OBSCURATION PREDICTION[J]. , 2009, 29(5): 129-131.
Feng Wei,Jin Huihua, et al. APPLICATION OF IGU EPHEMERIS TO MOUNTAIN-BASED GPS OBSCURATION PREDICTION[J]. jgg, 2009, 29(5): 129-131.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2009/V29/I5/129
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