CORRECTION OF INTERPOLATION FROM CALCULATION OF TROPOSPHERIC DELAY WITH MULTIPLE REGRESSIONS METHOD
Sun Xiao 1) ;Zhang Lihui 2) ; Wang Yong 3) ; and Yang Jing 4)
1)School of Civil Engineering, Central South University, Changsha 410083;2)College of Mining Engineering, Hebei United University, Tangshan 063009;3)Earthquake Engineering Research Center of Hebei Province, Tangshan 063009;4)Department of Water Project,hebei engineering and Technical College,Cangzhou 061001
Abstract：Seeing that the effect of the interpolation of tropospheric delay with available Kriging method is not good in undulating terrain areas,so the method of multiple regression to correct the errors of Kriging interpolation was proposed. The experiments,as example,taking the data of Southern California GPS network were carried out in different elevation areas. Among the equations of different correction factors, the equation including the factors of longitude, latitude and altitude has better effect than other equations. In the areas of elevation difference of no more than 500 meters, the accurcy with this method can reach to centimeters level, even milimeters level.
Sun Xiao ,Zhang Lihui ,Wang Yong et al. CORRECTION OF INTERPOLATION FROM CALCULATION OF TROPOSPHERIC DELAY WITH MULTIPLE REGRESSIONS METHOD[J]. jgg, 2012, 32(Supp.): 98-102.
