Abstract Aimed at solving the problem of quasi-geoid controlled by linear or strip of GPS-leveling points, Coons surface interpolation model is put forward. The first step is to synthesize GPS-leveling points fitting curve, and then the curve is used to construct the surface, as far as possible to reduce the traditional fitting method by point directly on the accuracy of consumption. Respectively, using the least squares method, least square collocation method, moving interpolation and Coons surface method to fit quasi-geoid controlled by linear or strip of GPS-leveling points, the result showed that the interpolation model based on Coons surface algorithm accuracy is the highest.
Key words :
linear
GPS leveling
quasi-geoid
Coons surface
Cite this article:
LI Feng,ZHANG Shuhong,WANG Hongfei et al. Quasi-Geoid Refinement Algorithm Based on Coons Surface[J]. jgg, 2016, 36(12): 1109-1111.
LI Feng,ZHANG Shuhong,WANG Hongfei et al. Quasi-Geoid Refinement Algorithm Based on Coons Surface[J]. jgg, 2016, 36(12): 1109-1111.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2016/V36/I12/1109
[1]
LI Mingfei,WU Junchao,QIN Chuan. Analysis and Comparison of Local Quasi Geoid Refinement Model Based on Remove-Restore Method [J]. jgg, 2020, 40(9): 952-956.
[2]
DONG Mingxu,LI Jiancheng,HUA Liangchun,JIANG Weiping,YIN Haohua,AO Minsi,ZENG Xiangqiang. Hunan 2017 GNSS Gravity Quasi-Geoid Model and Its Precision Analysis [J]. jgg, 2019, 39(1): 66-71.
[3]
LI Jun,OUYANG Mingda,LI Qi. Refinement of Regional Quasi-Geoid Using the EGM2008+DTM2006.0 Model [J]. jgg, 2018, 38(3): 244-248.
[4]
. [J]. jgg, 2016, 36(增1): 61-.
[5]
ZHAI Changzhi,YAO Yibin,YUE Shun. Geoid Refinement Method Based on the Regional EGM2008
and the Remaining Terrain Model [J]. jgg, 2015, 35(6): 941-944.
[6]
Xu Xinqiang, Zhao Dejun,Lou Nan. A GEOID TO QUASIGEOID SEPARATION CONSIDERING
SECOND ORDER HEIGHT TERMS [J]. jgg, 2013, 33(5): 75-78.
[7]
Guo Chunxi;Nie Jianliang;Wang Bin;and Jiang Guangwei. METHODS FOR FITTING LOCAL QUASIGEOID AND THEIR APPLICABILITY ANALYSIS [J]. , 2013, 33(1): 103-107.
[8]
Peng Xiangguo;Wan Xianbin;and Wang Hailong. RESEARCH ON REFINEMENT OF REGIONAL QUASI-GEOID OF POYANG LAKE [J]. , 2013, 33(1): 150-152.
[9]
Chen Chuanfa. GRID-BASED DEM CONSTRUCTION BY MEANS OF COONS PATCH [J]. , 2012, 32(4): 87-89.
[10]
Zhang Xingfu;and Wei Dehong. INTERPOLATION METHODS AND ACCURACY ANALYSIS BASED ON GRID QUASIGEOID MODEL [J]. , 2011, 31(1): 113-116.
[11]
Wang Jigang;;Hu Yonghui;and Kong Lingjie. COMBINED REGIONAL GPS HEIGHT CONVERSION MODEL BASED
ON LEAST SQUARES SUPPORT VECTOR MACHINES [J]. , 2009, 29(5): 99-102.
[12]
Deng Biao ;Hong Shaoming ;and Song Lei . REFINING OF CENTIMETER-PRECISE LOCAL QUASI-GEOID [J]. , 2009, 29(3): 125-127.
[13]
Li Chunhua;Huang Dingfa ;Luo Zhicai ;and Deng Fang . REFINEMENT AND APPLICATION OF CHENGDU QUASI-GEOID [J]. , 2009, 29(1): 83-87.
[14]
Yao Jili ;Qu Guoqing ;Liu Keli ;and Gao Peng . RESEARCH ON ACCURACY OF QUASIGEOID WITH FITTING METHODS UNDER DIFFERENT DISTRIBUTION OF GPS POINTS [J]. , 2008, 28(5): 50-54.