The comparison between generalized polynomial and finite element in disturbing gravity approximation

被引：0

作者：

Jiang Dong ^{[1
]}

Wang Qing-bin ^{[1
]}

Zhao Dong-ming ^{[1
]}

Sun Wen ^{[1
]}

Zhou Rui ^{[1
]}

机构：

[1] Inst Surveying & Mapping, Zhengzhou 450052, Peoples R China

来源：

2011 INTERNATIONAL CONFERENCE ON FUZZY SYSTEMS AND NEURAL COMPUTING (FSNC 2011), VOL V | 2011年

关键词：

disturbing gravity; real-time approximation; finite element; generalized polynomial;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Generalized polynomial and finite element play an important role in real-time approximation of disturbing gravity above the Earth's surface. This paper studies issues like computing accuracy, speed and data storage, which determine the efficiency of approximation methods. The experiment results indicate that generalized polynomial method has an advantage of accuracy and speed over finite element method; at the same time, finite element method needs 1/4 disk space as much as that of generalized polynomial; in experimental area, the maximum error of generalized polynomial method is +/-1.57mgal, and standard deviation is +/-0.24mgal.

引用

页码：680 / 683

页数：4