东南大学学报（自然科学版）Issue(z2)：418-422,5.DOI:10.3969/j.issn.1001-0505.2013.S2.043
一种综合的对流层延迟模型算法
A comprehensive algorithm using fusion of tropospheric delay models
摘要
Abstract
In order to get rid of the restrictions of the actual measurement of the meteorological pa-rameters and improve the universality and efficiency of tropospheric delay correction models, three types of tropospheric delay correction models are introduced, which are the Saastamoinen model, the UNB3m(university of new brunswick 3 modified) model and the EGNOS(the European geo-station-ary navigation overlay system) model.The model algorithms and parameters are analyzed, and a comprehensive algorithm which is a fusion of the GPT( global pressure and temperature) model, the UNB3m model and the Saastamoinen model is put forward.In the proposed algorithm, the tempera-ture and pressure parameters estimated through the GPT model and the vapor pressure parameter esti-mated through the UMB3m model are used to calculate the zenith tropospheric delay through the Saastamoinen model.Though the proposed algorithm is equivalent in precision to the conventional models, it has a wider scope of application.The algorithm can precisely provide the priori value of the tropospheric delay in the circumstances where measured meteorological data are absent, so it is of practical engineering significance.关键词
GPT/UNB3m/Saastamoinen模型/对流层延迟模型Key words
GPT(global pressure and temperature)/UNB3m(university of new brunswick 3 modi-fied)/Saastamoinen model/tropospheric delay model分类
天文与地球科学引用本文复制引用
杨徉,喻国荣,潘树国,陈伟荣,汪登辉..一种综合的对流层延迟模型算法[J].东南大学学报（自然科学版）,2013,(z2):418-422,5.基金项目
国家自然科学基金资助项目（6522000013）． （）
