东南大学学报（自然科学版）Issue(z2)：219-224,6.DOI:10.3969/j.issn.1001-0505.2013.S2.001
利用CORS进行格网化电离层TEC实时监测
Real-time monitoring of regionla ionospheric TEC based on CORS with grid technolgo y
摘要
Abstract
In order to achieve the real-time mo niot ring of regional ionosphere, the ionospheric tto al le ctron contetn ( TEC) is extracted rf om the dual-frequency measurements provided by the continu-ously operta in g reference stations ( COR S) .According to the stability of satellite and receive differ-ential code bias ( DCB) during a certain period, the real-time ionospheric TEC is calibratde by using differential code bai ses of the former day.Thus, the real-time multi-station polynomial TEC model can be established.Results show that the average internla and external accuracy of the model estab-lished by all th e seven referecn e stations can be better thna 0.8 TECU (1TECU=1016 electron/m2 ) when the average distance of the stations ra e ba uo t 250 km. Wiht the availability oft he ionospheric dle ay corrections calcul ated by the real-time model, ht e single precise point positioning ( PPP) point accuracy can reach 0.3 to 0.4 m, which improves 80% compared to the single PPP without iono-spheric delay corrections.As a result,the real-tim e TEC monitorign of a certain area can be achieved with the combination of the grid technology.关键词
电离层TEC/格网技术/实时监测Key words
ionospeh rci total electron content ( TEC)/grid technology/real-time moni toring分类
天文与地球科学引用本文复制引用
胡伍生,聂文锋,高成发..利用CORS进行格网化电离层TEC实时监测[J].东南大学学报（自然科学版）,2013,(z2):219-224,6.基金项目
国家自然科学基金资助项目（41274028），江苏省测绘科研基金资助项目（JSCHK Y201314）． （）
