电波科学学报2025，Vol.40Issue(4)：680-695,783,17.DOI:10.12265/j.cjors.2025053
GNSS电离层TEC反演方法综述
A review of GNSS ionospheric TEC derivation methodologies
摘要
Abstract
Total electron content(TEC)of the ionosphere is a critical parameter affecting the performance of radio systems.Leveraging the advantage of Global Navigation Satellite System(GNSS)with the global coverage and real-time capabilities,GNSS-TEC has become a vital tool for ionospheric observation and research,though its accuracy remains constrained by challenges such as hardware biases and the ionospheric spatiotemporal complexity.Based on ionospheric radio wave propagation theory,this paper elaborates on the fundamental principles of GNSS-TEC derivation,systematically categorizes common derivation methodologies,and reveals that its core lies in the synergistic optimization of ionospheric model assumptions,mathematical modeling between ionospheric TEC and GNSS observables,and solution algorithms.By analyzing the characteristics of GNSS-TEC retrieval methods across different periods,this study identifies that advancements in GNSS-TEC inversion methods are jointly driven by scientific demands,engineering applications,GNSS technological evolution,and computational power enhancement.Finally,the paper provides prospects for future trends in the development of GNSS-TEC derivation techniques.关键词
GNSS/电离层总电子含量(TEC)/单/双层模型/硬件偏差/数学建模/球谐函数/卡尔曼滤波Key words
Global Navigation Satellite System(GNSS)/ionospheric total electron content(TEC)/single/double-shell model/hardware bias/mathematical model/spherical harmonic function/Kalman filter分类
天文与地球科学引用本文复制引用
马冠一..GNSS电离层TEC反演方法综述[J].电波科学学报,2025,40(4):680-695,783,17.基金项目
国家自然科学基金(12273062,12473095) （12273062,12473095）
中国科学院-日本学术振兴会协议项目(178GJHZ2023180MI) （178GJHZ2023180MI）
