Ionospheric Total Electron Content Estimation Using GNSS Carrier Phase Observations Based on Zero-Difference Integer Ambiguity: Methodology and Assessment

• Published in: IEEE transactions on geoscience and remote sensing Vol. 59; no. 1; pp. 817 - 830
• Main Authors: Ren, Xiaodong, Chen, Jun, Li, Xingxing, Zhang, Xiaohong
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.01.2021; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Accuracy; Algorithms; Ambiguity; Delays; Experiments; Global navigation satellite system; Integer ambiguity; Integers; Ionosphere; Mathematical models; Methods; precise point positioning (PPP); Receivers; Reliability; Satellite broadcasting; Satellite observation; Satellites; Total Electron Content; total electron content (TEC)

Precise extraction of ionospheric total electron content (TEC) observations with high precision is the precondition for establishing high-precision ionospheric TEC models. Nowadays, there are several ways to extract TEC observations, e.g., raw-code method (Raw-C), phase-leveled code method (PL-C), a...