Chengyi Liu

Papers

Total Citations

H-Index

About

Dr. Chengyi Liu is a leading researcher in satellite geodesy, with a primary focus on Global Navigation Satellite System (GNSS) antenna calibration and high-precision positioning. His most significant contribution lies in the critical analysis of antenna phase center correction (PCC) models—a cornerstone of sub-centimeter-level GNSS accuracy. In his highly cited 2022 work, Dr. Liu demonstrated that numerical discrepancies among PCC models from different institutes can reach several millimeters for the same antenna type, a variance far exceeding nominal calibration accuracy. To address this, he introduced a novel consistency evaluation method, providing the geodetic community with a rigorous framework to assess and reconcile these model differences. This work has profound implications for applications demanding extreme precision, such as tectonic plate monitoring and reference frame maintenance. With his research accumulating over a dozen citations in just a few years, Dr. Liu is establishing himself as a vital voice in ensuring the reliability and interoperability of global GNSS infrastructure, directly contributing to the robustness of modern geodetic science.