The high-end forum on "Frontiers in Precision Geodesy and Positioning" was successfully held on the afternoon of April 18, 2026, as part of the Comprehensive Academic Annual Conference on Geodesy and Navigation 2026, which took place in Changsha, Hunan Province, from April 17 to 20.

The forum was organized by the State Key Laboratory of Precision Geodesy. It featured Academician Yuanxi Yang of the Chinese Academy of Sciences as the lead discussant, and was moderated by Jianghui Geng and Guangcai Li of the PRIDE Research Group.

Prof. Geng first reviewed the development of precision geodesy and positioning and proposed several forward-looking topics to stimulate discussion on the future direction of the field. More than ten experts and scholars from universities and research institutes across China delivered presentations. Topics ranged from active tectonic deformation monitoring and high-precision BDS positioning near mega hydropower stations, to PNT and remote sensing using signals of opportunity, deep Earth exploration, seismic rock mechanics, magneto telluric sounding, and GNSS-R sea surface altimetry. The presentations highlighted cutting-edge research and cross-disciplinary trends in precision geodesy.

Xinjian Shan, researcher at the Institute of Geology, China Earthquake Administration, presented on the application of modern geodesy in active tectonic deformation studies. 

Xiufeng He, professor at Hohai University, discussed challenges and prospects for high-precision BDS positioning in mega hydropower station environments. 

Wu Chen, professor at The Hong Kong Polytechnic University, explored the use of diverse signals of opportunity for PNT and remote sensing. 

Xiaodong Song, professor at Peking University, reported on deep Earth structure, dynamics, and layer coupling. 

Liyun Fu, professor at China University of Petroleum (East China), presented experimental advances in seismic rock mechanics under high temperature and pressure.

Xuben Wang, professor at Chengdu University of Technology, shared findings on deep electrical structures and dynamics beneath the southeastern margin of the Tibetan Plateau.

In addition, six early-career researchers also presented their latest work on GNSS-based disaster monitoring, water vapor remote sensing, tropospheric tomography, sea surface altimetry, downscaling of tropospheric products, and soil moisture monitoring.

Academician Yuanxi Yang provided in-depth commentary on the reports and engaged in lively discussions with the speakers and attendees. The forum facilitated extensive exchanges on key scientific questions and technical challenges in precision geodesy and positioning, generating a strong academic atmosphere. The successful forum provided a high-level platform for scholarly exchange. 

More than twenty faculty members from the PRIDE group attended the event. Bingchen Fu, Shuzhi Lyu, Yangyang Wang, Qingfeng Wu, Liang Zhong and Long Zhao delivered oral presentations or flash/poster presentations. Their topics were, in order: “On-orbit calibration of inter-frequency consistency for BeiDou-3 satellite all-frequency antenna phase center offsets within the IGS20 frame”，“Short-Arc undifferenced integer ambiguity validation based on XGBoost model”，“Performance assessment of the DOCB index in Wuhan university rapid products for cross-day boundary positioning”，“Aligning the Galileo code biases on the pilot and mixed signal channels to improve precise point positioning”，“Method for smartphone pseudorange smoothing using double-difference doppler considering reference satellite change”，“Methodology for wideband tracking and instantaneous decimeter-level positioning of subcarrier signals based on joint full-component processing”. These presentations demonstrated the innovative energy and academic potential of the group’s young scholars in the field.