Core Viewpoint - The article highlights the successful development of a high-precision deformation monitoring technology using the BeiDou system, led by Ye Fei, which significantly improves monitoring accuracy for long-distance cross-sea bridges in complex environments, achieving a precision increase of 21.5% compared to traditional methods [3][5][15]. Group 1: Technology Development - Ye Fei's team developed a new method for millimeter-level displacement monitoring, overcoming challenges posed by ionospheric disturbances and multipath effects in low-latitude regions [5][6]. - The innovative "ionospheric flicker identification algorithm" was introduced, enhancing the BeiDou positioning model to filter out signal distortions caused by ionospheric disturbances, resulting in a data purity improvement [6][15]. - The monitoring system achieved a high correlation of 92% with displacement meter values, successfully capturing micro-deformations at a precision of 0.5 millimeters [6][15]. Group 2: Application and Impact - The technology provides real-time monitoring and early warning for potential safety risks in bridge structures, contributing to the longevity and safety of major infrastructure [5][6][15]. - The BeiDou high-precision positioning technology is positioned for large-scale application in various engineering fields, including bridges, dams, and geological disaster monitoring [6][15]. Group 3: Industry Challenges and Innovations - The BeiDou high-precision positioning technology faces challenges such as high terminal costs and difficulties in widespread adoption [8][9]. - Ye Fei's team developed a compact multi-source fusion positioning terminal, integrating PPP-RTK, INS, and UWB technologies, which adapts to complex environments and maintains centimeter-level positioning accuracy [9][10]. - This terminal supports various communication modes and is designed for applications in smart transportation and autonomous driving, marking a significant advancement in the industry [9][10]. Group 4: Team and Institutional Support - The research team at Hunan Provincial Surveying and Mapping Science Research Institute is predominantly composed of young professionals, with a significant number of achievements in the BeiDou high-precision positioning field [11][12]. - Ye Fei has been recognized as a high-level technology talent in Hunan Province, reflecting the strong institutional support for innovation and research in the region [12][14].