<
>
<
>
Prof. Junping Chen serves as the president of the International Association of Chinese Professionals in Global Navigation Satellite Systems (CPGNSS), starting from Jan. 2025
2024 Nov 8-10, Ph.D. students Ruyuan Wang, Hongyu Zhu, and Siyi Xu each gave a presentation at the National Doctoral Student Academic Forum (Surveying and Mapping Science and Technology)((全国博士生学术论坛（测绘科学与技术）), held in Zhuhai, China.
2024 Sep 3, the project "University-Institute Collaboration, Innovation-Driven Empowerment: Exploration and Practice of Talent Cultivation in Satellite Navigation and Positioning" led by team member Yize Zhang has won the second prize in the 2024 Satellite Navigation and Positioning Excellence in Teaching Achievement Awards. (团队成员张益泽的“校所协同，创新赋能”的卫星导航定位人才培养探索与实践项目获得2024年卫星导航定位优秀教学成果奖二等奖。)
2024 August 23, Group head Junping Chen's project "Research on Enhanced
Pseudosatellite Positioning Accuracy under Weak Geometric Configurations"
was granted funding from the National Natural Science Foundation of China
General Program, while Group member Yize Zhang's project "Real-time UPD
Estimation and Orbit Precision Enhancement for China Regional Network based
on BeiDou PPP-B2b Service" received funding from the National Natural
Science Foundation of China Youth Science
Fund.(团队成员陈俊平的“弱几何构型伪卫星定位精度提升方法研究”项目获得国家自然科学基金委面上项目资助，团队成员张益泽的“基于北斗PPP-B2b服务的中国区域网实时UPD估计及轨道精度提升”项目获得国家自然科学基金委青年科学基金资助。)
2024 July 27, during the 2024 CPGNSS Forum in Beijing, Junping Chen delivered a keynote presentation on "Key Technologies for Precise Positioning in the BeiDou Navigation System". Yize Zhang presented a report titled "Real-time Generation of Inter-frequency Satellite Clock Bias Products, Message Broadcast, and Positioning Services". Bin Wang discussed "Advances in the Application of Earth Dynamics in High-Precision Time-Frequency Transfer." Wenjie Tang shared insights on the "Improved Pseudosatellite Tropospheric Delay Model Based on NWM Ray Tracing and Its Performance Evaluation."
2024 July 1-5, Group member Yize Zhang attend the IGS workshop 2024 held in the University of Bern. Yize Zhang gave a poster " URA and STD index for real-time orbit/clock/phase bias corrections at Shanghai Astronomical Observatory" .
Shanghai Astronomical Observatory (SHAO) has long history in research of Astronomy and Geodesy. The Center for Astro-geodynamics Research (UCAR) engages in measurement and analysis of the motion of the Earth and underlying dynamical mechanisms using the modern space techniques, including space Geodesy and astronomy. We operate a core site (SHAO) with co-location of VLBI,SLR and GNSS equipments in the supporting the GGOS geodetic core network. We maintained the analysis centers for VLBI, SLR and GNSS.
SHAO hosts the Central Bureau of the Asia-Pacific Space Geodynamics (APSG) program, which unites all relevant activities in the Asia-Pacific region into a cooperative research project in plate tectonic, crustal motion and deformation, and sea level changes.
SHAO is the current one of collaborative coordinators in the establishment of the Crustal Movement Observation Network of China (CMONOC), which includes ~260 GNSS fiducial sites and ~2000 GNSS campaign sites.
The Group of GNSS Data Analysis and Applications at SHAO was established early 2011. Routine GNSS data analysis using global GNSS network together the CMONOC network has been established since then. The products have been utilized and acknowledged in many key space programs of China.
Our main activities are:
The GNSS data analysis at SHA is the
integrated GNSS solution [Presentation at IGS Bias Workshop 2012] with products presented in the same ITRF reference frames. All satellite clocks are in the same defined time frame as GPS with a sampling of 30 seconds. Time offsets among GNSS systems are monitored.A citation is acknowledged when using the SHA products in your research and applications:
Junping Chen, Bin Wu, Xiaogong Hu, et al. (2012), SHA: the GNSS Analysis Center at SHAO, in Lecture Notes in Electrical Engineering, v 160 LNEE, p 213-221, 2012, Proceedings - 3rd China Satellite Navigation Conference, CSNC 2012
Junping Chen, Yize Zhang, Xuhua Zhou, et al. GNSS Clock Corrections Densification at SHAO: from 5 minutes to 30 seconds. SCIENCE CHINA Physics, Mechanics & Astronomy,57(1),pp.166-175,2014.
30 Mar. 2019, originator Prof.
Junping Chen