A5088478710- GNSS positioning and interference
- Inertial Sensor and Navigation
- Geophysics and Gravity Measurements
- Space Satellite Systems and Control
- Ionosphere and magnetosphere dynamics
- Spacecraft Design and Technology
- Underwater Vehicles and Communication Systems
- Indoor and Outdoor Localization Technologies
Beijing Satellite Navigation Center
2021-2024
China Electronics Technology Group Corporation
2022
Starting from February 2023, the International Laser Ranging Service (ILRS) began releasing satellite laser ranging (SLR) data for all BeiDou global navigation system (BDS-3) medium earth orbit (MEO) satellites. SLR serve as best external reference validating orbits, providing a basis comprehensive evaluation of BDS-3 orbit. We utilized to May 2023 comprehensively evaluate orbits MEO satellites different analysis centers (ACs). The results show that, whether during eclipse season or yaw...
Abstract Data processing of the Global Navigation Satellite System using uncombined (UC) observations has been a hot topic in recent years. However, computation complexity and time consumption UC approach is much higher than those linear combination approach. Concerning this issue, we propose three-step by combining ionosphere-free (IF) observation model network scheme to reduce complexity. The first two steps are based on IF detect cycle slips gross errors preprocess post-fit residual...
With the development of Low Earth Orbit (LEO) communication constellations, it has become a hot area research to provide additional navigation augmentation services. Limited by volume, weight, power consumption, and running time, in-flight performance payload remains be investigated. In this paper, we analyze data quality on-board GNSS observation evaluate precision short-arc dynamic Precise Determination (POD) based on WangTong-01 (WT01) mission. Furthermore, downlink measurement WT01...
In recent years, the multi-GNSS positioning application is becoming more and popular, same to low Earth orbit (LEO) satellite precise determination (POD) based on onboard measurements. The third-generation Beidou navigation system (BDS-3) provides a new option obtain LEO solutions. However, receiver intersystem bias (ISB) of different GNSS unavoidable in data processing. This paper’s main goal absorption impact ISB between BDS-3 BDS-2 POD. Taking GPS-based POD solutions for reference orbit,...