Results 11 to 20 of about 2,623 (148)

Improving multi-GNSS ultra-rapid orbit determination for real-time precise point positioning

Journal of Geodesy, 2018
Currently, with the rapid development of multi-constellation Global Navigation Satellite Systems (GNSS), the real-time positioning and navigation are undergoing dramatic changes with potential for a better performance. To provide more precise and reliable ultra-rapid orbits is critical for multi-GNSS real-time positioning, especially for the three ...
Xingxing Li, Xinghan Chen, Maorong Ge, Harald Schuh   +3 more
openaire   +6 more sources

Zero-Reconvergence PPP for Real-Time Low-Earth Satellite Orbit Determination in Case of Data Interruption

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
With the fast development of low earth orbit (LEO) enhanced global navigation satellite system (LeGNSS), there is huge demand in LEO real-time precise orbit determination.
Haibo Ge, Guanlong Meng, Bofeng Li
doaj   +3 more sources

Real-Time Kinematic Precise Orbit Determination for LEO Satellites Using Zero-Differenced Ambiguity Resolution [PDF]

Remote Sensing, 2019
The rapid growing number of earth observation missions and commercial low-earth-orbit (LEO) constellation plans have provided a strong motivation to get accurate LEO satellite position and velocity information in real time. This paper is devoted to improve the real-time kinematic LEO orbits through fixing the zero-differenced (ZD) ambiguities of ...
Xingxing Li, Jiaqi Wu, Keke Zhang, Xin Li, Yun Xiong, Qian Zhang   +5 more
openaire   +3 more sources

Real-Time Orbit Determination of Micro–Nano Satellite Using Robust Adaptive Filtering [PDF]

Sensors
Low-performing GPS receivers, often used in challenging scenarios such as attitude maneuver and attitude rotation, are frequently encountered for micro–nano satellites.
Jing Chen, Xiaojun Jin, Cong Hou, Likai Zhu, Zhaobin Xu, Zhonghe Jin   +5 more
doaj   +2 more sources

Real-Time Precise Orbit Determination of Low Earth Orbit Satellites Based on GPS and BDS-3 PPP B2b Service

Remote Sensing
This study investigates and verifies the feasibility of the precise point positioning (PPP)-B2b enhanced real-time (RT) precise orbit determination (POD) of low Earth orbit (LEO) satellites.
Yali Shi, Tianhe Xu, Min Li, Kai Wei, Shuai Wang, Dixing Wang   +5 more
doaj   +2 more sources

BDS Orbit Maneuver Detection Based on Epoch-Updated Orbits Estimated by SRIF

Remote Sensing, 2023
The orbit maneuver detection is crucial in Global Navigation Satellite System (GNSS) precise orbit determination, which is necessary for adjusting data processing strategies.
Zhiwei Qin, Qin Zhang, Guanwen Huang, Longjiang Tang, Jungang Wang, Xiaolei Wang   +5 more
doaj   +1 more source

TerraSAR-X precise orbit determination with real-time GPS ephemerides [PDF]

Advances in Space Research, 2012
Abstract For active and future Earth observation missions, the availability of near real-time precise orbit information is becoming more and more important. The latency and quality of precise orbit determination results is mainly driven by the availability of precise GPS ephemerides and clocks. In order to have high-quality GPS ephemerides and clocks
Wermuth, Martin, Hauschild, André, Montenbruck, Oliver, Kahle, Ralph   +3 more
openaire   +3 more sources

Multi-GNSS products and services at iGMAS Wuhan Innovation Application Center: strategy and evaluation

Satellite Navigation, 2022
Over the past years the International Global Navigation Satellite System (GNSS) Monitoring and Assessment System (iGMAS) Wuhan Innovation Application Center (IAC) dedicated to exploring the potential of multi-GNSS signals and providing a set of products ...
Xingxing Li, Qingyun Wang, Jiaqi Wu, Yongqiang Yuan, Yun Xiong, Xuewen Gong, Zhilu Wu   +6 more
doaj   +1 more source

Real-Time On-Orbit Estimation Method for Microthruster Thrust Based on High-Precision Orbit Determination

International Journal of Aerospace Engineering, 2021
In order to enable the micro-nanosatellites equipped with microthrusters to better complete various space applications, it is necessary to estimate the thrust performance of the microthrusters in real-time on orbit. This paper proposes a real-time on-orbit estimation method for microthrust based on high-precision orbit determination.
Qinglin Yang, Weijing Zhou, Hao Chang
openaire   +2 more sources

LEO Enhanced Global Navigation Satellite System (LeGNSS): progress, opportunities, and challenges

Geo-spatial Information Science, 2021
With the completion of Chinese BeiDou Navigation Satellite System (BDS), the world has begun to enjoy the Positioning, Navigation, and Timing (PNT) services of four Global Navigation Satellite Systems (GNSS).
Haibo Ge, Bofeng Li, Song Jia, Liangwei Nie, Tianhao Wu, Zhe Yang, Jingzhe Shang, Yanning Zheng, Maorong Ge   +8 more
doaj   +1 more source