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515 Results Found

  • Article
  • Open Access
3 Citations
6,030 Views
11 Pages

Improving GLONASS Precise Orbit Determination through Data Connection

  • Yang Liu,
  • Maorong Ge,
  • Chuang Shi,
  • Yidong Lou,
  • Jens Wickert and
  • Harald Schuh

2 December 2015

In order to improve the precision of GLONASS orbits, this paper presents a method to connect the data segments of a single station-satellite pair to increase the observation continuity and, consequently, the strength of the precise orbit determinatio...

  • Article
  • Open Access
2,747 Views
13 Pages

Precise Orbit Determination of MEX Flyby Phobos Using Simulated Radiometric and Image Data

  • Xinbo Zhu,
  • Lu Liu,
  • Suyan Liu,
  • Pan Xie,
  • Wutong Gao and
  • Jianguo Yan

8 January 2021

A navigation camera or topography camera is a standard payload for deep space missions and the image data are normally used for auto-navigation. In this work, we study the potential contribution of image data in precise orbit determination for deep s...

  • Technical Note
  • Open Access
1 Citations
1,780 Views
15 Pages

Precise Orbit Determination for Maneuvering HY2D Using Onboard GNSS Data

  • Kexin Xu,
  • Xuhua Zhou,
  • Kai Li,
  • Xiaomei Wang,
  • Hailong Peng and
  • Feng Gao

1 July 2024

The Haiyang-2D (HY2D) satellite is the fourth ocean dynamics environment monitoring satellite launched by China. The satellite operates on a re-entry frozen orbit, which necessitates orbital maneuvers to maintain its designated path once the satellit...

  • Article
  • Open Access
9 Citations
6,034 Views
14 Pages

Precise Orbit Solution for Swarm Using Space-Borne GPS Data and Optimized Pseudo-Stochastic Pulses

  • Bingbing Zhang,
  • Zhengtao Wang,
  • Lv Zhou,
  • Jiandi Feng,
  • Yaodong Qiu and
  • Fupeng Li

20 March 2017

Swarm is a European Space Agency (ESA) project that was launched on 22 November 2013, which consists of three Swarm satellites. Swarm precise orbits are essential to the success of the above project. This study investigates how well Swarm zero-differ...

  • Article
  • Open Access
1 Citations
1,588 Views
19 Pages

10 April 2024

Haiyang-2A (HY-2A) is the first marine dynamic environment satellite established by China, which has made significant contributions to the marine scientific research field. It carries the satellite-based GPS receiver named HY2, which was independentl...

  • Article
  • Open Access
7 Citations
3,620 Views
15 Pages

Analysis of Precise Orbit Determination for the HY2D Satellite Using Onboard GPS/BDS Observations

  • Hailong Peng,
  • Chongchong Zhou,
  • Shiming Zhong,
  • Bibo Peng,
  • Xuhua Zhou,
  • Haoming Yan,
  • Jie Zhang,
  • Jinyang Han,
  • Fengcheng Guo and
  • Runjing Chen

13 March 2022

High-precision orbits of Low Earth Orbit (LEO) satellites are essential for many scientific applications, such as assessing the change in current global mean sea level, estimating the coefficients of gravity field, and so on. How to determinate the h...

  • Article
  • Open Access
7 Citations
2,928 Views
13 Pages

Atmospheric Density Response to a Severe Magnetic Storm Detected by the 520 km Altitude Spherical Satellite

  • Xinyue Wang,
  • Yujiao Jin,
  • Xiangguang Meng,
  • Dan Du,
  • Aibing Zhang,
  • Xinchun Tang,
  • Feng Yan,
  • Yueqiang Sun,
  • Xianguo Zhang and
  • Bowen Wang
  • + 1 author

12 November 2022

The polar-orbiting spherical experimental satellite of China for atmospheric density detection with an altitude of ~520 km was successfully launched on 14 October 2021. Based on the dynamic inversion method for atmospheric density and the precise orb...

  • Article
  • Open Access
7 Citations
3,811 Views
22 Pages

On Satellite-Borne GPS Data Quality and Reduced-Dynamic Precise Orbit Determination of HY-2C: A Case of Orbit Validation with Onboard DORIS Data

  • Hengyang Guo,
  • Jinyun Guo,
  • Zhouming Yang,
  • Guangzhe Wang,
  • Linhu Qi,
  • Mingsen Lin,
  • Hailong Peng and
  • Bing Ji

28 October 2021

Haiyang-2C (HY-2C) is a dynamic, marine-monitoring satellite that was launched by China and is equipped with an onboard dual-frequency GPS receiver named HY2_Receiver, which was independently developed in China. HY-2C was successfully launched on 21...

  • Article
  • Open Access
8 Citations
3,246 Views
17 Pages

Validating Precise Orbit Determination from Satellite-Borne GPS Data of Haiyang-2D

  • Jinyun Guo,
  • Guangzhe Wang,
  • Hengyang Guo,
  • Mingsen Lin,
  • Hailong Peng,
  • Xiaotao Chang and
  • Yingming Jiang

21 May 2022

Haiyang-2D (HY-2D) is the fourth satellite in the marine dynamic satellite series established by China. It was successfully launched on 19 May 2021, marking the era of the 3-satellite network in the marine dynamic environment satellite series of Chin...

  • Article
  • Open Access
3 Citations
2,887 Views
15 Pages

Analysis of Space-Borne GPS Data Quality and Evaluation of Precise Orbit Determination for COSMIC-2 Mission Based on Reduced Dynamic Method

  • Qiaoli Kong,
  • Yanfei Chen,
  • Wenhao Fang,
  • Guangzhe Wang,
  • Changsong Li,
  • Tianfa Wang,
  • Qi Bai and
  • Jingwei Han

24 July 2022

COSMIC-2 is a remote sensing satellite mission that mainly provides scientific data for weather forecasting, ionosphere, and climate research. High precise orbit is the basis for the application of remote sensing satellite data. In order to realize t...

  • Review
  • Open Access
3 Citations
1,291 Views
17 Pages

Comprehensive Analysis of HY-2B/2C/2D Satellite-Borne GPS Data Quality and Reduced-Dynamic Precise Orbit Determination

  • Xin Jin,
  • Guangzhe Wang,
  • Jinyun Guo,
  • Hailong Peng,
  • Yongjun Jia and
  • Xiaotao Chang

30 January 2025

The deployment of the HY-2B/2C/2D satellite constellation marks a significant advancement in China’s marine dynamic environmental satellite program, forming a robust three-satellite network. All satellites are equipped with the “HY2_Recei...

  • Technical Note
  • Open Access
1 Citations
3,944 Views
15 Pages

14 October 2021

The quality of Gravity Recovery and Climate Experiment (GRACE) observation is the prerequisite for obtaining the high-precision GRACE temporal gravity field model. To study the influence of new-generation GRACE Level-1B Release 03 (RL03) data and the...

  • Article
  • Open Access
1 Citations
2,912 Views
17 Pages

7 August 2022

Currently, there are more Global Navigation Satellite System (GNSS) signals available for civilians. Many types of GNSS receivers have been updated and several new receivers have been developed for new signals. To know about the performance of these...

  • Article
  • Open Access
6 Citations
3,349 Views
16 Pages

18 June 2019

Multipath error is a main error source in Global Navigation Satellite System (GNSS) data processing, which cannot be removed by a differential technique because of the strong relationship with the environment around the station. The multipath effect...

  • Article
  • Open Access
7 Citations
4,701 Views
20 Pages

Precise Orbit Determination for BeiDou GEO/IGSO Satellites during Orbit Maneuvering with Pseudo-Stochastic Pulses

  • Zhiwei Qin,
  • Guanwen Huang,
  • Qin Zhang,
  • Le Wang,
  • Xingyuan Yan,
  • Shichao Xie,
  • Yu Cao and
  • Xiaolei Wang

4 November 2019

In order to provide better service for the Asia-Pacific region, the BeiDou navigation satellite system (BDS) is designed as a constellation containing medium earth orbit (MEO), geostationary earth orbit (GEO), and inclined geosynchronous orbit (IGSO)...

  • Article
  • Open Access
18 Citations
6,483 Views
18 Pages

Improving Low Earth Orbit (LEO) Prediction with Accelerometer Data

  • Haibo Ge,
  • Bofeng Li,
  • Maorong Ge,
  • Liangwei Nie and
  • Harald Schuh

17 May 2020

Low Earth Orbit (LEO) satellites have been widely used in scientific fields or commercial applications in recent decades. The demands of the real time scientific research or real time applications require real time precise LEO orbits. Usually, the pr...

  • Article
  • Open Access
12 Citations
3,152 Views
17 Pages

Precise Orbit Determination and Maneuver Assessment for TH-2 Satellites Using Spaceborne GPS and BDS2 Observations

  • Houzhe Zhang,
  • Defeng Gu,
  • Bing Ju,
  • Kai Shao,
  • Bin Yi,
  • Xiaojun Duan and
  • Zhiyong Huang

9 December 2021

The TH-2 satellite system, including the TH-2A and TH-2B, is the first distributed interferometric synthetic aperture radar (InSAR) satellite system in China. During the in-orbit operation, the TH-2A satellite should perform three maneuvers per day t...

  • Article
  • Open Access
2 Citations
2,547 Views
17 Pages

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

  • Zhiwei Qin,
  • Qin Zhang,
  • Guanwen Huang,
  • Longjiang Tang,
  • Jungang Wang and
  • Xiaolei Wang

13 May 2023

The orbit maneuver detection is crucial in Global Navigation Satellite System (GNSS) precise orbit determination, which is necessary for adjusting data processing strategies. The frequency of orbit maneuvers for the BeiDou Navigation System is signif...

  • Article
  • Open Access
13 Citations
5,366 Views
17 Pages

1 March 2018

The emerging BeiDou navigation satellite system has contributed to global precise positioning and has recently moved toward space-borne applications. However, the contribution of BeiDou on LEO orbit determination applications is limited by the poor p...

  • Article
  • Open Access
5 Citations
2,698 Views
20 Pages

18 January 2023

The BeiDou Global Navigation Satellite System (BDS), including the second generation (BDS-2) and the third generation (BDS-3), has been widely used in areas of positioning, navigation, and timing (PNT). One of the essential prerequisites for accurate...

  • Article
  • Open Access
2 Citations
3,174 Views
16 Pages

8 June 2020

At present, Global Position System (GPS) navigation ephemeris mainly broadcasts satellite orbits with meter-level precision for standard point positioning and precise relative positioning. With the rapid development of real-time precise point positio...

  • Article
  • Open Access
7 Citations
4,169 Views
17 Pages

Precise Orbit Determination and Accuracy Analysis for BDS-3 Satellites Using SLR Observations

  • Zicong An,
  • Kai Shao,
  • Defeng Gu,
  • Chunbo Wei,
  • Zheyu Xu,
  • Lisheng Tong,
  • Jubo Zhu,
  • Jian Wang and
  • Daoping Liu

29 March 2023

Satellite laser ranging (SLR) is the space geodetic technique with the highest degree of range, measuring precision and distances right down to the millimeter level. Thanks to the improvement of SLR station layouts and the advance of SLR technology,...

  • Article
  • Open Access
28 Citations
4,818 Views
17 Pages

Centimeter-Level Precise Orbit Determination for the Luojia-1A Satellite Using BeiDou Observations

  • Lei Wang,
  • Beizhen Xu,
  • Wenju Fu,
  • Ruizhi Chen,
  • Tao Li,
  • Yi Han and
  • Haitao Zhou

26 June 2020

Luojia-1A is a scientific experimental satellite operated by Wuhan University, which is the first low earth orbiter (LEO) navigation signal augmentation experimental satellite. The precise orbit is the prerequisite of augmenting existing Global Navig...

  • Article
  • Open Access
15 Citations
7,088 Views
21 Pages

Optical Tracking Data Validation and Orbit Estimation for Sparse Observations of Satellites by the OWL-Net

  • Jin Choi,
  • Jung Hyun Jo,
  • Hong-Suh Yim,
  • Eun-Jung Choi,
  • Sungki Cho and
  • Jang-Hyun Park

7 June 2018

An Optical Wide-field patroL-Network (OWL-Net) has been developed for maintaining Korean low Earth orbit (LEO) satellites’ orbital ephemeris. The OWL-Net consists of five optical tracking stations. Brightness signals of reflected sunlight of th...

  • Article
  • Open Access
18 Citations
6,798 Views
20 Pages

5 January 2018

In 2015, the plan for global coverage by the Chinese BeiDou Navigation Satellite System was launched. Five global BeiDou experimental satellites (BeiDou-3e) are in orbit for testing. To analyze the performances of precise orbit determination (POD) an...

  • Article
  • Open Access
6 Citations
3,314 Views
17 Pages

New Orbit Determination Method for GEO Satellites Based on BeiDou Short-Message Communication Ranging

  • Xiaojie Li,
  • Rui Guo,
  • Jianbing Chen,
  • Shuai Liu,
  • Zhiqiao Chang,
  • Jie Xin,
  • Jinglei Guo and
  • Yijun Tian

15 September 2022

The radio determination service system (RDSS), a navigation and positioning system independently developed by China, features services such as short-message communication, position reporting, and international search and rescue. The L-band pseudo-ran...

  • Article
  • Open Access
1 Citations
2,131 Views
14 Pages

Impacts of Arc Length and ECOM Solar Radiation Pressure Models on BDS-3 Orbit Prediction

  • Ran Li,
  • Chunmei Zhao,
  • Jiatong Wu,
  • Hongyang Ma,
  • Yang Zhang,
  • Guang Yang,
  • Hong Yuan and
  • Hongyu Zhao

16 August 2022

The BeiDou global navigation satellite system (BDS-3) has already provided worldwide navigation and positioning services for which the high-precision BDS-3-predicting orbit is the foundation. The arc length of the observed orbits and the solar radiat...

  • Article
  • Open Access
1 Citations
1,049 Views
19 Pages

Research on the Autonomous Orbit Determination of Beidou-3 Assisted by Satellite Laser Ranging Technology

  • Wei Xiao,
  • Zhengcheng Wu,
  • Zongnan Li,
  • Lei Fan,
  • Shiwei Guo and
  • Yilun Chen

8 July 2025

The Beidou Global System (BDS-3) innovatively achieves autonomous navigation using inter-satellite links (ISL) across the entire constellation, but it still faces challenges such as the limitations of the prior constraint orbital accuracy and the ove...

  • Article
  • Open Access
21 Citations
4,993 Views
9 Pages

1 January 2018

An in-orbit experiment was launched to evaluate the performance of the spaceborne high precision fiber optic gyroscopes (FOG). The three-axis in-orbit data of the FOG were analyzed using wavelet analysis method. Features of low frequency period terms...

  • Article
  • Open Access
5 Citations
3,429 Views
17 Pages

15 August 2020

The orbital maneuvers of the global navigation satellite system (GNSSs) have a significant influence on the performance of the precise positioning, navigation, and timing (PNT) services. Because the Chinese BeiDou Navigation Satellite System (BDS) ha...

  • Technical Note
  • Open Access
3 Citations
1,503 Views
12 Pages

Telescopic Network of Zhulong for Orbit Determination and Prediction of Space Objects

  • Xiangxu Lei,
  • Zhendi Lao,
  • Lei Liu,
  • Junyu Chen,
  • Luyuan Wang,
  • Shuai Jiang and
  • Min Li

22 June 2024

The increasing proliferation of space debris, intermittent space incidents, and the rapid emergence of massive LEO satellite constellations pose significant threats to satellites in orbit. Ground-based optical observations play a crucial role in spac...

  • Article
  • Open Access
85 Citations
12,934 Views
18 Pages

Experimental Study on the Precise Orbit Determination of the BeiDou Navigation Satellite System

  • Lina He,
  • Maorong Ge,
  • Jiexian Wang,
  • Jens Wickert and
  • Harald Schuh

1 March 2013

The regional service of the Chinese BeiDou satellite navigation system is now in operation with a constellation including five Geostationary Earth Orbit satellites (GEO), five Inclined Geosynchronous Orbit (IGSO) satellites and four Medium Earth Orbi...

  • Article
  • Open Access
1 Citations
1,613 Views
20 Pages

With the rapidly increasing number of satellites and orbital debris, collision avoidance and reentry prediction are very important for space situational awareness. A precise orbital prediction through orbit determination is crucial to enhance the spa...

  • Article
  • Open Access
2 Citations
3,715 Views
17 Pages

Analysis of the Impact of Atmospheric Models on the Orbit Prediction of Space Debris

  • Yigao Ding,
  • Zhenwei Li,
  • Chengzhi Liu,
  • Zhe Kang,
  • Mingguo Sun,
  • Jiannan Sun and
  • Long Chen

6 November 2023

Atmospheric drag is an important influencing factor in precise orbit determination and the prediction of low-orbit space debris. It has received widespread attention. Currently, calculating atmospheric drag mainly relies on different atmospheric dens...

  • Article
  • Open Access
17 Citations
4,056 Views
15 Pages

5 July 2021

Currently, low Earth orbit (LEO) satellites are attracting great attention in the navigation enhancement field because of their stronger navigation signal and faster elevation variation than medium Earth orbit (MEO) satellites. To meet the need for r...

  • Article
  • Open Access
4 Citations
5,094 Views
23 Pages

23 May 2023

Simulated raw data have become an essential tool for testing and assessing system parameters and imaging performance due to the high cost and limited availability of real raw data from spaceborne synthetic aperture radar (SAR). However, with increasi...

  • Article
  • Open Access
7 Citations
4,534 Views
14 Pages

Orbit Determination of Korean GEO Satellite Using Single SLR Sensor

  • Hyungjik Oh,
  • Eunseo Park,
  • Hyung-Chul Lim and
  • Chandeok Park

29 August 2018

Geostationary Earth Orbit (GEO)-Korea Multi-Purpose Satellite (KOMPSAT)-2B (GK-2B) is a Korean geostationary Earth orbit (GEO) satellite that is scheduled to be launched in 2020 for meteorological and ocean monitoring. While the primary orbit determi...

  • Article
  • Open Access
4 Citations
2,236 Views
20 Pages

15 June 2023

Accurately modeling the density of atmospheric mass is critical for orbit determination and prediction of space objects. Existing atmospheric mass density models (ADMs) have an accuracy of about 15%. Developing high-precision ADMs is a long-term goal...

  • Article
  • Open Access
6 Citations
4,139 Views
22 Pages

29 December 2018

The predicted parts of ultra-rapid orbits are important for (near) real-time Global Navigation Satellite System (GNSS) precise applications; and there is little research on GPS/GLONASS/BDS/Galileo/QZSS five-system ultra-rapid precise orbit determinat...

  • Article
  • Open Access
778 Views
22 Pages

Research on Sliding-Window Batch Processing Orbit Determination Algorithm for Satellite-to-Satellite Tracking

  • Yingjie Xu,
  • Xuan Feng,
  • Shuanglin Li,
  • Jinghui Pu,
  • Shixu Chen and
  • Wenbin Wang

In response to the increasing demand for high-precision navigation of satellites operating in the cislunar space, this study introduces an onboard orbit determination algorithm considering both convergence and computational efficiency, referred to as...

  • Article
  • Open Access
9 Citations
4,514 Views
14 Pages

A Method to Determine BeiDou GEO/IGSO Orbital Maneuver Time Periods

  • Zhiwei Qin,
  • Guanwen Huang,
  • Qin Zhang,
  • Le Wang,
  • Xingyuan Yan,
  • Yanchao Kang,
  • Xiaolei Wang and
  • Shichao Xie

13 June 2019

Because there are different types of BeiDou constellations with participating geostationary orbit (GEO) and inclined geosynchronous orbit (IGSO) satellites, the maneuvering frequency of BeiDou satellites is higher than that of other navigation system...

  • Article
  • Open Access
14 Citations
4,356 Views
20 Pages

17 July 2021

The accuracy of the atmospheric mass density is one of the most important factors affecting the orbital precision of spacecraft at low Earth orbits (LEO). Although there are a number of empirical density models available to use in the orbit determina...

  • Article
  • Open Access
8 Citations
4,114 Views
14 Pages

21 July 2019

Earth’s gravity field recovery from GPS observations collected by low earth orbiting (LEO) satellites is a well-established technique, and kinematic orbits are commonly used for that purpose. Nowadays, more and more satellites are flying in clo...

  • Article
  • Open Access
1 Citations
2,068 Views
20 Pages

18 April 2025

Precise point positioning ambiguity resolution (PPP-AR) is a key technique for high-precision global navigation satellite system (GNSS) observations, with phase bias products playing a critical role in its implementation. The multi-GNSS experiment an...

  • Article
  • Open Access
902 Views
21 Pages

LEO ISL-Assisted BDS-3 and LEO Rapid Joint Precise Orbit Determination

  • Le Wang,
  • Dandan Song,
  • Wen Lai,
  • Bobin Cui and
  • Guanwen Huang

17 September 2025

BDS-3 faces challenges in achieving precision orbit determination (POD) due to the difficulty of establishing a globally uniform distribution of independently operated ground tracking stations. The use of onboard BDS-3 observations collected by low E...

  • Article
  • Open Access
6 Citations
3,166 Views
17 Pages

Tsinghua Scientific Satellite Precise Orbit Determination Using Onboard GNSS Observations with Antenna Center Modeling

  • Kai Shao,
  • Chunbo Wei,
  • Defeng Gu,
  • Zhaokui Wang,
  • Kai Wang,
  • Yingkai Cai and
  • Dachen Peng

21 May 2022

The Tsinghua scientific satellite is a Chinese spherical micro satellite for Earth gravity and atmospheric scientific measurements. The accurate orbits of this satellite are the prerequisites to satisfy the mission objectives. A commercial off-the-sh...

  • Article
  • Open Access
1,235 Views
18 Pages

Autonomous Orbit Determination of LLO Satellite Using DRO–LLO Links and Lunar Laser Ranging

  • Shixu Chen,
  • Shuanglin Li,
  • Jinghui Pu,
  • Yingjie Xu and
  • Wenbin Wang

A stable and high-precision autonomous orbit determination scheme for a Low Lunar Orbit (LLO) spacecraft is proposed, leveraging satellite-to-satellite tracking (SST) measurement data and lunar laser ranging data. One satellite orbits around the LLO,...

  • Article
  • Open Access
5 Citations
3,032 Views
18 Pages

Prediction of BeiDou Satellite Orbit Maneuvers to Improve the Reliability of Real-Time Navigation Products

  • Zhiwei Qin,
  • Le Wang,
  • Guanwen Huang,
  • Qin Zhang,
  • Xingyuan Yan,
  • Shichao Xie,
  • Haonan She,
  • Fan Yue and
  • Xiaolei Wang

9 February 2021

The positioning, navigation, and timing (PNT) service of the Global Navigation Satellite System (GNSS) is developing in the direction of real time and high precision. However, there are some problems that restrict the development of real-time and hig...

  • Article
  • Open Access
5 Citations
3,271 Views
20 Pages

On-Orbit Autonomous Geometric Calibration of Directional Polarimetric Camera

  • Guangfeng Xiang,
  • Binghuan Meng,
  • Bihai Tu,
  • Xuefeng Lei,
  • Tingrui Sheng,
  • Lin Han,
  • Donggen Luo and
  • Jin Hong

12 September 2022

The Directional Polarimetric Camera (DPC) carried by the Chinese GaoFen-5-02 (GF-5-02) satellite has the ability for multiangle, multispectral, and polarization detection and will play an important role in the inversion of atmospheric aerosol and clo...

  • Article
  • Open Access
6 Citations
4,741 Views
13 Pages

Relativistic Effects on Satellite–Ground Two–Way Precise Time Synchronization

  • Yanming Guo,
  • Yan Bai,
  • Shuaihe Gao,
  • Zhibing Pan,
  • Zibin Han,
  • Decai Zou,
  • Xiaochun Lu and
  • Shougang Zhang

15 October 2021

An ultrahigh precise clock (space optical clock) will be installed onboard a low-orbit spacecraft (a usual expression for a low-orbit satellite operating on an orbit at an altitude of less than 1000 km) in the future, which will be expected to obtain...

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