LEO Satellite Navigation Based on Optical Measurements of a Cooperative Constellation
Autonomous, anti-jamming, and high-precision satellite navigation are of great importance to current and future space technologies. This paper proposes a cooperative constellation navigation system for low Earth orbit (LEO) satellites that use only the optical measurements of cooperative satellites....
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/10/5/431 |
| _version_ | 1797818823364050944 |
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| author | Pei Chen Xuejian Mao Siyu Chen |
| author_facet | Pei Chen Xuejian Mao Siyu Chen |
| author_sort | Pei Chen |
| collection | DOAJ |
| description | Autonomous, anti-jamming, and high-precision satellite navigation are of great importance to current and future space technologies. This paper proposes a cooperative constellation navigation system for low Earth orbit (LEO) satellites that use only the optical measurements of cooperative satellites. Based on photometry, an optical transmission link model of the system is built. With the pixel coordinates of the cooperative satellites on the optical images, the line of sight (LoS) vectors of the cooperative satellites with respect to the LEO spacecraft are first calculated, and a single-point positioning method based on the LoS vectors’ inner products is proposed. The single-point positioning results are then fed into a least square batch filter to estimate a high-precision spacecraft orbit. Simulations are conducted to evaluate the potential navigation accuracy. With a cooperative satellite ephemeris error of 100 m and an optical measurement noise level of 5 arcsecs, position accuracies of single-point positioning and dynamic orbit determination in the order of hundreds of meters and eight meters, respectively, are realized. In addition, the influences of the orbital altitude of the cooperative constellation, the ephemeris error of the cooperative satellite, the noise level of the optical measurements, and the Earth’s gravitational model on navigation accuracy are investigated via comparative simulations. |
| first_indexed | 2024-03-13T09:13:46Z |
| format | Article |
| id | doaj.art-06eef5b649fa466784b3b44be09085f6 |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-13T09:13:46Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-06eef5b649fa466784b3b44be09085f62023-05-26T13:20:41ZengMDPI AGAerospace2226-43102023-05-011043143110.3390/aerospace10050431LEO Satellite Navigation Based on Optical Measurements of a Cooperative ConstellationPei Chen0Xuejian Mao1Siyu Chen2School of Astronautics, Beihang University, Beijing 100191, ChinaSchool of Astronautics, Beihang University, Beijing 100191, ChinaSchool of Astronautics, Beihang University, Beijing 100191, ChinaAutonomous, anti-jamming, and high-precision satellite navigation are of great importance to current and future space technologies. This paper proposes a cooperative constellation navigation system for low Earth orbit (LEO) satellites that use only the optical measurements of cooperative satellites. Based on photometry, an optical transmission link model of the system is built. With the pixel coordinates of the cooperative satellites on the optical images, the line of sight (LoS) vectors of the cooperative satellites with respect to the LEO spacecraft are first calculated, and a single-point positioning method based on the LoS vectors’ inner products is proposed. The single-point positioning results are then fed into a least square batch filter to estimate a high-precision spacecraft orbit. Simulations are conducted to evaluate the potential navigation accuracy. With a cooperative satellite ephemeris error of 100 m and an optical measurement noise level of 5 arcsecs, position accuracies of single-point positioning and dynamic orbit determination in the order of hundreds of meters and eight meters, respectively, are realized. In addition, the influences of the orbital altitude of the cooperative constellation, the ephemeris error of the cooperative satellite, the noise level of the optical measurements, and the Earth’s gravitational model on navigation accuracy are investigated via comparative simulations.https://www.mdpi.com/2226-4310/10/5/431cooperative constellation navigation systemoptical measurementsingle-point positioningleast square batch filter |
| spellingShingle | Pei Chen Xuejian Mao Siyu Chen LEO Satellite Navigation Based on Optical Measurements of a Cooperative Constellation Aerospace cooperative constellation navigation system optical measurement single-point positioning least square batch filter |
| title | LEO Satellite Navigation Based on Optical Measurements of a Cooperative Constellation |
| title_full | LEO Satellite Navigation Based on Optical Measurements of a Cooperative Constellation |
| title_fullStr | LEO Satellite Navigation Based on Optical Measurements of a Cooperative Constellation |
| title_full_unstemmed | LEO Satellite Navigation Based on Optical Measurements of a Cooperative Constellation |
| title_short | LEO Satellite Navigation Based on Optical Measurements of a Cooperative Constellation |
| title_sort | leo satellite navigation based on optical measurements of a cooperative constellation |
| topic | cooperative constellation navigation system optical measurement single-point positioning least square batch filter |
| url | https://www.mdpi.com/2226-4310/10/5/431 |
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