Real-Time On-Orbit Estimation Method for Microthruster Thrust Based on High-Precision Orbit Determination
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...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/7733495 |
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| author | Qinglin Yang Weijing Zhou Hao Chang |
| author_facet | Qinglin Yang Weijing Zhou Hao Chang |
| author_sort | Qinglin Yang |
| collection | DOAJ |
| description | 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. By establishing a high-precision orbit dynamic model, the microthrust generated by a microthruster is modeled as a first-order Markov model, combined with a high-precision GNSS measuring device, and the satellite position is obtained through the cubature Kalman filter algorithm, velocity, and thrust real-time on-orbit estimates. For a thrust of 100 μN, the error accuracy of the on-orbit estimation is 3.98%; for a thrust of 500 μN, the error accuracy is 1.79%; for a thrust of 5 mN, the error accuracy can be reduced to 1.43%; and when the thrust is 500 μN, the accuracy of orbit determination is 16 cm. This method solves the problem that the traditional on-orbit thrust estimation method cannot perform real-time on-orbit estimation of microthrust on the order of hundreds of μN. The real-time on-orbit estimation of microthrust of micro-nanosatellites equipped with microthrusters of the order of hundreds of micronewtons or even several mN to tens of mN has certain reference value. |
| format | Article |
| id | doaj-art-759729e4f4594a8f9f2f0d48141fe0eb |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-759729e4f4594a8f9f2f0d48141fe0eb2025-02-03T07:24:11ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742021-01-01202110.1155/2021/77334957733495Real-Time On-Orbit Estimation Method for Microthruster Thrust Based on High-Precision Orbit DeterminationQinglin Yang0Weijing Zhou1Hao Chang2State Key Laboratory of Laser Propulsion & Application, Department of Aerospace and Technology, Space Engineering University, Beijing, ChinaState Key Laboratory of Laser Propulsion & Application, Department of Aerospace and Technology, Space Engineering University, Beijing, ChinaState Key Laboratory of Laser Propulsion & Application, Department of Aerospace and Technology, Space Engineering University, Beijing, ChinaIn 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. By establishing a high-precision orbit dynamic model, the microthrust generated by a microthruster is modeled as a first-order Markov model, combined with a high-precision GNSS measuring device, and the satellite position is obtained through the cubature Kalman filter algorithm, velocity, and thrust real-time on-orbit estimates. For a thrust of 100 μN, the error accuracy of the on-orbit estimation is 3.98%; for a thrust of 500 μN, the error accuracy is 1.79%; for a thrust of 5 mN, the error accuracy can be reduced to 1.43%; and when the thrust is 500 μN, the accuracy of orbit determination is 16 cm. This method solves the problem that the traditional on-orbit thrust estimation method cannot perform real-time on-orbit estimation of microthrust on the order of hundreds of μN. The real-time on-orbit estimation of microthrust of micro-nanosatellites equipped with microthrusters of the order of hundreds of micronewtons or even several mN to tens of mN has certain reference value.http://dx.doi.org/10.1155/2021/7733495 |
| spellingShingle | Qinglin Yang Weijing Zhou Hao Chang Real-Time On-Orbit Estimation Method for Microthruster Thrust Based on High-Precision Orbit Determination International Journal of Aerospace Engineering |
| title | Real-Time On-Orbit Estimation Method for Microthruster Thrust Based on High-Precision Orbit Determination |
| title_full | Real-Time On-Orbit Estimation Method for Microthruster Thrust Based on High-Precision Orbit Determination |
| title_fullStr | Real-Time On-Orbit Estimation Method for Microthruster Thrust Based on High-Precision Orbit Determination |
| title_full_unstemmed | Real-Time On-Orbit Estimation Method for Microthruster Thrust Based on High-Precision Orbit Determination |
| title_short | Real-Time On-Orbit Estimation Method for Microthruster Thrust Based on High-Precision Orbit Determination |
| title_sort | real time on orbit estimation method for microthruster thrust based on high precision orbit determination |
| url | http://dx.doi.org/10.1155/2021/7733495 |
| work_keys_str_mv | AT qinglinyang realtimeonorbitestimationmethodformicrothrusterthrustbasedonhighprecisionorbitdetermination AT weijingzhou realtimeonorbitestimationmethodformicrothrusterthrustbasedonhighprecisionorbitdetermination AT haochang realtimeonorbitestimationmethodformicrothrusterthrustbasedonhighprecisionorbitdetermination |