Spacecraft Angular Rates Estimation with Gyrowheel Based on Extended High Gain Observer
A gyrowheel (GW) is a kind of electronic electric-mechanical servo system, which can be applied to a spacecraft attitude control system (ACS) as both an actuator and a sensor simultaneously. In order to solve the problem of two-dimensional spacecraft angular rate sensing as a GW outputting three-dim...
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MDPI AG
2016-04-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/16/4/537 |
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| author | Xiaokun Liu Yu Yao Kemao Ma Hui Zhao Fenghua He |
| author_facet | Xiaokun Liu Yu Yao Kemao Ma Hui Zhao Fenghua He |
| author_sort | Xiaokun Liu |
| collection | DOAJ |
| description | A gyrowheel (GW) is a kind of electronic electric-mechanical servo system, which can be applied to a spacecraft attitude control system (ACS) as both an actuator and a sensor simultaneously. In order to solve the problem of two-dimensional spacecraft angular rate sensing as a GW outputting three-dimensional control torque, this paper proposed a method of an extended high gain observer (EHGO) with the derived GW mathematical model to implement the spacecraft angular rate estimation when the GW rotor is working at large angles. For this purpose, the GW dynamic equation is firstly derived with the second kind Lagrange method, and the relationship between the measurable and unmeasurable variables is built. Then, the EHGO is designed to estimate and calculate spacecraft angular rates with the GW, and the stability of the designed EHGO is proven by the Lyapunov function. Moreover, considering the engineering application, the effect of measurement noise in the tilt angle sensors on the estimation accuracy of the EHGO is analyzed. Finally, the numerical simulation is performed to illustrate the validity of the method proposed in this paper. |
| first_indexed | 2024-04-14T07:07:22Z |
| format | Article |
| id | doaj.art-abea472e2941493093932806fc0d1028 |
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| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T07:07:22Z |
| publishDate | 2016-04-01 |
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| series | Sensors |
| spelling | doaj.art-abea472e2941493093932806fc0d10282022-12-22T02:06:32ZengMDPI AGSensors1424-82202016-04-0116453710.3390/s16040537s16040537Spacecraft Angular Rates Estimation with Gyrowheel Based on Extended High Gain ObserverXiaokun Liu0Yu Yao1Kemao Ma2Hui Zhao3Fenghua He4School of Astronautics, Harbin Institute of Technology, No.2 Yikuang Street, Nangang District, Harbin 150080, ChinaSchool of Astronautics, Harbin Institute of Technology, No.2 Yikuang Street, Nangang District, Harbin 150080, ChinaSchool of Astronautics, Harbin Institute of Technology, No.2 Yikuang Street, Nangang District, Harbin 150080, ChinaSchool of Astronautics, Harbin Institute of Technology, No.2 Yikuang Street, Nangang District, Harbin 150080, ChinaSchool of Astronautics, Harbin Institute of Technology, No.2 Yikuang Street, Nangang District, Harbin 150080, ChinaA gyrowheel (GW) is a kind of electronic electric-mechanical servo system, which can be applied to a spacecraft attitude control system (ACS) as both an actuator and a sensor simultaneously. In order to solve the problem of two-dimensional spacecraft angular rate sensing as a GW outputting three-dimensional control torque, this paper proposed a method of an extended high gain observer (EHGO) with the derived GW mathematical model to implement the spacecraft angular rate estimation when the GW rotor is working at large angles. For this purpose, the GW dynamic equation is firstly derived with the second kind Lagrange method, and the relationship between the measurable and unmeasurable variables is built. Then, the EHGO is designed to estimate and calculate spacecraft angular rates with the GW, and the stability of the designed EHGO is proven by the Lyapunov function. Moreover, considering the engineering application, the effect of measurement noise in the tilt angle sensors on the estimation accuracy of the EHGO is analyzed. Finally, the numerical simulation is performed to illustrate the validity of the method proposed in this paper.http://www.mdpi.com/1424-8220/16/4/537gyrowheelangular rates estimationtorque outputextended high gain observerLyapunov stabilitymeasurement noise |
| spellingShingle | Xiaokun Liu Yu Yao Kemao Ma Hui Zhao Fenghua He Spacecraft Angular Rates Estimation with Gyrowheel Based on Extended High Gain Observer Sensors gyrowheel angular rates estimation torque output extended high gain observer Lyapunov stability measurement noise |
| title | Spacecraft Angular Rates Estimation with Gyrowheel Based on Extended High Gain Observer |
| title_full | Spacecraft Angular Rates Estimation with Gyrowheel Based on Extended High Gain Observer |
| title_fullStr | Spacecraft Angular Rates Estimation with Gyrowheel Based on Extended High Gain Observer |
| title_full_unstemmed | Spacecraft Angular Rates Estimation with Gyrowheel Based on Extended High Gain Observer |
| title_short | Spacecraft Angular Rates Estimation with Gyrowheel Based on Extended High Gain Observer |
| title_sort | spacecraft angular rates estimation with gyrowheel based on extended high gain observer |
| topic | gyrowheel angular rates estimation torque output extended high gain observer Lyapunov stability measurement noise |
| url | http://www.mdpi.com/1424-8220/16/4/537 |
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