An Efficient Nonlinear Filter for Spacecraft Attitude Estimation
Increasing the computational efficiency of attitude estimation is a critical problem related to modern spacecraft, especially for those with limited computing resources. In this paper, a computationally efficient nonlinear attitude estimation strategy based on the vector observations is proposed. Th...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2014/540235 |
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| author | Bing Liu Zhen Chen Xiangdong Liu Fan Yang |
| author_facet | Bing Liu Zhen Chen Xiangdong Liu Fan Yang |
| author_sort | Bing Liu |
| collection | DOAJ |
| description | Increasing the computational efficiency of attitude estimation is a critical problem related to modern spacecraft, especially for those with limited computing resources. In this paper, a computationally efficient nonlinear attitude estimation strategy based on the vector observations is proposed. The Rodrigues parameter is chosen as the local error attitude parameter, to maintain the normalization constraint for the quaternion in the global estimator. The proposed attitude estimator is performed in four stages. First, the local attitude estimation error system is described by a polytopic linear model. Then the local error attitude estimator is designed with constant coefficients based on the robust H2 filtering algorithm. Subsequently, the attitude predictions and the local error attitude estimations are calculated by a gyro based model and the local error attitude estimator. Finally, the attitude estimations are updated by the predicted attitude with the local error attitude estimations. Since the local error attitude estimator is with constant coefficients, it does not need to calculate the matrix inversion for the filter gain matrix or update the Jacobian matrixes online to obtain the local error attitude estimations. As a result, the computational complexity of the proposed attitude estimator reduces significantly. Simulation results demonstrate the efficiency of the proposed attitude estimation strategy. |
| format | Article |
| id | doaj-art-2c766f9c7b534eeaab50fccbb0bf55a7 |
| institution | OA Journals |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-2c766f9c7b534eeaab50fccbb0bf55a72025-08-20T02:24:14ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742014-01-01201410.1155/2014/540235540235An Efficient Nonlinear Filter for Spacecraft Attitude EstimationBing Liu0Zhen Chen1Xiangdong Liu2Fan Yang3School of Automation, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Automation, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Automation, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Automation, Beijing Institute of Technology, Beijing 100081, ChinaIncreasing the computational efficiency of attitude estimation is a critical problem related to modern spacecraft, especially for those with limited computing resources. In this paper, a computationally efficient nonlinear attitude estimation strategy based on the vector observations is proposed. The Rodrigues parameter is chosen as the local error attitude parameter, to maintain the normalization constraint for the quaternion in the global estimator. The proposed attitude estimator is performed in four stages. First, the local attitude estimation error system is described by a polytopic linear model. Then the local error attitude estimator is designed with constant coefficients based on the robust H2 filtering algorithm. Subsequently, the attitude predictions and the local error attitude estimations are calculated by a gyro based model and the local error attitude estimator. Finally, the attitude estimations are updated by the predicted attitude with the local error attitude estimations. Since the local error attitude estimator is with constant coefficients, it does not need to calculate the matrix inversion for the filter gain matrix or update the Jacobian matrixes online to obtain the local error attitude estimations. As a result, the computational complexity of the proposed attitude estimator reduces significantly. Simulation results demonstrate the efficiency of the proposed attitude estimation strategy.http://dx.doi.org/10.1155/2014/540235 |
| spellingShingle | Bing Liu Zhen Chen Xiangdong Liu Fan Yang An Efficient Nonlinear Filter for Spacecraft Attitude Estimation International Journal of Aerospace Engineering |
| title | An Efficient Nonlinear Filter for Spacecraft Attitude Estimation |
| title_full | An Efficient Nonlinear Filter for Spacecraft Attitude Estimation |
| title_fullStr | An Efficient Nonlinear Filter for Spacecraft Attitude Estimation |
| title_full_unstemmed | An Efficient Nonlinear Filter for Spacecraft Attitude Estimation |
| title_short | An Efficient Nonlinear Filter for Spacecraft Attitude Estimation |
| title_sort | efficient nonlinear filter for spacecraft attitude estimation |
| url | http://dx.doi.org/10.1155/2014/540235 |
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