A New Adaptive System for Suppression of Transient Wind Disturbance in Large Antennas
Under transient wind disturbance, vibration deformation of the large antenna surface profile causes deterioration of pointing performance. This paper presents a new adaptive system to suppress unknown transient wind disturbance. First, to monitor the vibration, based on the acceleration measurement...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2019/2015341 |
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| _version_ | 1832563799695032320 |
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| author | Wei Liang Jin Huang Jie Zhang |
| author_facet | Wei Liang Jin Huang Jie Zhang |
| author_sort | Wei Liang |
| collection | DOAJ |
| description | Under transient wind disturbance, vibration deformation of the large antenna surface profile causes deterioration of pointing performance. This paper presents a new adaptive system to suppress unknown transient wind disturbance. First, to monitor the vibration, based on the acceleration measurement and a low-order flexible model considering equivalent identification of forces, the real-time estimation of the vibration state is obtained in an unbiased minimum-variance way. Next, a novel four-cable-actuator mechanism with a circular slide track is proposed for suppressing the vibration, in which the locations of the cable drivers on the slide track are determined according to the attitude of the antenna, and the expected tension distribution of the cables is found by the vibration state and the optimal gain of the linear quadratic regulator (LQR). In the end, the simulation implementation of a 7.3 m antenna under the transient wind disturbance is used to verify the effectiveness of the proposed method. |
| format | Article |
| id | doaj-art-bb928fb6f4c64f9394a4f3410fc8b58e |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-bb928fb6f4c64f9394a4f3410fc8b58e2025-02-03T01:12:36ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772019-01-01201910.1155/2019/20153412015341A New Adaptive System for Suppression of Transient Wind Disturbance in Large AntennasWei Liang0Jin Huang1Jie Zhang2Key Laboratory of Electronic Equipment Structure Design, Ministry of Education, Xidian University, Xi’an 710071, ChinaKey Laboratory of Electronic Equipment Structure Design, Ministry of Education, Xidian University, Xi’an 710071, ChinaKey Laboratory of Electronic Equipment Structure Design, Ministry of Education, Xidian University, Xi’an 710071, ChinaUnder transient wind disturbance, vibration deformation of the large antenna surface profile causes deterioration of pointing performance. This paper presents a new adaptive system to suppress unknown transient wind disturbance. First, to monitor the vibration, based on the acceleration measurement and a low-order flexible model considering equivalent identification of forces, the real-time estimation of the vibration state is obtained in an unbiased minimum-variance way. Next, a novel four-cable-actuator mechanism with a circular slide track is proposed for suppressing the vibration, in which the locations of the cable drivers on the slide track are determined according to the attitude of the antenna, and the expected tension distribution of the cables is found by the vibration state and the optimal gain of the linear quadratic regulator (LQR). In the end, the simulation implementation of a 7.3 m antenna under the transient wind disturbance is used to verify the effectiveness of the proposed method.http://dx.doi.org/10.1155/2019/2015341 |
| spellingShingle | Wei Liang Jin Huang Jie Zhang A New Adaptive System for Suppression of Transient Wind Disturbance in Large Antennas International Journal of Antennas and Propagation |
| title | A New Adaptive System for Suppression of Transient Wind Disturbance in Large Antennas |
| title_full | A New Adaptive System for Suppression of Transient Wind Disturbance in Large Antennas |
| title_fullStr | A New Adaptive System for Suppression of Transient Wind Disturbance in Large Antennas |
| title_full_unstemmed | A New Adaptive System for Suppression of Transient Wind Disturbance in Large Antennas |
| title_short | A New Adaptive System for Suppression of Transient Wind Disturbance in Large Antennas |
| title_sort | new adaptive system for suppression of transient wind disturbance in large antennas |
| url | http://dx.doi.org/10.1155/2019/2015341 |
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