Virtual Dual-Loop Feedback Control with Model-Construction Linear Extended State Observer for Free Space Optical Communication
The stable alignment and transmission of free space optical communication (FSO) is susceptible to internal dynamics and external disturbances. In this paper, a virtual dual-loop feedback control (VDFC) with model-construction linear extended state observer (MCLESO), which is applied to the fast tip-...
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MDPI AG
2019-09-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/18/3846 |
| _version_ | 1811297937509056512 |
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| author | Kang Nie Wei Ren Xi Zhou Yao Mao |
| author_facet | Kang Nie Wei Ren Xi Zhou Yao Mao |
| author_sort | Kang Nie |
| collection | DOAJ |
| description | The stable alignment and transmission of free space optical communication (FSO) is susceptible to internal dynamics and external disturbances. In this paper, a virtual dual-loop feedback control (VDFC) with model-construction linear extended state observer (MCLESO), which is applied to the fast tip-tilt mirror platform to enhance the disturbance suppression ability (DSA) for FSO. MCLESO, which is modified on a classical linear extended state observer by introducing the available model information, is shown to use the input and output signal data of the system to observe total disturbances, including internal dynamics and external disturbance. Since the position and velocity signals are both observed only with the optoelectronic target detector and MCLESO, the controllers of the dual-loop feedback control (DFC) system are employed directly. This method has a more accurate control performance after model construction, which enhances the DSA of the tip-tilt mirror control system in low and medium frequency. It is also beneficial to miniaturization and cost saving by not using velocity sensors. Both simulations and experiments validate the effectiveness of the proposed method in the tip-tilt mirror control system under the condition of disturbance. |
| first_indexed | 2024-04-13T06:12:34Z |
| format | Article |
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| institution | Directory Open Access Journal |
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| language | English |
| last_indexed | 2024-04-13T06:12:34Z |
| publishDate | 2019-09-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj.art-63475f009b724aedb015ee65d925841c2022-12-22T02:58:58ZengMDPI AGSensors1424-82202019-09-011918384610.3390/s19183846s19183846Virtual Dual-Loop Feedback Control with Model-Construction Linear Extended State Observer for Free Space Optical CommunicationKang Nie0Wei Ren1Xi Zhou2Yao Mao3Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, ChinaKey Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, ChinaKey Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, ChinaKey Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, ChinaThe stable alignment and transmission of free space optical communication (FSO) is susceptible to internal dynamics and external disturbances. In this paper, a virtual dual-loop feedback control (VDFC) with model-construction linear extended state observer (MCLESO), which is applied to the fast tip-tilt mirror platform to enhance the disturbance suppression ability (DSA) for FSO. MCLESO, which is modified on a classical linear extended state observer by introducing the available model information, is shown to use the input and output signal data of the system to observe total disturbances, including internal dynamics and external disturbance. Since the position and velocity signals are both observed only with the optoelectronic target detector and MCLESO, the controllers of the dual-loop feedback control (DFC) system are employed directly. This method has a more accurate control performance after model construction, which enhances the DSA of the tip-tilt mirror control system in low and medium frequency. It is also beneficial to miniaturization and cost saving by not using velocity sensors. Both simulations and experiments validate the effectiveness of the proposed method in the tip-tilt mirror control system under the condition of disturbance.https://www.mdpi.com/1424-8220/19/18/3846free space optical communicationoptoelectronic target detectormodel-construction linear extended state observervirtual dual-loop feedback controltip-tilt mirrordisturbance suppression |
| spellingShingle | Kang Nie Wei Ren Xi Zhou Yao Mao Virtual Dual-Loop Feedback Control with Model-Construction Linear Extended State Observer for Free Space Optical Communication Sensors free space optical communication optoelectronic target detector model-construction linear extended state observer virtual dual-loop feedback control tip-tilt mirror disturbance suppression |
| title | Virtual Dual-Loop Feedback Control with Model-Construction Linear Extended State Observer for Free Space Optical Communication |
| title_full | Virtual Dual-Loop Feedback Control with Model-Construction Linear Extended State Observer for Free Space Optical Communication |
| title_fullStr | Virtual Dual-Loop Feedback Control with Model-Construction Linear Extended State Observer for Free Space Optical Communication |
| title_full_unstemmed | Virtual Dual-Loop Feedback Control with Model-Construction Linear Extended State Observer for Free Space Optical Communication |
| title_short | Virtual Dual-Loop Feedback Control with Model-Construction Linear Extended State Observer for Free Space Optical Communication |
| title_sort | virtual dual loop feedback control with model construction linear extended state observer for free space optical communication |
| topic | free space optical communication optoelectronic target detector model-construction linear extended state observer virtual dual-loop feedback control tip-tilt mirror disturbance suppression |
| url | https://www.mdpi.com/1424-8220/19/18/3846 |
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