Ting Ji, Yu Liu, Yawei Wang, Zhidong Liu, Lijun Zhou, Fei Liu, Song Li, Yixuan Kang, Qinglin Zhao, Kai Shi, Yuxin Gao, Xuetao Jia, Heng Lu
{"title":"Sliding mode control of photoelectric stabilized platform based on nonlinear tracking differentiator","authors":"Ting Ji, Yu Liu, Yawei Wang, Zhidong Liu, Lijun Zhou, Fei Liu, Song Li, Yixuan Kang, Qinglin Zhao, Kai Shi, Yuxin Gao, Xuetao Jia, Heng Lu","doi":"10.1117/12.3000057","DOIUrl":null,"url":null,"abstract":"In order to improve the anti-interference and tracking performance of photoelectric stabilized platform, a sliding mode controller based on reaching law was designed. Since the differential signal of the input was used in the sliding mode controller, if the noise was added in the input signal, its differential signal will amplify the noise, thus affecting the actual effect of the controller. To solve this problem, a method combining nonlinear Tracking Differentiator (TD) with sliding mode controller was proposed ,then the experimental system was built, and the results of the new controller and the traditional PID controller were compared. It is proved that the method this article presented can improve the anti-interference performance of the system by 66.7%, and also can increase the track precision of the input signal by 48.2%.","PeriodicalId":502341,"journal":{"name":"Applied Optics and Photonics China","volume":"81 ","pages":"1296306 - 1296306-6"},"PeriodicalIF":0.0000,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Optics and Photonics China","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.3000057","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In order to improve the anti-interference and tracking performance of photoelectric stabilized platform, a sliding mode controller based on reaching law was designed. Since the differential signal of the input was used in the sliding mode controller, if the noise was added in the input signal, its differential signal will amplify the noise, thus affecting the actual effect of the controller. To solve this problem, a method combining nonlinear Tracking Differentiator (TD) with sliding mode controller was proposed ,then the experimental system was built, and the results of the new controller and the traditional PID controller were compared. It is proved that the method this article presented can improve the anti-interference performance of the system by 66.7%, and also can increase the track precision of the input signal by 48.2%.
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