Reshma Susan Babu , Dr. U.P. Rajeev , R. Lethakumari
{"title":"基于平面度和动态反演的RLV混合制导算法","authors":"Reshma Susan Babu , Dr. U.P. Rajeev , R. Lethakumari","doi":"10.3182/20140313-3-IN-3024.00014","DOIUrl":null,"url":null,"abstract":"<div><p>A simplified guidance law suitable for onboard implementation is derived in this paper exploiting the flatness property of the translational dynamics of a reusable launch vehicle (RLV). A tracking law to follow a reference trajectory profile is formulated. Dynamic inversion helps cancel the undesired dynamics and replaces the inerent dynamics of the vehicle by desired dynamics. Simulation studies indicate the effectiveness of the tracking law in case of nominal and off-nominal conditions. The behaviour of the tracking law for perturbations in initial conditions, aerodynamic coefficients and for physical variations such as mass is analyzed.</p></div>","PeriodicalId":13260,"journal":{"name":"IFAC Proceedings Volumes","volume":"47 1","pages":"Pages 7-13"},"PeriodicalIF":0.0000,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3182/20140313-3-IN-3024.00014","citationCount":"1","resultStr":"{\"title\":\"Hybrid Guidance Algorithm using Flatness and Dynamic Inversion for RLV\",\"authors\":\"Reshma Susan Babu , Dr. U.P. Rajeev , R. Lethakumari\",\"doi\":\"10.3182/20140313-3-IN-3024.00014\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A simplified guidance law suitable for onboard implementation is derived in this paper exploiting the flatness property of the translational dynamics of a reusable launch vehicle (RLV). A tracking law to follow a reference trajectory profile is formulated. Dynamic inversion helps cancel the undesired dynamics and replaces the inerent dynamics of the vehicle by desired dynamics. Simulation studies indicate the effectiveness of the tracking law in case of nominal and off-nominal conditions. The behaviour of the tracking law for perturbations in initial conditions, aerodynamic coefficients and for physical variations such as mass is analyzed.</p></div>\",\"PeriodicalId\":13260,\"journal\":{\"name\":\"IFAC Proceedings Volumes\",\"volume\":\"47 1\",\"pages\":\"Pages 7-13\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.3182/20140313-3-IN-3024.00014\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IFAC Proceedings Volumes\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1474667016326283\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IFAC Proceedings Volumes","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1474667016326283","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Hybrid Guidance Algorithm using Flatness and Dynamic Inversion for RLV
A simplified guidance law suitable for onboard implementation is derived in this paper exploiting the flatness property of the translational dynamics of a reusable launch vehicle (RLV). A tracking law to follow a reference trajectory profile is formulated. Dynamic inversion helps cancel the undesired dynamics and replaces the inerent dynamics of the vehicle by desired dynamics. Simulation studies indicate the effectiveness of the tracking law in case of nominal and off-nominal conditions. The behaviour of the tracking law for perturbations in initial conditions, aerodynamic coefficients and for physical variations such as mass is analyzed.
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