NDLI: L1 adaptive control with proportional adaptation law

Content Provider	IEEE Xplore Digital Library
Author	Vanness, J. Kharisov, E. Hovakimyan, N.
Copyright Year	2012
Description	Author affiliation: UIUC, Urbana, IL, USA (Vanness, J.; Kharisov, E.; Hovakimyan, N.)
Abstract	This paper presents an $L_{1}$ adaptive state feedback controller with proportional adaptation law for a class of linear systems with input-gain uncertainties and unmatched nonlinear disturbances. The proportional adaptation law provides an adaptive estimate that is directly proportional to the error between the output of the system and the state predictor. One of the advantages of this new adaptation law is the additional phase margin in the estimation loop, which allows for modification of the state predictor towards accommodating first order sensor dynamics. An additional benefit is the reduction of the required computational resources, since the error bounds reduce at a rate directly proportional to the adaptation gain as compared to the square root of the adaptation gain achieved by the $L_{1}$ adaptive controllers using gradient descent adaptation laws. Simulations verify the theoretical findings.
Sponsorship	IEEE Control Syst. Soc.
Starting Page	1919
Ending Page	1924
File Size	356746
Page Count	6
File Format	PDF
ISBN	9781457710957
ISSN	07431619
e-ISBN	9781457710964
e-ISBN	9781467321020
DOI	10.1109/ACC.2012.6315660
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-27
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Adaptive control Stability analysis Estimation Uncertainty Transfer functions Transient analysis
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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