Missile attitude control via a hybrid LQG-LTR-LQI control scheme with optimum weight selection

Saptarshi Das, Kaushik Halder

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a new strategy for missile attitude control using a hybridization of Linear Quadratic Gaussian (LQG), Loop Transfer Recovery (LTR), and Linear Quadratic Integral (LQI) control techniques. The LQG control design is carried out in two steps i.e. firstly applying Kalman filter for state estimation in noisy environment and then using the estimated states for an optimal state feedback control via Linear Quadratic Regulator (LQR). As further steps of performance improvement of the missile attitude control system, the LTR and LQI schemes are applied to increase the stability margins and guarantee set-point tracking performance respectively, while also preserving the optimality of the LQG. The weighting matrix (Q) and weighting factor (R) of LQG and the LTR fictitious noise coefficient (q) are tuned using Nelder-Mead Simplex optimization technique to make the closed-loop system act faster. Simulations are given to illustrate the validity of the proposed technique.
Original languageEnglish
Title of host publication2014 First International Conference on Automation, Control, Energy and Systems (ACES)
PublisherIEEE
Pages1-6
Number of pages6
ISBN (Electronic)978-1-4799-3894-0
DOIs
Publication statusPublished - 1 Feb 2014
Event1st International Conference on Automation, Control, Energy and Systems - Adisaptagram, India
Duration: 1 Feb 20142 Feb 2014

Conference

Conference1st International Conference on Automation, Control, Energy and Systems
Abbreviated titleACES 2014
Country/TerritoryIndia
CityAdisaptagram
Period1/02/142/02/14

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