Mustefa  Jibril, Messay  Tadese, Eliyas  Alemayehu Tadese, 
    Body Travel Performance Improvement of Space Vehicle Electromagnetic Suspension System
using LQG and LQI Control Methods,
    Journal of Engineering and Applied Sciences,
    Volume 16,Issue 9,
    2021,
    Pages 273-277,
    ISSN 1816-949x,
    jeasci.2021.273.277,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2021.273.277)
    Abstract: Electromagnetic Suspension System (EMS) is
mostly used in the field of high-speed vehicle. In this
study, a space exploring vehicle quarter electromagnetic
suspension system is modelled, designed and simulated
using linear quadratic optimal control problem. Linear
quadratic Gaussian and linear quadratic integral
controllers are designed to improve the body travel of the
vehicle using bump road profile. Comparison between the
proposed controllers is done and a promising simulation
result have been analyzed.
    Keywords: Electromagnetic suspension system;linear quadratic Gaussian;linear quadratic integral