2020
DOI: 10.3390/s20174917
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Robust Fault Estimation Using the Intermediate Observer: Application to the Quadcopter

Abstract: In this paper, an actuator fault estimation technique is proposed for quadcopters under uncertainties. In previous studies, matching conditions were required for the observer design, but they were found to be complex for solving linear matrix inequalities (LMIs). To overcome these limitations, in this study, an improved intermediate estimator algorithm was applied to the quadcopter model, which can be used to estimate actuator faults and system states. The system stability was validated using Lyapunov theory. … Show more

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Cited by 13 publications
(12 citation statements)
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“…x y z . The nonlinear dynamic equations of the quadcopter in presence of disturbances and uncertainties can be expressed as follows [33,34]…”
Section: Mathematical Model Of Quadcoptermentioning
confidence: 99%
“…x y z . The nonlinear dynamic equations of the quadcopter in presence of disturbances and uncertainties can be expressed as follows [33,34]…”
Section: Mathematical Model Of Quadcoptermentioning
confidence: 99%
“…The sensor fault interferes with the stability of the system and affects the judgment of the operator, which may lead to fault. Therefore, it is very important to diagnose process faults and sensor faults in modern industrial processes [ 7 , 8 , 9 ].…”
Section: Introductionmentioning
confidence: 99%
“…U NMANNED aerial vehicles UAVs have become increasingly popular in recent years. Aerial images and videos captured by UAVs are widely utilized in various fields, such as surveillance [1], [2], forest and agriculture monitoring [3], [4], weather forecasting [5], and geographic mapping [6].…”
Section: Introductionmentioning
confidence: 99%