In this paper, the design of an interval observer with an adaptive dynamical gain is presented. The observer is formulated in the framework of robust state estimation of uncertain dynamical systems, where an interval that encloses the unknown state variables is provided. For a specific type of interval observer design, an optimal gain could provide the narrowest interval. Since this gain depend...

In this study, the challenges of controller design a class Uncertain Switched Neutral Systems (USNSs) in presence discrete, neutral, and time-varying delays are considered by using robust observer-based control technique. The cases where uncertainties normbounded emphasized research. adopted approach reduces prescribed level disturbance input on controlled output closed-loop form exponential st...

Information fusion from multiple sensors ensures the accuracy and robustness of a navigation system, especially in the absence of global positioning system (GPS) data which gets degraded in many cases. A way to deal with multi-mode estimation for a small fixed wing unmanned aerial vehicle (UAV) localization framework is proposed, which depends on utilizing a Luenberger observer-based linear mat...

In this thesis we address the problem of multi-robot localization with a heterogeneous team of low-cost mobile robots. The team consists of a single centralized “observer” with an inertial measurement unit (IMU) and monocular camera, and multiple “picket” robots with only IMUs and Red Green Blue (RGB) light emitting diodes (LED). This team cooperatively navigates a visually featureless environm...

Power-level control is a crucial technique for the safe, stable and efficient operation of modular high temperature gas-cooled nuclear reactors (MHTGRs), which have strong inherent safety features and high outlet temperatures. The current power-level controllers of the MHTGRs need measurements of both the nuclear power and the helium temperature, which cannot provide satisfactory control perfor...

AIM To assess the reproducibility of pelvic floor biometric parameters by translabial three-dimensional ultrasound compared with the OmniView® reformatting technique. MATERIAL AND METHODS We performed a cross-sectional study involving 47 nulliparous women without symptoms of pelvic floor dysfunction. The hiatal area and right pubovisceral muscle width measurements were performed in the axial ...

This paper contributes a technique that expands the set of object invariants that one can reason about in modular verification. The technique uses history invariants, two-state invariants that describe the evolution of data values. The technique enables a flexible new way to specify and verify variations of the observer pattern, including iterators. The paper details history invariants and the ...

This study investigates the observer-based sliding mode load frequency control for multiarea interconnected power systems under deception attack. By introducing observer and combining it with system state equation, expression of error is obtained. A surface proposed to make sure be stable. Then, equation derived. The asymptotic stability whole proved by using linear matrix inequality (LMI) tech...