A Continuous Reconstruction Observer for Sampled-Data Linear Time Varying Systems | Zendy

Rahat Ali | Zendy; Mohammad Bilal Malik | Zendy; Fahad Mumtaz Malik | Zendy; Atif Qayyum | Zendy

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A Continuous Reconstruction Observer for Sampled-Data Linear Time Varying Systems

Author(s) -

Rahat Ali,

Mohammad Bilal Malik,

Fahad Mumtaz Malik,

Atif Qayyum

Publication year - 2018

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2018.2789731

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

In this paper, a novel continuous sampled-data observer for linear time-varying systems is presented. The proposed observer is based on two different impulsive observers. The state estimates of these impulsive observers are fused in a manner such that continuous state estimation is achieved. Another significant contribution is comprehensive stability analysis of the proposed observer. The analysis establishes conditions that guarantee exponential convergence of observers. Contrary to the common understanding, it is revealed that the convergence of associated discrete-time equation for impulsive observers is not a sufficient condition for overall convergence. Contributions are illustrated by simulations.

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