Hidetoshi Oya

LQ Optimal Control-Based Variable Gain Controllers for Linear Systems with Structured Uncertainties and Its Performance Analysis

Hidetoshi Oya & Yuhei Uehara · Journal of Advances in Mathematics and Computer Science · 2015

This paper proposes a variable gain controller for a linear system with structured uncertainties. The proposed variable gain controller is based on LQ optimal control for the nominal system and consists of the optimal feedback gain and a time-varying adjustable parameter which is...

Open access Research Article 10.9734/BJMCS/2015/14446

A Design Method of Variable Gain Robust Controllers with Guaranteed Gain Performance for a Class of Uncertain Switched Linear Systems

Hidetoshi Oya & Kojiro Hagino · Journal of Advances in Mathematics and Computer Science · 2014

This paper discusses a design problem of a variable gain robust controller with guaranteed  gain performance for a class of uncertain switched linear systems. The uncertainties included in the switched linear system under consideration are supposed to satisfy the matching conditi...

Open access Research Article 10.9734/BJMCS/2015/12382

A New Recongnition System Based on Gabor Wavelet Transform for Shockable Electrocardiograms

Takayuki Okai, Shonosuke Akimoto, Hidetoshi Oya, Kazushi Nakano, Hiroshi Miyauchi & Yoshikatsu Hoshi · Journal of Applied Life Sciences International · 2020

This paper presents a new recognition system for shockable arrhythmias for patients suffering from sudden cardiac arrest. In order to develop the recognition system, lots of electrocardiogram (ECGs) have been analyzed by using gabor wavelet transform (GWT). Although, there is a h...

Open access Research Article 10.9734/jalsi/2020/v23i1230203