Volume 11 Number 4 December 2021

    
Collison Detection and Prevention in Smart Traffic Lights

Rosen Vitanov and Rumen Arnaudov

https://doi.org/10.6025/jio/2021/11/4/91-96

Abstract In this paper we have introduced a software model for a collision detection and prevention of smart traffic light. The aim of this work is to enable to prevent car collisions and incidents at road intersections. We have developed an eCall system, that will work for block box for vehicles. We have proposed strong architecture and design for the proposed... Read More


The Electrical Impedance Spectroscopy of Measurements

Svetlana Gerganova-Savova, DanielaToneva-Zheynova and YankoYanev

https://doi.org/10.6025/jio/2021/11/4/97-101

Abstract To estimate the impedance, the electrical impedance spectroscopy is used in many areas and disciplines. We used the Randle’s model for presenting impedance measurement. The characteristics of the impedance systems are described further. ... Read More


Cluster Analysis of the Properties of Wines Using Various Parameters

Krastena Nikolova, Ivan Maslinkov, Irena Ivanova

https://doi.org/10.6025/jio/2021/11/4/102-108

Abstract In this work we basically intended to do a few assessments of wines that generate results with the help of statistical processing. We have studied the – color coordinates, lightness, Hue angle, chroma and transmission coefficient parameters. We have used cluster analysis for the study of the parameters and variables. We have clustered the samples into two principal groups with... Read More


Comparative Analysis of more Commonly used Recursive Methods for Parameter Estimation in Adaptive Systems

Ivan V. Grigorov, Nasko R. Atanasov

https://doi.org/10.6025/jio/2021/11/4/109-114

Abstract The adaptive control covers a set of methods that provide a systematic approach for automatic control in realtime. Recursive methods for parameter estimation have to meet the requirements for identification algorithms in real time. This is determined from the fact that the adjustment of the model after the submission of new data from monitoring, and the development of new control... Read More