Rajasthan Technical University

About: Rajasthan Technical University is a education organization based out in Kota, Rajasthan, India. It is known for research contribution in the topics: Photovoltaic system & PID controller. The organization has 716 authors who have published 1084 publications receiving 4530 citations. The organization is also known as: RTU.

Black-Hole Gbest Differential Evolution Algorithm for Solving Robot Path Planning Problem

Abstract: The differential evaluation (DE) algorithm is a population-based very well-known meta-heuristic, proposed to fix the complex real-world optimization problems. This paper presents a variant of DE, inspired by the black-hole (BH) phenomenon in space and named as Black-Hole Gbest DE algorithm (BHGDE). In BHGDE, the realization of Black-Hole improves the exploration capability, while maintaining the original exploitation capability of the DE algorithm. The efficiency, reliability, accuracy, and robustness of the anticipated BHGDE algorithm are analyzed while simulating it over 15 complex benchmark functions of different modality and characteristics. The competitiveness of the newly anticipated BHGDE algorithm is proved by comparing the simulated results with the DE and its two recent variants, namely Opposition-based Differential Evolution (ODE) and Hybrid Artificial Bee Colony algorithm with Differential Evolution (HABCDE) algorithms. To check the robustness of the propounded BHGDE, it is implemented to solve the problem of path planning of the robots starting from the source node to the destination node.

Image watermarking using IWT-SVD and its comparative analysis with DWT-SVD

Abstract: In this era of internet, protection of digital images has become an important concern. Digital image watermarking is a scheme that has been developed to protect confidential digital images from illegal copy and manipulations. There are various methods of watermarking but to achieve good imperceptibility and robustness, a combined image watermarking algorithm based on Integer Wavelet Transform (IWT) and Singular Value Decomposition (SVD) has been developed here. Another aim of this paper is to compare the performance of IWT-SVD algorithm at different scaling factors with DWT-SVD technique. The experimental results have been shared for both the techniques and different evaluation parameters such as; Peak Signal to Noise Ratio (PSNR) and Normalized Cross Correlation (NCC) have been calculated & compared in tabular forms.

The Impact on Raise of Environmental Pollution and Occurrence in Biological Populations Pertaining to Incomplete H-function

Abstract: The article deals with the study on impact on raise of environmental pollution and occurrence in biological populations by presenting a mathematical model relating to incomplete H-function. The results proven in this paper are common in mathematical sciences and show various cases of interest on relevant conditions of parameters involved therein.

A new approach for simplification and control of linear time invariant systems

Abstract: This study presents a new approach for system simplification and control. This approach is based on the behaviour of growth and reproduction of weed plants namely Invasive Weed Optimization (IWO). The micro system/simplified model of large scale single-input single-output (SISO) continuous time system is attained by optimizing a predefined objective/fitness function by weed optimization algorithm. Performance of the proposed approach is analysed in terms of transient and frequency response parameters such as rise time, peak time, maximum overshoot, gain margin and phase margin, etc. This analysis reveals that the results of this proposed approach are commensurable with other available approaches. Additionally, the application of proposed approach is explored in control of a micro system based on system simplification. The control action is obtained by achieving the unknown parameters of the proportional integral derivative (PID) controller using IWO. Further, the concept of error minimization is being utilised to obtain parameters of PID controller. The simulation results reveal that the PID controller designed by proposed approach has no affect on change of the system. The PID controller for a micro system (second order) exhibits satisfactory performance on the first order simplified system, therefore changing the system does not affect the performance of PID controller. As the proposed approach is being utilised for both micro system’s simplification as well as in controller design, therefore it may be applied in various applications of Microsystems’s analysis and design.