Department of Electrical Engineering

&ldquo;IIT Jodhpur is committed to impart quality education to facilitate the creation of qualified, competent and responsible human resources to meet the emerging technological challenges of the world. It is working towards creating an equitable learning platform that is positive, accessible and effective in the face of the modern societal and scientific advancements.

Flexibility in curriculum, in all its academic programs, encompassing elements of teaching, research, creativity, innovation and entrepreneurship is the most unique feature of IIT Jodhpur. The Department of Science and Technology (DST), under the National Mission on Cyber Physical Systems, has identified IIT Jodhpur as a Technology &amp; Innovation Hub in the area of Augmented Reality and Virtual Reality. The institute has also been nominated as the coordinator for the Jodhpur City and Knowledge Cluster by the Office of Principal Scientific Adviser, Government of India.

The sprawling 852-acre IIT Jodhpur campus is a majestic tribute to the deep-rooted diverse cultural heritage of the region. The campus is an architectural masterpiece, which is slated to become an international exemplar of sustainability with net-zero energy, and advanced water and waste management strategies.&rdquo;

IIT Jodhpur

World University root node

Multimedia Tools and Applications (Accepted)

Quantifying Image Naturalness using Transfer Learning and Fusion Model

This paper presents simple and intuitive strategies for effective online assessment of a freshman engineering course. The proposed strategies for unproctored online exams include creating multiple sets with identical options, using image-format questions, maintaining short duration of exam, and employing a rotational assignment. Unlike a single-set paper where the class average was found to be disproportionately high, the proposed strategies helped in correctly restoring the class average. Feedback and results from 141 students show a significant statistical difference in the scores obtained using the proposed multi-set quiz framework, as opposed to conventional single-set papers. The paper also presents a simple setup of remote proctoring using dual-video and screensharing to replicate in-person classroom exams without the need of commercial proctoring services.

Learning: Research and Practice (Accepted)

Strategies for maintaining academic integrity in remote unproctored and proctored online assessments for engineering courses

Proc. IEEE EDUCON 2023

Pre-University Outreach in STEM field through Basic Electronics Hands-on Activities

In this paper, we propose a decoupled approach to the design of a robust sliding mode observer. The proposed observer has a linear part, which is designed based on the linear observer theory, and a discontinuous part based on the sliding mode technique to reject the disturbance signals. Here, the discontinuous injection of output error is fed only to the sliding mode part of the observer, whereas the linear part is designed with the linear injection of output error. We state the sufficient condition which guarantees the existence of the proposed sliding mode observer. The main outcome of this design is that the steady-state accuracy of the observer is improved from that of the existing ones, where the full order discontinuous output error vector is injected into the observer dynamics. These switching terms in discrete dynamics often result in numerical chattering, which is attenuated in our proposed observer. We also show the global convergence of estimation error for this observer in the presence of disturbance. Finally, we demonstrate the design technique of the proposed sliding mode observer with an example. © 2022 Elsevier Ltd

Automatica

A decoupled design of a robust sliding mode observer

This study proposes an input-dependent event-triggered mechanism with parameterized adaptive feedback controller where the norm of a gain matrix decreases with a decrease in control parameter ϵq at any particular instant. The main focus of the proposed work is to leverage the monotonic decaying behaviour of the lower bound of inter-event time with respect to ϵq in order to schedule other tasks in network resource aware system without losing system stability. Further, the monotonic decaying behavior of the inter-event time with respect to ϵq is established analytically. Furthermore, the non-existence of Zeno phenomena and system stability are established. A network controlled active suspension system is considered in the simulation to demonstrate the proposed method. © 2023 European Control Association

European Journal of Control

Event-triggered mechanism with parameterized adaptive feedback controller for network resource-aware system

Wind energy (WE) is emerging as a green and clean energy source. The power quality (PQ) significantly deteriorates when WE sources are connected to the weak ac grid. This is due to the variable wind speed, the impedance of weak grids, and nonlinear loads. This article proposes a methodology to improve the PQ in the weak grid with WE penetration using additional distribution static compensator (DSTATCOM). Fuzzy logic (FL) controller is implemented in the conventional synchronous reference frame (SRF) scheme to minimize the oscillations in the voltage signals. Also, a feedforward block of the WE source is incorporated in the FLSRF control scheme for adapting changes associated with the wind speed. The proposed control scheme accommodates the changes related to the grid's strength, wind speed, load currents, and dc-link voltage dynamics to estimate the switching signals for the DSTATCOM. The MATLAB simulation and experimental studies established the effectiveness of the proposed method for enhancing the PQ performance of weak grid-connected WE sources in the presence of nonlinear loads. © 1982-2012 IEEE.

IEEE Transactions on Industrial Electronics

Performance Improvement of Weak Grid-Connected Wind Energy System Using FLSRF-Controlled DSTATCOM

Multimedia Systems

Edge-preserving image denoising using noise-enhanced patch-based non-local means

ISTELive22

Bridging the digital divide through blended learning for freshmen engineering students

In the world of ever-growing technology and multimedia devices, educators around the globe are innovating newer ways to engage students in a more immersive and enjoyable way. Games have had a proven effect on marketing, sales, healthcare, behavioral changes, K12 education, and have now increasingly gained momentum in higher education, especially engineering education, primarily to enhance learner engagement and motivation. This paper presents a work-in-progress towards developing serious games as supplemental material in teaching the course on Basic Electronics. Two story boards of game-based learning are presented in this paper along with the design strategy and target core motivational drives. The game development is under progress and student reception and feedback is yet to be incorporated.

Game-based Learning for Engineering Education: Supplementing Basic Electronics Instruction with Educational Games

The use of smartphone cameras for capturing photographs has seen an exponential growth in the last decade. The noise present in these photographs significantly deviates from the popular Independently Identically Distributed (i.i.d.) Additive White Gaussian Noise (AWGN) noise, and thus the conclusions drawn from simulated-AWGN cannot be directly applied to the smartphone’s true noise. This paper is the first reporting of the exhibition of Stochastic Resonance (SR) or noise-induced threshold-crossing in three genres of discontinuity detectors used in image processing — corner detector, line detector, and edge detector for real-world smartphone images. For the images under investigation, the performance of these detectors is quantified w.r.t. parameters representing intrinsic noise. Observations suggest that all these detectors inherently exhibit the phenomenon of SR due to the fundamental assistance offered by controlled amount of noise in crossing detector thresholds. The manifestations of SR — constant parameter value with varying noise and varying parameter value with constant noise — are demonstrated to exhibit SR in each of the three detectors.