Ved Vyas Dwivedi

ORCID: 0000-0001-5258-2864
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About
Contact & Profiles
Research Areas
  • Antenna Design and Analysis
  • Advanced Steganography and Watermarking Techniques
  • Advanced Antenna and Metasurface Technologies
  • Advanced Data Compression Techniques
  • Antenna Design and Optimization
  • Microwave Engineering and Waveguides
  • Chaos-based Image/Signal Encryption
  • Video Coding and Compression Technologies
  • Digital Media Forensic Detection
  • Biometric Identification and Security
  • Energy Harvesting in Wireless Networks
  • Metamaterials and Metasurfaces Applications
  • Advanced Adaptive Filtering Techniques
  • Low-power high-performance VLSI design
  • Sparse and Compressive Sensing Techniques
  • Advanced DC-DC Converters
  • Multilevel Inverters and Converters
  • Metaheuristic Optimization Algorithms Research
  • Fluid Dynamics and Turbulent Flows
  • Analog and Mixed-Signal Circuit Design
  • Photovoltaic System Optimization Techniques
  • Advanced Wireless Communication Techniques
  • Image and Video Quality Assessment
  • RFID technology advancements
  • Direction-of-Arrival Estimation Techniques

Indus University
2023-2025

Chandigarh University
2022-2024

Interwell (Norway)
2024

Global University
2019-2021

C. U. Shah University
2013-2020

Reliance Industries (United States)
2020

Dr. B. R. Ambedkar National Institute of Technology Jalandhar
2016

Indian Institute of Technology Gandhinagar
2013-2015

Rust College
2013

Junagadh Agricultural University
2012

In this paper, a blind medical image watermarking scheme based on Fast Discrete Curvelet Transform (FDCuT) and Cosine (DCT) is proposed. FDCuT applied the to get different frequency coefficients of its curvelet decomposition. On high image, block wise DCT coefficients. Then mid band are modified by White Gaussian Noise (WGN) sequences according watermark bit watermarked image. At extraction end, recovery data performed correlation WGN sequences. The proposed tested for effectiveness various...

10.1016/j.jestch.2017.06.001 article EN cc-by-nc-nd Engineering Science and Technology an International Journal 2017-07-01

Soil toxicity is a major environmental issue that leads to numerous harmful effects on plants and human beings. Every year huge amount of Pb dumped into the environment either from natural sources or anthropogenically. Being heavy metal it highly toxic non-biodegradable but remains in for long time. It considered neurotoxic exerts living In present review article, investigators have emphasized side plants. Further, authors focused various environment. Investigators responses including...

10.1080/15592324.2024.2365576 article EN cc-by Plant Signaling & Behavior 2024-06-20

Green synthesis of nanoparticles has drawn huge attention in the last decade due to their eco-friendly, biocompatible nature. Phyto-assisted metallic is widespread field nanomedicine, especially for antimicrobial and anticancer activity. Here present research work, investigators have used stem extract Himalayan plant Hippophae rhamnoides L, copper (CuNPs). The synthesized CuNPs were analyzed by using sophisticated instruments, i.e., Fourier transform infrared spectroscopy (FTIR), UV-Vis...

10.3389/fmolb.2023.1246728 article EN cc-by Frontiers in Molecular Biosciences 2023-08-24

In this paper, a hybrid approach based on cryptography and steganography is proposed for the security of medical image over an open communication channel. approach, information embedded using discrete cosine transform (DCT)-singular value decomposition (SVD)-based embedding process. The encrypted CS encryption before into standard image. This inserted singular values DCT coefficients to get stego experimental results show that successfully extracted from under various processing attacks at...

10.1080/13682199.2017.1367129 article EN The Imaging Science Journal 2017-08-24

Rural youth-brain-drain to urban areas is the biggest challenge of 21 st century. The study reveals that rural Bharat people are poorly informed about renewable innovative digital technology and economical energy sources their impact on production consumption. This lack awareness hinders social acceptance sustainable development schemes discourages productivity compared areas. research highlights need for a comprehensive public information campaign benefits gain widespread support its...

10.2139/ssrn.5012208 article EN SSRN Electronic Journal 2025-01-01

Abstract Nanotechnological applications involving the fabrication of potential nanomaterials and novel strategies for mitigation contaminants have helped a lot in environmental cleanup. The chemical route silica nanoparticle (NPs) synthesis using tetra ethyl oxy silicone tetramethyl is expensive energy intensive. Silica NPs from coal fly ash waste could prove to be economical. In this study, investigators used via noble economical approach. This biosynthetic approach involved two steps: (1)...

10.1002/ppsc.202400007 article EN Particle & Particle Systems Characterization 2024-06-03

A rectangular micro strip patch antenna has been investigated and its performance analyzed with the aid of An soft HFSS. additional conductive plate comparable dimensions was placed above in order to enhance bandwidth. The package used analyse effect top patch, particular variation VSWR two parameters, namely distance between patches size upper patch. bandwidth 527 MHz for

10.1109/csnt.2012.19 article EN International Conference on Communication Systems and Network Technologies 2012-05-01

Fulfilling need of compact, cheap and efficient antennas is immensely sought after by the technocrats. The patch are providing necessary support as planar for satellite radar communications. Left Handed Materials, Metamaterials, allows us to tweak properties electromagnetic waves hence optimizations in physical antennas. Majority available literature presents negative refraction upper microwave regime, however, presented design offers benefits metamaterials lower Gigahertz domain. Through...

10.1109/cicn.2012.147 article EN 2012-11-01

The capability of adaptive antenna array lies in forming higher gain the user directions and lower interferer directions. technique used to produce such radiation pattern by calculating excitation weights are called beamforming (ABF) techniques. It tries minimize error between desired actual signal maximize interference ratio (SIR). But severe environment when is weak, effect SIR on needs be considered. This paper describes different techniques as non-blind least mean square (LMS), blind...

10.1016/j.jksues.2016.08.002 article EN cc-by-nc-nd Journal of King Saud University - Engineering Sciences 2016-08-09

A hybrid watermarking scheme for multimedia data such as digital image, video is proposed in this paper. The utilizes various image processing transforms and Compressive Sensing (CS) to achieved fragility security data. compressive sensing applied on the singular value of wavelet coefficients watermark get CS measurements. These measurements are embedded with embedding factor into (high frequency curvelet DT coefficients) host medium. In scheme, medium may be or video. generated watermarked...

10.1016/j.jksuci.2017.05.005 article EN cc-by-nc-nd Journal of King Saud University - Computer and Information Sciences 2017-05-20

Particle Swarm Optimization (PSO) Algorithm with the Schelkunoff polynomial method (SPM) is used to synthesize linear array. The problem of interference suppression in antenna array done by method. After that PSO algorithm control side lobe level (SLL) reduction pattern. It has been demonstrated complexity optimization reduced this technique. simulated results shows proper null placement, SLL and beamforming capability.

10.1109/icacea.2015.7164785 article EN International Conference on Advances in Computer Engineering and Applications 2015-03-01

Sidelobes in the radiation pattern causes degradation of actual signal and hence antenna power efficiency. This paper discusses problem interference suppression by reducing side lobe. Synthesis linear array using Continuous Genetic Algorithm is done to search for optimum amplitude weights minimize maximum lobe level. It has been demonstrated that level reduced effectively this technique. The simulated results shows an improved directivity, reduction first fast convergence. effectiveness

10.1109/icacc.2015.23 article EN 2015-09-01

This paper on fractal antenna design exhibits details of geometries developed to get multi band behavior patch resonator antenna. Research the performance perimeter and area alterations are presented. The for various incremental steps in fractions, results considerable rise number resonant working frequencies with improved bandwidth. presented antenna's nature is Aeronautical radio navigation at 2.7-2.9 GHz Aeronautical/Maritime 9.0-9.3 captured downlink data fixed/mobile satellite S C band.

10.1109/csnt.2012.26 article EN International Conference on Communication Systems and Network Technologies 2012-05-01

In this Paper, We worked and documented the implementation performance analysis of digital video watermarking that uses hybrid features two most powerful transform domain processing fundamentals linear algebra.We have taken into account Discrete Cosine Transform Singular Value Decomposition for development proposed algorithm.We first used then singular values insertion message behind video.Finally we visual quality matrices purpose.We also applied various attacks on found scheme more robust.

10.5815/ijigsp.2012.05.02 article EN International Journal of Image Graphics and Signal Processing 2012-06-18

This paper describes about the investigation on planar antennas at terahertz frequency. The effect of Electromagnetic coupling is analyzed for two different substrates namely Arlon and Polymide. analysis proposed model carried out by varying distance separation between patches along with rotation upper patch. Various parameters like return loss, gain bandwidth are compared same resonant finds its applications such as High frequency sensing communication.

10.1109/ams.2015.33 article EN 2015-09-01

In this paper we worked on the video watermarking technique wherein took as a cover medium and some binary images watermark to be embedded behind video.Specifically concentrated transform domain made use of hybridization two most important useful transformations, namely Discrete Wavelet Transform Cosine Transform, for purpose digital watermarking.We evaluated proposed method with visual quality matrices based results concluded that provides extra robustness against various attacks compare...

10.5815/ijigsp.2013.03.05 article EN International Journal of Image Graphics and Signal Processing 2013-02-05

In today's scenario, the complexity, loss, cost and size of system are prime requirements end user. This paper shows design technique, parametric analysis, simulated fabricated results parallel coupled transmission line filter operating at 2 GHz, most used frequency in wireless systems. Microstrip Stripline technologies very common for implementation bandpass bandstop filters with required bandwidth up to a 20% reference central frequency. Design equations calculation parameters namely,...

10.1109/scopes.2016.7955873 article EN 2016-10-01

This paper presents the critical comparative analysis of efficient wireless channels using modeling Digital Video Broadcasting (DVB) system. In last few years, telecommunication industries' development has focused on an intensive use broadband systems, which are characterized by high quality features. For this issue, new technologies with lower Bit Error Rate abilities have been designed. That is fundamental communication system that allows a fast deployment as well channel modeling. set...

10.1109/cicn.2011.147 article EN International Conference on Computational Intelligence and Communication Networks 2011-10-01

Good governance enhances efficiency both in public and private sector organizations. Productivity good are closely associated to aid value for investment terms of time money, end-user satisfaction. Enhancement quality improvement higher education depend on governance-trends productive leadership the institution. Discipline, vision set, policy practiced by Higher Education Institutions (HEIs) propagate down timeline-hierarchy. This article addresses pivotal factors parameters worldwide...

10.5430/ijhe.v9n2p126 article EN International Journal of Higher Education 2020-01-08
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