JAGADEESH CHANDRA A P
@aitckm.in
Professor, Department of Electronics and Communication Engineering
Adichunchanagiri Institute of Technology
RESEARCH INTERESTS
Signal Processing, wireless communication, Virtual Instrumentation
Scopus Publications
Scopus Publications
Pallavi H. V., A. P. Jagadeesh Chandra, and Paramesha Paramesha
World Scientific and Engineering Academy and Society (WSEAS)
For 5G communications, An different types Antennas are plays major role to minimize mutual couplings and here MIMO is important technology which uses patch antenna’s. Where the existing design focuses only on frequency reconfiguration, but it does not take advantage of the entire frequency and power spectrum. Therefore, the honeycomb-shaped Metamaterial cells used in the suggested antenna design serve as a superstrate for micro-strip patch antennas with a extensive range of actual negative permittivity and permeability, as well as a refractive index feature. Also, to reduce mutual coupling in current printed and other antennas. A metamaterial superstrate-based micro-strip antenna with RF MEMS Varactor diode switching is proposed in this paper. Based on a micro-strip antenna, metamaterials in the shape of circular and hexagonal arrays are employed as the superstrate. Also, the superstrate layers serve as a random, providing strength to the entire structure while also improving other antenna metrics such as gain and bandwidth. The design outputs for several metamaterial superstrates in terms of reflection coefficient (S11), gain, and bandwidth are compared by adding varactor diode switches to the metamaterial superstrate, which also allows for frequency reconfiguration. As a result, the suggested antenna was designed to reduce mutual coupling and improve system performance in 5G technology, specifically in mm-wave applications. The obtained results for metamaterial superstrate designs demonstrate high bandwidth and gain behavior.
N. P. Arun Kumar and A. P. Jagadeesh Chandra
Springer International Publishing
Arun Kumar N P and Jagadeesh Chandra A P
International Association of Online Engineering (IAOE)
<p class="0abstractCxSpFirst">The unprecedented growth in Internet technologies has created revolutionary changes in the use of collaborative learning tools with remote experimentation. These tools enhance the experiential learning aspects of engineering education. Laboratory experiments are integral part of science and engineering education. Automation is changing the nature of these laboratories, and the focus of the system designer is on the availability of various interfacing tools to access the laboratory hardware remotely with the integration of computer supported learning environment.</p><p class="0abstractCxSpMiddle">Work on laboratory experiments and project works requires access to expensive hardware equipments. The high cost of these instruments along with time consuming development process of experimentation in the educational process creates a significant bottleneck. There is a need for the development of remote laboratory using which the users can access the laboratory instruments and the programmable devices remotely on their smart phones/tablets to perform the laboratory experiments. This implementation avails laboratory facility for complete twenty four hours a day and will increase the productivity of the laboratory hardware and measuring instruments.</p><p class="0abstractCxSpLast">This paper presents the detailed architecture and the implementation details of remote laboratory by which user can perform laboratory experiments remotely. Develop mobile based remote laboratory where user can access remote laboratory on his smart phone or tablet to perform the experiments. Software application is developed on Android platform for the implementation.</p>
K. L. Banumathi and A. P. Jagadeesh Chandra
IEEE
Historic handwritten documents are valuable traditional legacy, as they deliver insights into both tangible and intangible cultural features since the ancient time. Handwritten historical documents stance real experiments for involuntary processing, such as image binarization and segmentation. Segmentation of handwritten pages interested in text lines and words is problematic as the script is not unique and the lettering differs a lot contingent on the writer and yet, it is a significant phase for the recognition of content. In this paper we have presented a segmentation system based on Projection Profile method for general handwritten text and historical handwritten text. The system includes procedures for preprocessing, the preprocessing of text image consists of noise removal, binarization, skew detection and correction, following these preprocessing steps, the text image is split into individual text-lines then these text-lines to individual words. The proposed algorithm provides 90% successful segmentation achieved in line segmentation and but word segmentation level needs more effort as it is complicated for Kannada script. The accuracy is reduced due to lack of space between the text-lines and overlapping of subscripts.
Arun Kumar N. P. and Jagadeesh Chandra A.P
International Association of Online Engineering (IAOE)
Remote instrumentation and collaborative learning methods have enhanced the experimental learning aspects of engineering education. Automation is changing the nature of these laboratories and remote access techniques are providing access to server machine from anywhere in the world through internet. This provides an opportunity to develop the remote instrumentation laboratories using which students can perform their lab experiments remotely all over the day and thereby increasing the productivity of the lab setups and measuring instruments. This paper presents the detailed architecture and the implementation details of remote DSP lab instrumentation. LabVIEW user interface is developed to control all the test instruments and their related hardware interfaces. Radmin tool is used as remote access tool to integrate multiple clients to server machine through wired/wireless internet access. Hardware interface is designed and developed to route data and control signals from data acquisition card to the respective hardware and to control the test instruments.
A. P. Jagadeesh Chandra and C. R. Venugopal
Institute of Electrical and Electronics Engineers (IEEE)
Laboratory experiments are integral part of science and engineering education. Automation is changing the nature of these laboratories, and the focus of the system designer is on the availability of various interfacing tools to access the laboratory hardware remotely with the integration of computer-supported learning environment. This paper presents the novel design techniques to access experiments on electrical machines remotely through the Web using virtual instrumentation (VI) tools. The general Web-interface architecture is presented to facilitate control and measurement of experimentation parameters online with complete isolation from the electrical line voltage. LabVIEW-supported VI tools are used to create the Web-based automation and control of the experiment hardware. The custom-built electrical hardware is designed to interface the Web server with the experimental resources and to support user-friendly interface to access the data online. The safety issues while operating the electrical machines online are addressed through the control logic designed by the graphical code. The designed system exploits the data acquisition and the LabVIEW features to extend the dc motor and generator experimentation online along with the acquired data that are presented in virtual meters as well as in graphical plots.
A. P. Jagadeesh Chandra and C. R. Venugopal
IEEE
Electronic laboratory experiments mainly describe the design and implementation of various circuits which assists theoretical study. Web based environment for these experiments helps the learners with any time accessibility of the remote hardware resources through online environment. The graphical programming language LabVIEW and data acquisition facilities provide an attractive solution through the availability of rich functions to acquire and analyze the signals. The custom interface circuits are designed to configure the circuit remotely based on the design requirement. The remote switching of different components to the circuit experimentation is achieved through the transistor switching circuitry. The switching circuitry is operated by the Boolean control actuations on graphical user interface, which can be remotely operated through a common web browser. A case study is presented with the circuit experimentation on the generation of frequency modulation signal.
A.P Jagadeesh Chandra and R.D Sudhaker Samuel
Springer Netherlands
Jagadeesh Chandra A.P. and R. D. Sudhaker Samuel
Springer Berlin Heidelberg
A.P. Jagadeesh Chandra and R.D. Sudhaker Samuel
IEEE
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