i-manager's Journal on Electronics Engineering (JELE)


Volume 10 Issue 2 December - February 2020

Research Paper

Automatic Target Detection in Ground Surveillance Radar

Anshuman Vikram Singh* , P. M. Menghal**
*-** Department of Electronics, Military College of Electronics and Mechanical Engineering, Secunderabad, Telangana, India
Singh, A. V., & Menghal, P. M. (2020). Automatic Target Detection in Ground Surveillance Radar. i-manager's Journal on Electronics Engineering, 10(2), 1-10. https://doi.org/10.26634/jele.10.2.17262

Abstract

In a modern radar system, both recorded data and recorded intelligence information can be used together with data fusion output information to exactly identify or classify target type. Different techniques and strategies can be used to combine information from sensor system. In this technique of target classification, the difference in tone of various target type is utilized as heard by the operator. The different type of target generates a specific audio signal, which is heard by Ground Surveillance Radar operator via head phone. From audio signal, feature extraction has been carried out as a first step in order to uniquely identify audio tone of one target type from another, i.e., Heavy Vehicle to Light Vehicle, Group of men to Crawling men. Subsequently, fuzzy membership function is set to reflect the physical limits stored in the knowledge database for accurate identification of target audio tone type. The entire process of feature extraction and fuzzy logic has been done in MATLAB. The main aim of the paper is to study Digital Audio Processing Techniques and its applications in Ground Surveillance Radar.

Research Paper

Simulation of Hexagonal FM-MCF with Doped Liquid and Comparison with Octagonal and Decagonal Structure

Shruti Vilas Geete* , Vikas Sahu**
* Department of Electronics and Communication Engineering, Shri Shankracharya Technical Campus, Bhilai, Chhattisgarh, India.
** Department of Electronics and Telecommunication, Shri Shankaracharya Technical Campus, Bhilai, India.
Geete, S. V., & Sahu, V. (2020). Simulation of Hexagonal FM-MCF with Doped Liquid and Comparison with Octagonal and Decagonal Structure. i-manager's Journal on Electronics Engineering, 10(2), 11-15. https://doi.org/10.26634/jele.10.2.16173

Abstract

This paper presents the analysis of confinement loss and dispersion of Multi-Core Fiber (MFC) by varying the structural parameters like wavelength, diameter of holes and pitch length. The different geometries of Multi-Core Fiber used for this analysis are Hexagonal, Octagonal and Decagonal structures. The simulation is done by doping few inner ring holes of the MCF with different liquids having refractive index lower than that of the actual core. The calculation of confinement loss and dispersion is done in COMSOL Multiphysics software while the graphs are plotted in MATLAB. It has been observed that variation of structural parameters has been found to cause change in confinement loss and dispersion. After comparing these three structures, it is seen that hexagonal structure shows a better outcome than others.

Research Paper

Solar Powered Robotic Seed Sowing Agribot using Linear Actuator

K. Suresh* , R. Ajith Kumar**, M. Haridoss***, K. Gokul****
*-**** Department of Electrical and Electronics Engineering, Sri Manakula Vinayagar Engineering College, Puducherry, India.
Suresh, K., Kumar, R. A., Haridoss, M., & Gokul, K. (2020). Solar Powered Robotic Seed Sowing Agribot using Linear Actuator. i-manager's Journal on Electronics Engineering, 10(2), 16-26. https://doi.org/10.26634/jele.10.2.16732

Abstract

Agriculture plays the primary role in food production. Ploughing the land and sowing seeds are important prerequisites for any plantation or cultivation. In the traditional method, the farmer sows the seed manually without using any machinery. The main problem of traditional technology is that uniform seed distribution cannot be achieved. The basic goal of seed sowing process is to sow the seeds at required depth and at required spacing. The foremost objective of this paper is to design the Agribot (Automatic Seed Sowing Machine) using solar energy. In this proposed system, ultrasonic sensors give the signal to the micro-controller. It gives the signal to the motor driver circuit, then Agribot turns automatically and with the help of a linear actuator it sows the seeds in the next line after sensing the furrows in the agricultural field. Solar panel is used to charge the battery that provides the necessary power to the gear motors. The boost converter is connected between the solar panel and the battery. ATmega328 microcontroller is used to control all the operations performed by the machine. The Agribot has been designed and tested in real time (small scale).

Research Paper

Performance Evaluation of Several Laser Carrier Modulations with Free Space and Optical Fiber Channels in Optical Communication Systems

Helen Vedanayagi Anita. R*
Department of Electronics and Communication Engineering, Government College of Engineering, Tirunelveli, Tamil Nadu, India.
Anita, H. V. R. (2020). Performance Evaluation of Several Laser Carrier Modulations with Free Space and Optical Fiber Channels in Optical Communication Systems. i-manager's Journal on Electronics Engineering, 10(2), 27-31. https://doi.org/10.26634/jele.10.2.16610

Abstract

Laser source is an inevitable source for generating light waves which act as a carrier in wired or wireless medium. LED is a modulation source which reduces the wavelength in visible light medium. In this paper, different laser sources with free space channel and optical fiber in the wavelength of 1550μm are used to evaluate the performance of Quality Factor and Bit Error Rate (BER). The controlled pump laser, directly modulated measured laser and empirical measured laser are reviewed with free space and optical fiber channels. The corresponding modulated signal source is received and the maximum probability of quality factor and minimum bit error rate is determined. The reason for choosing the laser over LED is that the laser has more bandwidth and power efficiency and is compatible with both single and multimode fibers. Laser has higher SNR than other source of optical communication.

Research Paper

Patient Monitoring System using IOT: A Proposal

Tej Prakash Sahu* , Vinay Kumar Jain**
*-** Department of Electronics and Telecommunication Engineering, Shri Shankaracharya Group of Institutions, Bhilai, Chhattisgarh, India.
Sahu, T. P., & Jain, V. K. (2020). Patient Monitoring System using IOT: A Proposal. i-manager's Journal on Electronics Engineering, 10(2), 32-36. https://doi.org/10.26634/jele.10.2.17082

Abstract

Internet of Things (IoT) is utilized as a part of many applications. One such application is in medical services for screening a patient's wellbeing. Internet of Things makes therapeutic gear more effective by permitting ongoing checking of patient's wellbeing, in which sensor receives the information of patient and decreases human errors. With modern communication technologies and intelligent systems, patients can monitor their own health signs at home and communicate the results to their health providers, wirelessly. In this paper, we not only monitor the patient but also track the environment of patient. This will increase the ability to address a problem before a patient requires acute care. We have the ability to remotely monitor vital signs of a patient in real-time. Our proposed system is simple, low-cost and compact. This research outlines the design and development of a cost effective and reliable wireless sensing device, which is based on Node MCU microcontroller for collecting real-time health vital signs such as human body temperature and heart beat rate.