iosr-JEEE   Volume-14 ~ Issue-2 ~ March-April 2019

Abstract: Airports are installed with communications and navigation transmitters; these can be additional il integrated with Green Radar for airport protections and detections for against Stealth aircrafts and UAVs. "Green Radar" does not emit Electromagnetic Wave (EM) and explores available EM scattered by target in region provided by transmitters such as TACAN, NDB, TV, FM radio, cellular towers, space-bone transmitters and mono-static ground Radars. Green Radar offers distinct advantages over mono-static Radar in terms of silence / passive or covertness. It reduces usage / cluttering of EM spectrum and saving of scarce spectrum resources, so it is "electromagnetically Green. The need of Green Radar is need of an hour for surveillance of important assets, military base from stealth aircraft and airports. It can also be used to detect micro and mini UAVs..........

Keywords: Bi-static Radar, Green Radar, NDB, 3GPP, Cooperative Passive Coherent Location (CPCL), 5G, FM, DAB, DVB-T.

[1]. Griffiths, H.D. and Baker, C.J, "An Introduction to Passive Radar", Artech House
[2]. Raja S. A. Raja Abdullah, Asem A. Salah, and Nur E. Abdul Rashid, "Moving Target Detection by Using New LTE-Based Passive Radar", Progress In Electromagnetic Research B, Vol. 63, 145–160, 2015
[3]. International Civil Aviation Organization, "Annex 10 to the Convention on International Civil Aviation: Aeronautical Telecommunications", Volume 1: Radio Navigation Aids, 6th Edition, July 2006.
[4]. Piotr Samczyński, Mateusz Malanowski, Grzegorz Krawczyk, Janusz Kulpa, Marcin Żywek Warsaw University of Technology Institute of Electronic Systems Warsaw, Poland "Passive Radar as a Part of Critical Infrastructure Protection System".
[5]. A r e n d G W e s t r a, "Radar versus Stealth"

Abstract: The ordinary Voltage source inverter (VSI), whether it is single-phase or three-phase, has two output levels +Vdc/2 and –Vdc/2. This square waveform causes derating of the appliances or load devices as output voltage contains lower and higher order harmonics in addition to fundamental. For medium and high-power applications, multi-stage VSI (series and/or parallel combinations) with suitable filter (for obtaining near sinusoidal waveform at the output) may be a solution but there are problems in matching of different stages, selection of bulky transformer and proper filter. The quality of both the output voltage and current waveforms with minimum ripple can be obtained using high frequency switching using various PWM techniques to modify the square wave output to modified square wave output. However, conventional two-.........

Keywords -Harmonic Factor (HF), inverter, power semiconductor devices, SHE-PWM technique, simulation, total harmonic distortion (THD), transcendental equation

[1]. A Comparative study of different multilevel inverters_Electronic, IEEE Explore Conference 2017,ISBN 978-1-5386-1703-8, Gautam Ghosh et. el.
[2]. SELECTIVE HARMONIC ELIMINATION OF SINGLE PHASE VOLTAGE SOURCE INVERTER USING ALGEBRAIC HARMONIC ELIMINATION APPROACH, https://www.researchgate.net
[3]. STATIC INVERTER WITH NEUTRALIZATION OF HARMONICS, A. Kernick, J. L.Roof, T. M. Heinrich. AIEE Transactions, pt. I I(Applications and Industry), vol. 81, May 1962. pp. 59-68
[4]. Selective harmonic elimination in inverters using bio-inspired intelligent algorithms for renewable energy conversion applications: A review Mudasir Ahmed Memona,⁎, Saad Mekhilefa,⁎, MarizanMubina,⁎, Muhammad Aamirb, Renewable and Sustainable Energy Reviews 82 (2018) 2235–2253.

[5]. Solving Nonlinear Equations for Selective HarmonicEliminated PWM Using Predicted Initial Values

Abstract: The Implantable Medical Device IMD is a computer system that is Embedded into the human body. IMDs have extended the ability of physicians to diagnose and treat diseases, making great contributions to health and improve the quality of life of patients and, play an important role in keeping them alive. The new generations of IMDs are increasingly incorporating more computing and communication capabilities. The solutions to optimize the battery life time challange are RF energy harvesting, wireless power transfer and provide lower power transmitters. In this paper, methodologies to transfer and harvest energy in implantable medical devices are introduced and discussed to highlight the uses and significances of various potential power sources followed by in-depth discussions of the most popular method, namely inductive linking of wireless power transfer. The circuits have been designed in UMC 0.18.........

Keywords - CMOS analog circuit design , Integrated Circuits , Implantable Medical Device IMD , Energy Harvesting , Inductive Link , Wireless Power Transfer WPT, Wireless Body Sensor Network WBSN, Medical Wireless Technology, remote powering , power management, Telemedicine.

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