Embedded systems (Life detecting circuit using PIC microwave controller) ABSTRACT: A new revolutionary microwave life detection system. Which is used to locate human beings buried (or) trapped under earthquake rubble has been designed. This system operating at certain frequency can remotely detect the breathing and heart beat signals of human beings buried under earthquake rubble. By proper processing of these signals‚ the status of the person under trap can
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CHAPTER I ------------------------------------------------- INTRODUCTION 1.1 Introduction Portable electronic devices are very popular nowadays. As the usage of these portable electronic devices is increasing‚ the demands for longer battery life are also increasing. These batteries need to be recharged or replaced periodically. It is a hassle to charge or change the battery after a while‚ especially when there is no power outlet around. Therefore‚ our team is inspired to design a wireless
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range‚ altitude‚ direction‚ or speed of both moving and fixed objects such as aircraft‚ ships‚ motor vehicles‚ weather information and terrain. The term RADAR was coined in 1941 as an acronym for RA dio D etection A nd R anging. A long-range radar antenna‚ known as ALTAIR. 4 Introduction: Introduction Ultrasonic RADAR is basically one of the applications of the RADAR system. It consists of a set of ultrasonic transmitter and receiver‚ both of which operate at the same frequency. When something moves
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2012 Estimation of Electromagnetic Radiation from Base Station Antenna R. K. Singh Abstract—In the present paper‚ an observation of electromagnetic radiation from base station antennas installed for various communication purposes has been done on the basis of equivalent isotropically radiated power (EIRP) calculations. For this purpose‚ a typical wireless communication site has been selected where GSM‚ CDMA‚ 3G/UMTS and WiMAX antennas are installed. The overall ration of EIRP and threshold EIRP combining
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Updated RFID just like Barcode It is a “Tool” for “Data Collection” What is RFID ? Systems Scanning Limited Radio Frequency IDentification (RFID) Read Only “Unique Serial ID” Antenna Read / Write “User Accessible Memory” •Item Code •Lot Number •Manufacturing Date • . . . etc RFID Chip Antenna What is RFID ? Memory Space in RFID Tag What is RFID ? Systems Scanning Limited Non-Contact Reading‚ using Radio Signals What is RFID ? Key Components RFID Tag Reader
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are very visual creatures - but have no real defense mechanism‚ so they rely on the shrimp for shelter the shrimps use their antenna to stay in "touch" (litearlly) with the goby and if the goby sees danger‚ he’ll shiver and the shrimp will run back into the hole and if the shrimp goes and getsfood... and gets lost.. the goby will see him and run over and touch his antenna...and lead him back to his hole if they’re unable to dig or have different type of (blah) to burrow out... lower chance
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From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search For other uses‚ see Radar (disambiguation). A long-range radar antenna‚ known as ALTAIR‚ used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on Kwajalein Atoll. Israeli military radar is typical of the type of radar used for air traffic control. The antenna rotates at a steady rate‚ sweeping the local airspace with a narrow vertical fan-shaped beam‚ to detect aircraft at all altitudes
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How would pilots ever get around so easily without the help of navigation aides? Navigational aides have been around for almost as long as aircraft have been flying in the skies above us. The first navigation system was composted of just a high intensity-flashing beacon. These beacons were placed on the flight routes that were popularly flown in the mid 1920’s. With more time more of these technologies that help us navigate the world will be even simpler than today. This paper will explain how some
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Satellite Communication Engineering Michael O. Kolawole Jolade Pty. Ltd. Melbourne‚ Australia Marcel Dekker‚ Inc. TM New York • Basel Copyright © 2002 by Marcel Dekker‚ Inc. All Rights Reserved. ISBN: 0-8247-0777-X This book is printed on acid-free paper. Headquarters Marcel Dekker‚ Inc. 270 Madison Avenue‚ New York‚ NY 10016 tel: 212-696-9000; fax: 212-685-4540 Eastern Hemisphere Distribution Marcel Dekker AG Hutgasse 4‚ Postfach 812‚ CH-4001 Basel‚ Switzerland tel: 41-61-261-8482; fax: 41-61-261-8896
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overview of what will be covered and what the goals are. * What is the intent of the lab? What issues are addressed? Why is it important? What are the goals? For this week’s lab we are using various scenarios to compare and contrast different antenna types and solutions to reduce signal spillover in a specific wireless network. Also we are evaluating and comparing the different possible security methods that could be implemented in a wireless network and listed the advantages and disadvantages
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