Rfid

Essay specific features

 

Issue:

Technology

 

Written by:

Shannon P

 

Date added:

August 4, 2014

 

Level:

University

 

Grade:

B

 

No of pages / words:

7 / 1934

 

Was viewed:

9768 times

 

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Essay content:

RADAR is an acronym for Radio Detection and Ranging, and essentially works the same as RFID; a transmitter emits radio waves, which reflect off an object and are detected by a receiver. The problem with radar was that it couldn’t differentiate between enemy aircraft and a country’s own aircraft...
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German pilots discovered that if they rolled their planes upon returning to base, it would alter the radio signal reflected to the receivers. Fundamentally this was the first implementation of identifying a specific object using radio waves. Sir Robert Alexander Watson-Watt, considered by many to be the first to discover radar, worked secretly with the British military to develop the first active Identify Friend or Foe (IFF) System...
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