Electromagnetic Time Reversal Technique – A New Way of Exploiting Multipath for Various Kinds of Radar
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چکیده
The Electromagnetic Time Reversal (TR) technique is based on the time invariance property of electromagnetic waves. For every forward electromagnetic wave, there exist a back propagating wave which follows the same path. If the medium has less loss and is inhomogeneous, then TR provides better crossrange resolution. The purpose of this paper is to showcase the improved properties of TR and its applications in radar particularly in UWB(Ultra Wide Band) high resolution radars such as GPR(Ground Penetrating Radar), TWIR(Through Wall Imaging Radar),and medical radar.
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Time-reversal is a novel method to utilize the multipath components in a cluttered environment for super-resolution focusing. The conventional thought about the adverse effects of multipaths on communication systems has been changing based on recent findings showing how to use multipath components to create independent paths between transmitter and receiver. Time-reversal schemes are one of the...
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