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Time reversal signal processing
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<p>Time reversal signal processing is a <a href="/facts/Signal_processing/Npaja6zb">signal processing</a> technique that has three main uses: creating an optimal carrier signal for communication, reconstructing a source event, and focusing high-energy <a href="/facts/Wave/fU0HH6St">waves</a> to a point in space. A Time Reversal Mirror (TRM) is a device that can focus waves using the time reversal method. TRMs are also known as time reversal mirror arrays since they are usually <a href="/facts/Array_processing/97cb0hmk">arrays</a> of transducers. TRM are well-known and have been used for decades in the optical domain. They are also used in the ultrasonic domain. </p>