A study on environmental adaptive artificial time reverse mirror for pulse signal in shallow water
Scientia Sinica Physica, Mechanica & Astronomica(2013)
Abstract
A method of artificial time reverse based on dedispersion transform (DDT-ATR) has been proposed in this paper. By applying DDT and delay-and-polarized-summation on VLA data in a successive order, the final output of DDT-ATR compressed in time and focus on source depth. Be different from classical artificial time reverse which need environmental parameters, the method proposed in this paper needn’t environmental parameters except waveguide invariant, which is considered as an environmental adaptive artificial time reverse mirror. Through Yellow Sea data processing, an excellent agreement between the focal point of artificial time reverse and real source depth monitored by the pressure meter suggests a good validity of the method proposed in this paper.
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Key words
pulse signal
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