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Reversal of waves in forward-scattering location

机译:前向散射位置中的波反转

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Potentialities of the pulsed acoustic forward-scattering location with the use of time separation of the intense direct and weak scattered signals propagating at a small angle to one another are considered. Two types of interference are taken into account: nonstationary observation conditions under the effect of currents, which affect the arrival times of the direct and scattered signals, and nonstationary reverberation. It is shown that, in the presence of these interferences, the application of the correlation transformation equivalent to the time reversal of waves has an advantage over the conventional location technique based on the determination of the signal travel times. (c) 2005 Pleiades Publishing, Inc.
机译:考虑到脉冲声前向散射位置的潜力,该时间间隔是通过相互之间以小角度传播的强烈的直接散射信号和弱散射信号进行时间分隔而实现的。考虑了两种类型的干扰:在电流作用下的非平稳观测条件,它会影响直接信号和散射信号的到达时间;以及非平稳混响。结果表明,在存在这些干扰的情况下,与基于波的时间反转的等价的相关变换的应用相对于基于信号传播时间确定的常规定位技术具有优势。 (c)2005年Pleiades Publishing,Inc.

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