Subarray time reversal mirror detection method
A technology of time inversion and detection method, applied in the field of multi-target detection, can solve the problem of inability to obtain target images, and achieve the effect of multi-target detection
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[0067] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0068] When designing a new time-reversal multi-target detection method, it is always hoped to use the time-reversal time-domain focusing property. Therefore, it is first necessary to obtain the time-domain physical properties of the time-reversal signals at multiple different targets, and then a new detection method can be constructed based on these physical properties. Before deriving these physical properties, first establish the attached figure 1 Probe model shown.
[0069] Assume that there are S scattering targets in the space, respectively located at r s (1≤s≤S). For simplicity of derivation, here it is assumed that the signal sending array consists of only one signal sending unit, and it is located at r m ; and ignoring the time-domain nonlinear characteristics of the array unit, the transfer function between the array signal sending unit and...
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