An experimental demonstration of detection of acoustic aberration caused by submerged intruder in littoral water based on WRELAX - NRTR

摘要

The strong “direct blast” and space-time varying environment lead to significant difficulty in the detection of the submerged target that makes acoustic aberrations occur due to forward scattering. An improved acoustic aberration detection method called WRELAX-NRTR is provided which combining the nonreciprocal time reversal with a high-resolution channel estimation technique WRELAX. An experiment with a diver target conducted in the shallow littoral environment would verify that the proposed algorithm could efficiently achieve the target detection with higher detection probability.