Abstract

Methods which are MVDR beam-forming, STMV beamforming and a method using MVDR beamforming with copy correlation are using to measure highlight of targets echoes at low frequency. Compared with conventional beam-forming, the three methods restrain noise and resist reverberation better. To reduce calculation, firstly, as the azimuth measured by using Split array cross-correlation beamforming the center, and then the neighboring area scanned using MVDR focused beamforming. Therefore, this highlight of echoes research measures have high precision and practical.

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