Matched shadow processing

Traditional matched field processing is based on the comparison of the complex amplitudes of the measured and calculated wave fields at the aperture of the receiving antenna. This paper considers an alternative approach based on comparing the intensity distributions of these fields in the "depth -- arrival angle" plane. To construct these intensities, the formalism of coherent states borrowed from quantum mechanics is used. The main advantage of the approach under consideration is its low sensitivity to the inevitable inaccuracy of an environmental model used in calculation.