# Matched shadow processing

## TL;DR

This paper introduces a novel matched shadow processing method that compares intensity distributions in a specific plane using quantum mechanics formalism, offering robustness against environmental model inaccuracies.

## Contribution

It proposes an alternative matched field processing approach based on intensity distributions and quantum formalism, enhancing robustness to environmental uncertainties.

## Key findings

- Reduced sensitivity to environmental model inaccuracies
- Effective comparison of intensity distributions in the depth--arrival angle plane
- Potential for improved accuracy in complex environments

## Abstract

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.