Holographic interferometry applied to characterize the near-field acoustic displacement patterns and dynamics of operating sonar arrays

Howard Fein

doi:10.1117/12.213099

5 July 1995 Holographic interferometry applied to characterize the near-field acoustic displacement patterns and dynamics of operating sonar arrays

Howard Fein

Author Affiliations +

Proceedings Volume 2485, Automatic Object Recognition V; (1995) https://doi.org/10.1117/12.213099
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

The dynamic acoustic information processed by a sonar array is of critical importance to target discrimination and recognition. A visualization of the true near-field acoustic energy distribution of an active sonar array would be of great value to understanding and characterizing the effects of structural defects in the array and its interface to the water medium. Knowledge of the projected near-field acoustic energy would also enhance the analysis of returned sonar signals for homing and target recognition. Holographic interferometry has presented itself as a viable and useful method for the realization of this type of information.

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Howard Fein "Holographic interferometry applied to characterize the near-field acoustic displacement patterns and dynamics of operating sonar arrays", Proc. SPIE 2485, Automatic Object Recognition V, (5 July 1995); https://doi.org/10.1117/12.213099

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