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http://dx.doi.org/10.5050/KSNVN.2009.19.10.987

Beam Analysis of Underwater Conformal Array by Using Cylindrical Acoustic Holography  

Kwon, Hyu-Sang (한국표준과학연구원)
Park, Seong-Chol (한국표준과학연구원)
Seo, Hee-Seon (국방과학연구소)
Shin, Gu-Kyun (국방과학연구소)
Joh, Ghee-Young (국방과학연구소)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.19, no.10, 2009 , pp. 987-995 More about this Journal
Abstract
As an experimental technique to analyze the far-field characteristics of underwater cylindrical array sensors, cylindrical acoustic holography is studied. Inside an laboratory water tank, far-field directivity patterns as well as near-field source images are reconstructed from the measured hologram by hydrophone array. Approximate equation for far-field directivity estimation is derived based on stationary phase method. The simulation and experiment show well usefulness of the proposed method in application of underwater array sensors.
Keywords
Cylindrical Acoustic Holography; Underwater Array Sensor; Beam Pattern; Stationary Phase;
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