Broadband sensor system and technique for detection and classification of targets and subsurface targets

Gee-In Goo

doi:10.1117/12.365704

15 October 1999 Broadband sensor system and technique for detection and classification of targets and subsurface targets

Gee-In Goo

Author Affiliations +

Proceedings Volume 3752, Subsurface Sensors and Applications; (1999) https://doi.org/10.1117/12.365704
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

In this paper, the author discusses a Broadband Bionic Sonar Sensor System and a signal processing technique for detection and identification of underwater targets. This bionic sonar system with the resonance detection technique for detection and identification of underwater objects appears to mimic a dolphin's sensory system. The dolphin's sonar system transmits a very short broadband pulse. It detects and classifies a target by processing the modulation of the echo's (back scattering) broadband spectrum. This spectral modulation is directly related to the target's natural resonance. Using the G-Transform technique, the author has successfully showed that target resonance exists and it is unique to target size, shape, structure and material composition. Furthermore, this natural resonance exists in both (active sonar) acoustic echoes, back scattering and (passive sonar) acoustic scattering in acoustic noise background. Using trained neural networks, these targets' resonances/signatures can be correctly identified for the respective targets. It is conceivable that a broadband radar system, similar to a dolphin's sonar system, can be developed for targets and subsurface targets.

Citation Download Citation

Gee-In Goo "Broadband sensor system and technique for detection and classification of targets and subsurface targets", Proc. SPIE 3752, Subsurface Sensors and Applications, (15 October 1999); https://doi.org/10.1117/12.365704

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