Difference: TLA (4 vs. 5)

Revision 516 Oct 2009 - ShankarSatish

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META TOPICPARENT name="Research"

Lightweight Array Technologies

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Under this research program, new towed array technologies suitable for operation from AUVs and USVs are developed. Such arrays would aid multiple AUVs and USVs in many underwater surveillance and imaging applications. Two technologies are currently being explored:
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Under this research program, new towed array technologies suitable for operation from AUVs and USVs are developed. Such arrays would aid multiple AUVs and USVs in many underwater surveillance and imaging applications. Two technologies are currently being explored:
 
  • Arrays employing ceramic hydrophone based sensing technology
  • Arrays based on fiber laser sensor based hydrophones
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Apart from shear engineering challenges in realizing such a small array configuration, there are many technical and scientific questions that remains to be answered in order to understand the performance envelope and usability of the system for underwater applications. Our research efforts are towards characterizing the array performance against many interfering noises such as electronic noise, flow noise and vibration.
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Apart from the sheer engineering challenges in realizing such a small array configuration, there are many scientific questions that remain to be answered in order to understand the performance envelope and usability of the system for underwater applications. Our research efforts focus on characterizing the array performance against many interfering noises such as electronic noise, flow noise and vibration.
 

Digital Thin Line Array (DTLA)

ARL has developed a small diameter towed array measuring just 10.5 mm in external diameter and about 30 m long with a tow lead of 20 m. The array consists of 11 acoustic sensors, one electronic compass and a pressure sensor. The array has been towed behind an AUV and some of the findings from this exercise have been published [??].

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