Code design and performance characterization for code multiplexed imaging

Jaffe, Jules S.; Cassereau, P.M.; Glassbrenner, D.J.

doi:10.1109/29.57567

Cited by 12 publications

(1 citation statement)

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“…Even though the propagation of sound in the ocean is slow ( 1500m/s), compared to the speed of lighk, large aperture devices which use large time bandwidth projects have the most potential to optimize various measures of performance. For one example of the use of large time bandwidth products to obtain more rapid sonar images see [8].…”

Section: Introductionmentioning

confidence: 99%

High frequency acoustic imaging in the ocean

Jaffe

Chandran

Reuss

1995 International Conference on Acoustics, Speech, and Signal Processing

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The use of acoustical techniques in oceanography is well known. Traditional applications have concentrated on long range, low frequency propagation. More recently, due a convergence of both technology and national interests, consideration of the possibilities for creating high frequency, real time, multi-dimensional imaging systems (2 and 3-D) has emerged. Unfortunately, due to a lack of experimental investigation, the propagation issues related to these frequencies are relatively unknown. Our group in underwater acoustic imaging applied to ocean exploration and oceanography has been taking high frequency acoustic pictures in the ocean for almost a decade. Our first experiences were in using the traditional types of ocean going sonars such as side scans. More recently we have been developing a 3-dimensional multibeam imaging system for tracking small animals in the sea. As part of this effort we have been looking a t both the spatial and temporal correlation scales for the propagation of high frequency sound.

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Section: Introductionmentioning

confidence: 99%