High frequency broadband acoustic channel estimation error analysis for St. Margaret's Bay during the UNET06 demonstrations

Authors

  • Paul J. Gendron ONR Visiting Scientist, Acoustics Div. Naval Research Lab., 4555 Overlook Ave. SW, Washington, DC 20024, United States
  • Carry J. Heard Defense Research Development Canada-Atlantic, 9 Grove St., Dartmouth, NS B3A 3C5, Canada

Keywords:

Acoustic noise, Channel capacity, Computational methods, Data recording, Error analysis, Telecommunication services, Channel response functions, Multimode pipe projector (MMPP), Underwater acoustic channels

Abstract

A computationally efficient estimator of the channel response function was developed to characterize the underwater acoustic channels adversity to communications for St. Margaret's Bay during the UNET06 demonstrations. The DRDC multimode pipe projector (MMPP) that provided a 185 dB// 1nPa@1m source level at 44 kHz center frequency was allowed to drift approximately 2 meters from the bottom in 70m of the water from the NRL ACDS 8-element vertical array. The receiver array was placed approximately mid water column and doubly spread acoustic channel was estimated from the recorded data sets by an augmented Kalman recursion. The Kalman recursion with a point estimate of the acoustic response function was used to compute channel estimate and covariance function. Analysis of the channel response function and histogram which measures the adversity of response estimation uncertainty relative to ambient noise showed the probing interval of duration of 6.25 seconds at a range of 500m.

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Published

2006-09-01

How to Cite

1.
Gendron PJ, Heard CJ. High frequency broadband acoustic channel estimation error analysis for St. Margaret’s Bay during the UNET06 demonstrations. Canadian Acoustics [Internet]. 2006 Sep. 1 [cited 2021 Oct. 28];34(3):116-7. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1849

Issue

Section

Proceedings of the Acoustics Week in Canada