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- W4246399054 abstract "Acoustic triangulation applications are widely used in the submarine domain to estimate 3D-coordinates of a free model or buoy localization for example. Accuracy of positioning is dominated by the perfect knowledge of sound celerity in the domain and also by temporal synchronization. This short communication deals with the use of Barker audio code signals in order to improve temporal detection. Indeed, properties of such signals allow performing correlation with over-sampling detection like spatial sub-pixel algorithms in image processing domain. The first part of the communication presents these kinds of signals and theoretical expected performances with very low signal to noise ratio. The second part is dedicated to the results obtained with an academic experiment devoted to measure directivity pattern of a submarine acoustic source. In order to decrease uncertainty of this measurement, an over-sampling algorithm has been used successfully to estimate the position of the source during its displacement. This experimental setup allows in return a good angular resolution and an accurate estimate of the directivity pattern." @default.
- W4246399054 created "2022-05-12" @default.
- W4246399054 creator A5033854338 @default.
- W4246399054 date "2017-01-01" @default.
- W4246399054 modified "2023-10-12" @default.
- W4246399054 title "Over-sampling improvement for acoustic triangulation using Barker code audio signals" @default.
- W4246399054 doi "https://doi.org/10.1121/2.0000624" @default.
- W4246399054 hasPublicationYear "2017" @default.
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