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Author Teixeira, M. ♦ Capella, J.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1996
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Time frequency analysis ♦ Solitons ♦ Sensor arrays ♦ Temperature sensors ♦ Fourier transforms ♦ Ocean temperature ♦ Time series analysis ♦ Underwater tracking ♦ Signal analysis ♦ Wavelet analysis
Abstract Time-frequency and time-scale analysis methods are used to detect solitons, south of Puerto Rico, in the Caribbean Sea. A string of underwater sensors, deployed at particular depths, produced various temperature time series currently being analyzed for soliton detection. Different causes, such as a non-optimal placement of the sensor array in time or space, could yield a weak soliton signature deeply buried within the signal. Underwater sensor deployment is expensive, thus, the analysis methods were calibrated by incorporating a synthetic soliton into the original signal. Its parameters, such as peak amplitude, peak to peak distance and number of peaks, among others, were varied in order to "ground truth" the analysis results. The short time Fourier transform (STFT) and wavelet transform (WT) were used to analyze the data. The combined assessment of results, obtained through different methods, were used to pinpoint possible solitons in the time domain.
Description Author affiliation: Dept. of Marine Sci., Puerto Rico Univ., Mayaguez, Puerto Rico (Teixeira, M.)
ISBN 0780335120
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1996-06-18
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 329.09 kB
Page Count 4
Starting Page 353
Ending Page 356

Source: IEEE Xplore Digital Library