By Topic

Spectral analysis of waves on the ocean surface using high resolution time frequency representations

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Grassin, S. ; Telecom Bretagne, France ; Garello, R.

The use of equivalent time-frequency representations for image spectral analysis purpose is shown in this paper. The term equivalent time-frequency representation (ETFR) is proposed for time-frequency representation (TFR) generalized to images, in order to distinguish them from the TFR of the 1D signals. The generalizations of some well known tips (Hilbert transform and interpolation) used when dealing with 1D signals are reminded. Problems that occur due to the bidimensional nature of images are pointed out. The way of deriving ETFR from TFR is explained through the generalization of the kernel. That point is thoroughly described and justified. The way of getting High-Resolution TFRs or ETFRs is indicated. Applications on SAR images of the ocean surface are presented. The authors show how ETFR can be used for image spectral analysis purposes, namely estimation of the swell or of internal waves in their case

Published in:

Electronic Engineering in Oceanography, 1997. Technology Transfer from Research to Industry., Seventh International Conference on

Date of Conference:

23-25 Jun 1997