Next Article in Journal
Photo-Induced Force Microscopy by Using Quartz Tuning-Fork Sensor
Next Article in Special Issue
A Data-Driven Approach to SAR Data-Focusing
Previous Article in Journal
Evaluation on Context Recognition Using Temperature Sensors in the Nostrils
Previous Article in Special Issue
Refocusing Moving Ship Targets in SAR Images Based on Fast Minimum Entropy Phase Compensation
Article Menu
Issue 7 (April-1) cover image

Export Article

Open AccessArticle

Simulation and Analysis of SAR Images of Oceanic Shear-Wave-Generated Eddies

1,2,3, 1,2 and 1,2,*
1
National Key Lab of Microwave Imaging Technology, Beijing 100190, China
2
Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China
3
School of Electronics, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 101408, China
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(7), 1529; https://doi.org/10.3390/s19071529
Received: 23 February 2019 / Revised: 16 March 2019 / Accepted: 26 March 2019 / Published: 29 March 2019
(This article belongs to the Special Issue Synthetic Aperture Radar (SAR) Techniques and Applications)
  |  
PDF [9314 KB, uploaded 29 March 2019]
  |  

Abstract

Synthetic Aperture Radar (SAR) is widely used in oceanic eddies research. High-resolution SAR images should be useful in revealing eddy features and investigating the eddy imaging mechanism. However, SAR imaging is affected by various radar parameters and environmental factors, which makes it quite difficult to learn directly from SAR eddy images. In order to interpret and evaluate eddy images, developing a proper simulation method is necessary. However, seldom has a SAR simulation method for oceanic eddies, especially for shear-wave-generated eddies, been established. As a step forward, we propose a simulation method for oceanic shear-wave-generated eddies. The Burgers-Rott vortex model is used to specify the surface current field of the simulated eddies. Images are then simulated for a range of different radar frequencies, radar look directions, wind speeds, and wind directions. The results show that the simulated images are consistent with actual SAR images. The effects of different radar parameters and wind fields on SAR eddy imaging are analyzed by qualitative and quantitative methods. Overall, the simulated images produce a surface pattern and brightness variations with characteristics resembling actual SAR images of oceanic eddies. View Full-Text
Keywords: oceanic eddies; shear-wave-generated eddies; burgers-Rott vortex model; SAR image simulation oceanic eddies; shear-wave-generated eddies; burgers-Rott vortex model; SAR image simulation
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Wang, Y.; Yang, M.; Chong, J. Simulation and Analysis of SAR Images of Oceanic Shear-Wave-Generated Eddies. Sensors 2019, 19, 1529.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top