CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 3170 > Article
Paper
31 October 1997 Enhanced-resolution ERS-1 scatterometer imaging with irregular samples
David G. Long, David S. Early
Author Affiliations +
Proceedings Volume 3170, Image Reconstruction and Restoration II; (1997) https://doi.org/10.1117/12.279711
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States
Abstract
Scatterometers are low resolution radars originally designed o measure winds over the ocean from space. They measure the normalized radar backscatter coefficient from which the wind is estimated. Over land and ice (sigma) 0 is very sensitive to surface conditions and is useful for various scientific studies. Unfortunately, the low resolution of the measurements limits the application of the data. The scatterometer image reconstruction (SIR) algorithm can produce significantly enhanced resolution radar images by taking advantage of measurement overlap from multiple passes of the radar over the target site. The resulting measurements are on an irregular grid and may have different response functions making the analysis of the non-linear SIR algorithm very complicated. Analysis of SIR is further complicated by the fact that it is bivariate: two separate but related images (A and B) are determined from the (sigma) 0 measurements where (sigma) 0 is related to A and B by the expression (sigma) 0 equals A + B ((theta) - 40 degrees) where (theta) is the incidence angle of the measurement which varies from measurement to measurement. In this paper we provide a theoretical framework for scatterometer image reconstruction and resolution enhancement on irregular grids and provide examples of the resolution enhancement possible for the ERS-1 AMI scatterometer. The paper should be of interest to other researchers dealing with resolution enhancement on irregular grids.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
David G. Long and David S. Early "Enhanced-resolution ERS-1 scatterometer imaging with irregular samples", Proc. SPIE 3170, Image Reconstruction and Restoration II, (31 October 1997); https://doi.org/10.1117/12.279711
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 10 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Image enhancement
Radar
Resolution enhancement technologies
Image resolution
Detection and tracking algorithms
Image restoration
Reconstruction algorithms
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top