Suitability of COSMO-SkyMed constellation for radargrammetric DEM generation

Domenico Conte; Fabio Bovenga; Alberto Refice; Davide O. Nitti; Raffaele Nutricato; Maria T. Chiaradia

doi:10.1117/12.2066846

21 October 2014 Suitability of COSMO-SkyMed constellation for radargrammetric DEM generation

Domenico Conte, Fabio Bovenga, Alberto Refice, Davide O. Nitti, Raffaele Nutricato, Maria T. Chiaradia

Proceedings Volume 9243, SAR Image Analysis, Modeling, and Techniques XIV; 924302 (2014) https://doi.org/10.1117/12.2066846
Event: SPIE Remote Sensing, 2014, Amsterdam, Netherlands

Abstract

The COSMO-SkyMed (CSK) constellation acquires data from its four SAR X-band satellites in several imaging modes, providing in particular different view angles. The present work investigates the potential of CSK constellation for ground elevation measurement through SAR radargrammetry. We selected an area around Parkfield (California), where several CSK acquisitions are available. We used for radargrammetric processing 2 CSK spotlight image pairs acquired at 1 day of separation, in Same Side Viewing configuration, with baselines of 350 km. Furthermore, a dataset of 33 spotlight images were selected to derive height measurements through both persistent scatterers interferometry(PSI) and interferometric processing of 5 1-day separated pairs included in the dataset. We first predict how the errors in the geometrical parameters and the correlation level between the images impact on the height accuracy. Then, two DEMs were derived by processing the radargrammetric CSK pairs. According to the outcomes of the feasibility analysis, processing parameters were chosen in order to guarantee nominal values of height accuracy within the HRTI Level 3 specifications. The products have a final resolution of 3 m. In order to assess the accuracy of these radargrammetric DEMs, we used the height values provided by the PSI, and an interferometric DEM derived from the CSK tandem-like pairs.

Citation Download Citation

Domenico Conte, Fabio Bovenga, Alberto Refice, Davide O. Nitti, Raffaele Nutricato, and Maria T. Chiaradia "Suitability of COSMO-SkyMed constellation for radargrammetric DEM generation", Proc. SPIE 9243, SAR Image Analysis, Modeling, and Techniques XIV, 924302 (21 October 2014); https://doi.org/10.1117/12.2066846

ACCESS THE FULL ARTICLE

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
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Synthetic aperture radar

Interferometry

Image processing

Interferometric synthetic aperture radar

Error analysis

Satellites

Chromium

Show All Keywords

Keywords/Phrases

Search In:

Publication Years