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Automatic Extraction of Traffic Flows Using TerraSAR-X Along-Track Interferometry

Suchandt, Steffen and Runge, Hartmut and Breit, Helko and Steinbrecher, Ulrich and Kotenkov, Alexander and Balss, Ulrich (2010) Automatic Extraction of Traffic Flows Using TerraSAR-X Along-Track Interferometry. IEEE Transactions on Geoscience and Remote Sensing, Volume 48 (Issue 2), pp. 807-819. IEEE Geoscience and Remote Sensing Society. DOI: 10.1109/TGRS.2009.2037919.

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Official URL: http://ieeexplore.ieee.org

Abstract

Spaceborne synthetic aperture radar (SAR) offers great potential for the measurement of ground traffic flows. A SAR with multiple receiving apertures aligned in flight direction repeatedly images the same ground area with a short time lag. This allows for an effective detection of moving ground objects, whose range variation translates into an interferometric phase signal between the receiving channels. The high-resolution German SAR satellite TerraSAR-X offers several ways to create multiple along track apertures. We exploit this to demonstrate satellite-based traffic-flow measurements using along-track interferometry (ATI) and Displaced Phase Center Array techniques. In this paper, we address the usage of different TerraSAR-X ATI modes for data acquisition and describe an automatic near-real-time processing chain for the extraction of traffic information. The performance of this TerraSAR-X traffic processor is significantly driven by incorporating a priori knowledge of road networks. We present examples of automatic traffic detection as well as empirical evaluations thereof using different kind of reference data.

Document Type:Article
Title:Automatic Extraction of Traffic Flows Using TerraSAR-X Along-Track Interferometry
Authors:
AuthorsInstitution or Email of Authors
Suchandt, SteffenGerman Aerospace Center (DLR)
Runge, HartmutGerman Aerospace Center (DLR)
Breit, HelkoGerman Aerospace Center (DLR)
Steinbrecher, UlrichGerman Aerospace Center (DLR)
Kotenkov, AlexanderGerman Aerospace Center (DLR)
Balss, UlrichGerman Aerospace Center (DLR)
Date:February 2010
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:Volume 48
DOI:10.1109/TGRS.2009.2037919
Page Range:pp. 807-819
Editors:
EditorsEmail
Ruf, Christopher S., cruf@umich.eduUNSPECIFIED
Publisher:IEEE Geoscience and Remote Sensing Society
Series Name:IEEE Transactions and Geoscience and Remote Sensing
Status:Published
Keywords:Along-track interferometry (ATI), synthetic aperture radar (SAR), TerraSAR-X, traffic measurement
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Traffic Management
DLR - Research area:Transport
DLR - Program:V VM - Verkehrsmanagement
DLR - Research theme (Project):V - TerraSAR-X Verkehrsprodukte (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Spaceborne SAR Systems
Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Steffen Suchandt
Deposited On:05 Feb 2010 15:37
Last Modified:07 Feb 2013 20:23

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