Ground Moving Target Indication With Tandem Satellite Constellations

Ground moving target indication (GMTI) from space by existing dual-channel radar systems such as TerraSAR-X and RADARSAT-2 has been shown to perform only insufficiently with respect to the relocation error of targets to their true ground position. Only two parallel receiver channels are too little t...

Full description

Saved in:
Bibliographic Details
Published in:IEEE geoscience and remote sensing letters 2008-10, Vol.5 (4), p.710-714
Main Authors: Gierull, C.H., Cerutti-Maori, D., Ender, J.
Format: Article
Language:English
Subjects:
Aperture antennas
Apertures
Channels
Clutter
Flight
Grounds
Indication
Monitoring
Moving targets
Parameter estimation
Phased array radar
Radar detection
Radar measurements
Radar signal processing
radar velocity measurement
road vehicle location monitoring
Satellite constellations
Spaceborne radar
Synthetic aperture radar
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ground moving target indication (GMTI) from space by existing dual-channel radar systems such as TerraSAR-X and RADARSAT-2 has been shown to perform only insufficiently with respect to the relocation error of targets to their true ground position. Only two parallel receiver channels are too little to suppress the severe ground clutter and to estimate the target's parameters. Although this deficiency may partly be alleviated through antenna aperture switching, the resulting positioning accuracy is still not adequate for effective traffic monitoring purposes. Satisfactory results are only achievable with extended apertures, primarily with satellite constellations. This letter presents a statistical analysis of the performance of different concepts for cooperating back-to-back flying satellite systems. Particularly in anticipation of TanDEM-X, which will form the first operational GMTI-capable coherent synthetic aperture radar constellation after its launch in 2009.
ISSN:1545-598X
1558-0571
DOI:10.1109/LGRS.2008.2004360