First Bistatic Spaceborne SAR Experiments With TanDEM-X

Rodríguez-Cassolà, Marc; Prats, Pau; Schulze, Daniel; Tous-Ramon, Nuria; Steinbrecher, Ulrich; Marotti, Luca; Nannini, Matteo; Younis, Marwan; López-Dekker, Paco; Zink, Manfred; Reigber, Andreas; Krieger, Gerhard; Moreira, Alberto

doi:10.1109/lgrs.2011.2158984

Cited by 84 publications

(47 citation statements)

References 8 publications

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“…The TerraSAR-X mission has been extended into the TanDEM-X mission [13] with the purpose of generating global Digital Elevation Model from radar interferometry. This is the first bistatic system in orbit, and it successfully provided bistatic images of urban features [14]. However, its quasi-monostatic configuration does not appear suitable to observe vegetated surfaces whose directional scattering properties can be detected under large bistatic angles, as will be shown in this study.…”

Section: Open Accessmentioning

confidence: 90%

Use of Satellite Radar Bistatic Measurements for Crop Monitoring: A Simulation Study on Corn Fields

et al. 2013

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This paper presents a theoretical study of microwave remote sensing of vegetated surfaces. The purpose of this study is to find out if satellite bistatic radar systems can provide a performance, in terms of sensitivity to vegetation geophysical parameters, equal to or greater than the performance of monostatic systems. Up to now, no suitable bistatic data collected over land surfaces are available from satellite, so that the electromagnetic model developed at Tor Vergata University has been used to perform simulations of the scattering coefficient of corn, over a wide range of observation angles at L-and C-band. According to the electromagnetic model, the most promising configuration is the one which measures the VV or HH bistatic scattering coefficient on the plane that lies at the azimuth angle orthogonal with respect to the incidence plane. At this scattering angle, the soil contribution is minimized, and the effects of vegetation growth are highlighted.

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Section: Open Accessmentioning

confidence: 90%

Use of Satellite Radar Bistatic Measurements for Crop Monitoring: A Simulation Study on Corn Fields

et al. 2013

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“…Several bistatic experiments were already conducted during the TanDEM-X commissioning phase , (Rodriguez-Cassola et al, 2012), (Lopez-Dekker et al, 2011). To foster the development of further innovative bistatic and multistatic SAR techniques (Cloude et al, 1998), TanDEM-X is operated in a dedicated science phase from October 2014 until December 2015 (Hajnsek, 2015).…”

Section: Tandem-x Science Phasementioning

confidence: 99%

Tandem-X Mission Status

Zink¹

2015

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurements) is an innovative formation flying radar mission that opens a new era in spaceborne radar remote sensing. Its primary objective is the acquisition of a global Digital Elevation Model (DEM) with unprecedented accuracy (12 m horizontal resolution and 2 m relative height accuracy). This goal is achieved by extending the TerraSAR-X synthetic aperture radar (SAR) mission by a second TerraSAR-X like satellite, TanDEM-X (TDX). Both satellites fly in close orbit formation of a few hundred meters distance, and the resulting large single-pass SAR interferometer features flexible baseline selection enabling the acquisition of highly accurate cross-track interferograms not impacted by temporal decorrelation and atmospheric disturbances. Beyond the global DEM, several secondary mission objectives based on along-track interferometry as well as new bistatic and multistatic SAR techniques have been defined. Since 2010 both satellites have been operated in close formation to map all land surfaces at least twice and difficult terrain even up to four times. While data acquisition for the DEM generation will be concluded by the end of 2014 it is expected to complete the processing of the global DEM in the second half of 2016.

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“…Various BSAR topologies have been proposed, using spaceborne, airborne or even fixed platforms [1][2][3][4], and their relative merits and drawbacks have been investigated.…”

Section: Introductionmentioning

confidence: 99%

GNSS-based bistatic SAR: a signal processing view

Antoniou

Cherniakov

2013

EURASIP J. Adv. Signal Process.

121

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This article presents signal processing algorithms used as a new remote sensing tool, that is passive bistatic SAR with navigation satellites (e.g. GPS, GLONASS or Galileo) as transmitters of opportunity. Signal synchronisation and image formation algorithms are described for two system variants: one where the receiver is moving and one where it is fixed on the ground. The applicability and functionality of the algorithms described is demonstrated through experimental imagery that ultimately confirms the feasibility of the overall technology.

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First Bistatic Spaceborne SAR Experiments With TanDEM-X

Cited by 84 publications

References 8 publications

Use of Satellite Radar Bistatic Measurements for Crop Monitoring: A Simulation Study on Corn Fields

Use of Satellite Radar Bistatic Measurements for Crop Monitoring: A Simulation Study on Corn Fields

Tandem-X Mission Status

GNSS-based bistatic SAR: a signal processing view

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