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Digital Beamforming for HRWS-SAR Imaging: System Design, Performance and Optimization Strategies
2006
2006 IEEE International Symposium on Geoscience and Remote Sensing
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Multi-aperture synthetic aperture radar (SAR) systems in combination with an appropriate coherent processing of the individual aperture signals enable high resolution wide swath (HRWS) SAR imaging [1]- ...
Further, optimization strategies are discussed to maximize the system's performance by pattern tapering on transmit and "Pre-Beamshaping on Receive" networks that allow for pattern tapering on receive ...
Main parameters of the investigated HRWS SAR system. ...
doi:10.1109/igarss.2006.474
dblp:conf/igarss/GebertKM06
fatcat:jgorv2a3fzhzpe4pxlq6piu6ju
Multi-channel Feedarray Reflector Antenna Based Radar Concept for HRWS SAR Imaging
2021
2021 IEEE Radar Conference (RadarConf21)
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The paper describes a preliminary design and architecture of the SAR system and antenna where different design aspects including beamforming concepts and feedarray implementation techniques have been identified ...
The presented work shows the design of a multichannel L-band SAR system and antenna architecture based on different feeders techniques which is suitable for next generation L-band SAR missions and capable ...
CONCLUSION In this paper, a L-band multi-channel feedarray reflector antenna based SAR system concept has been presented as suitable architecture for next generation HRWS SAR missions based on digital ...
doi:10.1109/radarconf2147009.2021.9455206
fatcat:73lutwbbrzganf6vmfol55zbte
Multidimensional waveform encoding for spaceborne synthetic aperture radar systems
2007
2007 International Waveform Diversity and Design Conference
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The combination of this technique with digital beamforming on receive enables a new generation of SAR systems with improved performance and flexible imaging capabilities. ...
Implementation specific issues will be discussed and performance examples demonstrate the potential of the new technique for different remote sensing applications. ...
The full exploitation of all opportunities arising from such an adaptive multidimensional waveform encoding requires of course new SAR system design and optimization strategies. ...
doi:10.1109/wddc.2007.4339427
fatcat:jks54urobvbvveojj52r3qypbq
Multidimensional radar waveforms a new paradigm for the design and operation of highly performant spaceborne synthetic aperture radar systems
2007
2007 IEEE International Geoscience and Remote Sensing Symposium
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The combination of this technique with digital beamforming on receive enables a new class of highly performant SAR systems employing novel and highly flexible radar imaging modes. ...
, and the implementation of hybrid SAR imaging modes that are well suited to satisfy the hitherto incompatible user requirements for frequent monitoring and detailed mapping. ...
The full exploitation of all opportunities arising from such an adaptive multidimensional waveform encoding requires of course new SAR system design and optimization strategies. ...
doi:10.1109/igarss.2007.4423969
dblp:conf/igarss/KriegerGM07
fatcat:z4z3wnfkm5gjvo373atldlndue
Advanced synthetic aperture radar based on digital beamforming and waveform diversity
2008
2008 IEEE Radar Conference
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This paper introduces innovative SAR system concepts for the acquisition of high resolution radar images with wide swath coverage from spaceborne platforms. ...
The more advanced concepts employ a multidimensional encoding of the transmitted waveforms to further improve the performance and to enable a new class of hybrid SAR imaging modes that are well suited ...
The full exploitation of all opportunities arising from such an adaptive multidimensional waveform encoding requires of course new SAR system design and optimization strategies. ...
doi:10.1109/radar.2008.4720875
fatcat:wbxnhlgf45dxlao2srgpijxnmy
German Spaceborne SAR Missions
2021
2021 IEEE Radar Conference (RadarConf21)
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The paper concludes with an overview of the innovative concepts, technologies, imaging techniques and applications planned for the future national SAR missions Tandem-L and HRWS. ...
A global, highresolution digital elevation model (DEM) of the Earth's surface with unprecedented accuracy has been generated and made available for a broad community since 2016. ...
Future SAR mission concepts with digital beamforming technology like Tandem-L, HRWS, NISAR, ROSE-L, ALOS-4 and Sentinel-1NG are being developed which will outperform the imaging capacity of current SAR ...
doi:10.1109/radarconf2147009.2021.9455326
fatcat:42vaxlvdyvg5lountil55thfvu
Multidimensional Waveform Encoding: A New Digital Beamforming Technique for Synthetic Aperture Radar Remote Sensing
2008
IEEE Transactions on Geoscience and Remote Sensing
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The combination of this technique with digital beamforming on receive enables a new generation of SAR systems with improved performance and flexible imaging capabilities. ...
Implementationspecific issues are discussed and performance examples demonstrate the potential of the new technique for different remote sensing applications. ...
ACKNOWLEDGMENT The authors would like to thank the anonymous reviewers for their valuable comments and suggestions to improve the readability of this paper. ...
doi:10.1109/tgrs.2007.905974
fatcat:ovmmog5dkngtjjoefu6ljc4psu
Experimental Performance Investigation of Digital Beamforming on Synthetic Aperture Radar
2008
IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium
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Index Terms-digital beamforming, ground-based demonstrator, SAR, HRWS SAR ...
In this paper, we present the experimental results of a Digital Beam Forming (DBF) Synthetic Aperture Radar (SAR) performance on the purpose of the High-Resolution Wide-Swath (HRWS) SAR concept. ...
Therefore an optimization strategy in practical system design will be studied in future work. ...
doi:10.1109/igarss.2008.4780056
dblp:conf/igarss/KimYW08
fatcat:kurymjmgljhgfptf57ws2tjiry
Digital Beamforming on Receive: Techniques and Optimization Strategies for High-Resolution Wide-Swath SAR Imaging
2009
IEEE Transactions on Aerospace and Electronic Systems
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Synthetic Aperture Radar (SAR) is a well-proven imaging technique for remote sensing of the Earth. ...
The focus is then turned to a complete high-resolution wide-swath SAR system design example which demonstrates the intricate connection between multi-aperture azimuth processing and the system architecture ...
OPTIMIZATION POTENTIALS In a further step, strategies for optimizing the SAR system performance are developed. ...
doi:10.1109/taes.2009.5089542
fatcat:zhjycr7vnzdr5fksiw2pqaedoe
Multichannel Staggered SAR Azimuth Processing
2018
IEEE Transactions on Geoscience and Remote Sensing
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Since these are contradicting drivers in terms of system design, different alternatives for High-Resolution Wide Swath (HRWS) SAR imaging have been investigated, relying on digital beamforming (DBF) and ...
This paper introduces and analyzes in detail processing techniques suitable for the combination of these techniques, leading to novel multichannel Staggered SAR imaging modes with the potential for very ...
Section IV.B in contrast introduces a new system design and analyses its SAR performance over the whole swath.
A. ...
doi:10.1109/tgrs.2017.2783444
fatcat:vqjem4hakjgzvakmenhw5lx5ku
The High-Resolution Digital-Beamforming Airborne SAR System DBFSAR
2020
Remote Sensing
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Airborne SAR sensors with digital beamforming capabilities are essential tools to research and validate this important technology for later implementation on a satellite. ...
Currently, the Microwaves and Radar Institute of the German Aerospace Center (DLR) is developing a new advanced high-resolution airborne SAR system with digital beamforming capabilities, the so-called ...
Summarizing, digital beamforming can be seen as an upcoming key technology for future SAR systems, allowing a significantly enhanced imaging flexibility and performance. ...
doi:10.3390/rs12111710
fatcat:3wdymkmmczf4pp2yb2uxm7qsya
Elevation Multi-Channel Imbalance Calibration Method of Digital Beamforming Synthetic Aperture Radar
2022
Remote Sensing
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The digital beamforming synthetic aperture radar (DBF-SAR) is proposed by scholars as a promising solution to overcome the constraint of the minimum antenna area of the traditional single-channel SAR to ...
achieve high resolution and wide swath (HRWS) by scan-on-receive (SCORE) in the elevation multiple channel. ...
DBF-SAR in system design. ...
doi:10.3390/rs14174350
fatcat:64kwa4vk2jbqjbiaawzzoto4cy
Spaceborne Reflector SAR Systems with Digital Beamforming
2012
IEEE Transactions on Aerospace and Electronic Systems
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This article provides a hardware concept study based on a design in X-band. Focus is put on DBF algorithms adopted to the SAR case and important performance figures are derived. ...
The development for future radar satellites is therefore towards digital beamforming (DBF) systems where the analogous receiver hardware is replaced by digital components. ...
DIGITAL BEAMFORMING CONCEPTS The next sections cover the digital signal processing strategies based upon a SAR signal model. The beamforming techniques are separated in elevation and azimuth.
A. ...
doi:10.1109/taes.2012.6324728
fatcat:qnoggd4u2nadha56d3vp7skaou
MirrorSAR: An HRWS Add-On for Single-Pass Multi-Baseline SAR Interferometry
2021
IEEE Transactions on Geoscience and Remote Sensing
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A comprehensive system engineering and performance analysis is provided that includes orbit formation, MirrorLink, Doppler steering, antenna pattern and swath design, multi-static echo window timing, SAR ...
The overall interferometric system design analysis of Phase A is presented. ...
For more information, see https://creativecommons.org/licenses/by-nc-nd/4.0/ ...
doi:10.1109/tgrs.2021.3132384
fatcat:gk3trb4735eczf44t7raxxtzjq
First Spaceborne Demonstration of Digital Beamforming for Azimuth Ambiguity Suppression
2013
IEEE Transactions on Geoscience and Remote Sensing
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Index Terms-Azimuth ambiguity suppression, digital beamforming (DBF), high-resolution wide-swath (HRWS) SAR imaging, reconstruction algorithm, synthetic aperture radar (SAR), TerraSAR-X dual receive antenna ...
The experimental results exhibit the successful ambiguity suppression capability of the DBF and validate the high potential of the DBF both for advanced future and current SAR systems. ...
Therefore, this demonstration is of high importance for the implementation of future SAR systems, based on the HRWS imaging concept. ...
doi:10.1109/tgrs.2012.2201947
fatcat:ql6n7decdrc2tatimit3lrp5qu
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