Results 111 to 120 of about 149,695 (146)
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Multistatic Scenarios for a GPS SAR System
IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008This paper presents research results in space-surface multistatic synthetic aperture radar (SS-MSAR) with non-cooperative GPS satellites. The effect of the system's geometry is investigated. We will show that in SS-MSAR, the spatial resolution depends on the geometry of the system, i.e.
Maussang, Frederic +3 more
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Analysis of Multistatic Pixel Correlation in SAR
IEEE Transactions on Geoscience and Remote Sensing, 2015The field of wireless communications has benefited from multiple-input and multiple-output (MIMO) techniques. As researchers seek to apply MIMO (multistatic) techniques to radar and specifically to synthetic aperture radar (SAR), a key factor in determining MIMO application and performance is the level of correlation of signals from different receiver ...
Michael I. Duersch, David G. Long
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Autofocus in multistatic passive SAR imaging
2008 IEEE International Conference on Acoustics, Speech and Signal Processing, 2008Synthetic aperture radar (SAR) imaging suffers from image focus degradation in the presence of phase errors in the received signals due to unknown platform or target motion. We study automatic focusing (autofocus) under a multistatic passive scenario, where the illumination is provided by a set of stationary UHF transmitters and the goal is to image a ...
Kuang-Hung Liu, David C. Munson
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Random sampling strategies in multistatic SAR
2008 IEEE International Conference on Acoustics, Speech and Signal Processing, 2008We introduce and investigate the concept of random sampling to the problem of image reconstruction in a multistatic SAR system. We first develop an appropriate figure of merit for the invertibility of the measurement data. We then show numerical simulations of a particular random measurement process under various parameters and compare the performance ...
Jonathan D. Coker, Ahmed H. Tewfik
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An Innovative Superpolyhedron (SP) Formation for Multistatic SAR (M-SAR) Interferometry
IEEE Transactions on Geoscience and Remote Sensing, 2021Spaceborne multistatic synthetic aperture radar (M-SAR) has extensive applications, including multiangle imaging, digital beamforming (DBF) and cross- and along-track interferometry. However, it is difficult for classical satellite formations to meet the multimission (e.g., cross-track interferometry and along-track interferometry, i.e., XTI and ATI ...
Yanyan Zhang 0002 +5 more
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Potential of digital beamforming in bi- and multistatic SAR
IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477), 2004Digital beamforming on receive is an innovative concept to gather additional information about the direction of scattered radar echoes during the acquisition of synthetic aperture radar (SAR) images. This additional information can be used to suppress range and azimuth ambiguities, to improve geometric and/or radiometric resolution, and to increase the
Krieger, Gerhard, Moreira, Alberto
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Passive Multistatic SAR With GNSS Transmitters: Preliminary Experimental Study
, 2014 This paper presents preliminary experimental results on passive multistatic SAR exploiting navigation satellites as transmitters of opportunity and a stationary receiver.
Debora Pastina +2 more
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Anti-Deceptive Jamming of Jammer on the Coast for Multistatic Sar
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021Multistatic SAR can obtain information from different angles simultaneously, it has application potential in many fields. However, it still be affected by jammers. When deceptive jammers jamming the SAR system, the false target is generated in the SAR image.
Wenjing Wang +4 more
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A Technique for Jamming Bi- and Multistatic SAR Systems
IEEE Geoscience and Remote Sensing Letters, 2007Bi- and multistatic synthetic aperture radars (SARs) can achieve reduced vulnerability in military systems, especially in directional responsive jamming, and avoid physical attack to radar platforms. In this letter, a technique for jamming bi- and multistatic SAR systems is proposed, which is implemented with a novel transponder.
Wen-Qin Wang, Jingye Cai
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Performance Synthesis of UAV Trajectories in Multistatic SAR
IEEE Transactions on Aerospace and Electronic Systems, 2011We develop guidelines for the design and analysis of unmanned aerial vehicle (UAV) trajectories for the purpose of high-quality image reconstructions based on a tomographic framework for a downlooking multistatic SAR imaging system. Modern matrix analysis provides several tools to generate performance bounds, which we relate to physical parameters of ...
Jonathan D. Coker, Ahmed H. Tewfik
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