Results 21 to 30 of about 5,461,852 (244)
An Efficient Imaging Method for Medium-Earth-Orbit Multichannel SAR-GMTI Systems
Remote Sensing, 2022 Medium-Earth-orbit (MEO) synthetic aperture radar (SAR) has the advantages of short revisit time and wide coverage, and thus is a potential tool for implementing ground moving target indication (GMTI) tasks.
Yongkang Li, Tianyu Huo, Cuiqian Cao
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SAR Traffic Monitoring Using Time-Frequency Analysis for Detection and Parameter Estimation [PDF]
, 2008 In recent years many powerful techniques and algorithms for joint time-frequency analysis have been developed and successfully applied to ISAR imaging and SAR ground moving target indication (GMTI).
Stefan V. Baumgartner +3 more
core +1 more source
A Study on the Range Equation Modeling for Multichannel Medium-Earth-Orbit SAR-GMTI Systems
Remote Sensing, 2021 This paper studies the range equation modeling of a ground moving target for multichannel medium-Earth-orbit (MEO) synthetic aperture radar (SAR) ground moving target indication (GMTI), an issue which is challenging to tackle due to the non-linear motion
Yongkang Li +3 more
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Moving target modelling and indication in MIMO GEO SAR
The Journal of Engineering, 2019 Multiple-input multiple-output geosynchronous synthetic aperture radar (MIMO GEO SAR), composed by several mini-satellites in GEO orbits, has more spatial degrees of freedom, which helps to suppress clutter and improves the performance of ground moving ...
Chang Cui +4 more
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A New Method to Create a Virtual Third Antenna from a Two-Channel SAR-GMTI System [PDF]
, 2007 Two-channel SAR-GMTI systems are suboptimal for moving target motion parameter estimation. Indeed, the ATI phase estimate of the across-track velocity component for a moving target is biased to lower values depending on the target signal to clutter ...
Ishuwa Sikaneta +3 more
core +1 more source
Knowledge-Aided STAP Processing for Ground Moving Target Indication Radar Using Multilook Data
EURASIP Journal on Advances in Signal Processing, 2006 Knowledge-aided space-time adaptive processing (KASTAP) using multiple coherent processing interval (CPI) radar data is described. The approach is based on forming earth-based clutter reflectivity maps to provide improved knowledge of clutter statistics
Page Douglas, Owirka Gregory
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IEEE Access, 2019 The indication of moving targets with low velocities, which is an extremely serious problem for traditional ground moving targets indication (GMTI), can be achieved relatively easily by shadow detection in VideoSAR imagery.
Zhongkang Liu +2 more
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Deceptive jamming against multi-channel SAR-GMTI
The Journal of Engineering, 2019 Aimed at the problem that the deceptive jamming against synthetic aperture radar ground moving target indication generated by single jammer cannot work effectively in multi-channel SAR, a novel deceptive jamming against multi-channel SAR-GMTI based on ...
Jingke Zhang +3 more
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Remote Sensing, 2020 Across-track acceleration is a major source of estimation error of along-track velocity in synthetic-aperture radar (SAR) ground moving-target indication (GMTI).
Sang-Wan Kim, Joong-Sun Won
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Extended GLRT Detection of Moving Targets for Multichannel SAR Based on Generalized Steering Vector
Sensors, 2021 A generalized likelihood ratio test (GLRT) with the constant false alarm rate (CFAR) property was recently developed for adaptive detection of moving targets in focusing synthetic aperture radar (SAR) images.
Chong Song +3 more
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