Results 21 to 30 of about 5,182,060 (233)
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
doaj +1 more source
Parameter Estimation of a Ground Moving Target Using Image Sharpness Optimization
Sensors, 2016 Motion parameter estimation of a ground moving target is an important issue in synthetic aperture radar ground moving target indication (SAR-GMTI) which has significant applications for civilian and military.
Jing Yu, Yaan Li
doaj +1 more source
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
Developments in target micro-doppler signatures analysis: radar imaging, ultrasound and through-the-wall radar [PDF]
, 2013 Target motions, other than the main bulk translation of the target, induce Doppler modulations around the main Doppler shift that form what is commonly called a target micro-Doppler signature.
Soraghan, J. J. +5 more
core +5 more sources
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
doaj +1 more source
Ground Moving Target Indication for HRWS-SAR Systems via Symmetric Reconstruction
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2016 Xingzhao Liu, Junfeng Wang, Wentao Lv
exaly +2 more sources
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
doaj +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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source