Results 11 to 20 of about 9,662,076 (112)
A Clutter Suppression Approach for SAR-GMTI Based on Dual-channel DPCA
Leida xuebao, 2014 The Displaced Phase Center Antenna (DPCA) technology, a particular form of Space Time Adaptive Processing (STAP), has been widely used in Synthetic Aperture Radar Ground Moving Target Indication (SAR-GMTI).
Wang Xiao-yang +3 more
doaj +2 more sources
Improved moving target detector using sequential combination of DPCA and ATI
The Journal of Engineering, Volume 2019, Issue 21, Page 7834-7837, November 2019., 2019 The detection of moving targets on synthetic‐aperture radar images is one of the most popular approaches to monitor ground vehicles and ships on an ocean. Although the well‐known displaced phase centre antenna (DPCA) or along track interferometry (ATI) has good detection performance, they often produce high false alarm rates. A new scheme, i.e.
Myung‐Jun Lee +6 more
wiley +2 more sources
Leida xuebao, 2015 One of the unique characteristics of a ground target is its micro-motion, which can be used for target classification and identification. In this study, methods for vibrating ground target detection and feature extraction of the one-stationary bistatic ...
Liang Ying, Zhang Qun, Luo Ying, Wu Yong
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Spaceborne Cloud and Precipitation Radars: Status, Challenges, and Ways Forward. [PDF]
Rev Geophys, 2020 Abstract Spaceborne radars offer a unique three‐dimensional view of the atmospheric components of the Earth's hydrological cycle. Existing and planned spaceborne radar missions provide cloud and precipitation information over the oceans and land difficult to access in remote areas.
Battaglia A +12 more
europepmc +2 more sources
Challenges in radar sea clutter modelling
IET Radar, Sonar &Navigation, Volume 16, Issue 9, Page 1403-1414, September 2022., 2022 Abstract The ability to detect small targets in sea clutter is still an ongoing challenge, even for modern radar systems. Over the past decade, the development of new radar waveforms and signal processing algorithms has been assisted by an increasingly good understanding of the characteristics of sea clutter. Nevertheless, many challenges remain in the
Simon Watts, Luke Rosenberg
wiley +1 more source
Mind the Gap - Part 3: Doppler Velocity Measurements From Space
Frontiers in Remote Sensing, 2022 Convective motions and hydrometeor microphysical properties are highly sought-after parameters for evaluating atmospheric numerical models. With most of Earth’s surface covered by water, space-borne Doppler radars are ideal for acquiring such ...
Pavlos Kollias +7 more
doaj +1 more source
A generalization of DPCA processing for multichannel SAR/GMTI radars
, 2022 S.560-572This paper generalizes the well-known displaced-phase-center antenna (DPCA) method for efficient ground moving target indication (GMTI) with a two-channel synthetic aperture radar (SAR) to any multichannel SAR/GMTI radars independent of the ...
Cerutti-Maori, D., Sikaneta, I.
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A Barrage Noise Jamming Method Based on Double Jammers Against Three Channel SAR GMTI
IEEE Access, 2019 Many jamming methods have been proposed against displaced phase center antenna (DPCA) process, which is a type of three-channel synthetic aperture radar (SAR) ground moving target indication.
Xin Chang, Chunxi Dong
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An Interrupted Sampling Scattered Wave Deception Jamming Method against Three‐Channel SAR GMTI
Mathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020 An important problem is how to generate false moving targets, whose relocated azimuth position is similar to that of real moving targets. To solve this problem, an interrupted sampling scattered wave deception jamming method against three‐channel synthetic aperture radar ground moving target indication (SAR GMTI) is proposed. A stationary jammer uses a
Xin Chang +4 more
wiley +1 more source
International Journal of Antennas and Propagation, Volume 2020, Issue 1, 2020., 2020 Synthetic aperture radar (SAR) was originally exploited to image stationary scenes. However, it is important to derive target information of velocity for many applications. The fractional Fourier transform (FrFT) is a generalization of the classical Fourier transform and is well‐known as a useful tool to estimate the chirp rate of linear frequency ...
Chao Chen +6 more
wiley +1 more source