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GMTI in Circular Sar Data Using STAP
2016 Sensor Signal Processing for Defence (SSPD), 2016This paper presents method and results of a Ground Moving Target Indication (GMTI) experiment using multichannel Synthetic Aperture Radar (M-SAR) data collected by the four channel F-SAR system. The proposed approach is based on sub-aperture processing, Space-Time Adaptive Processing (STAP), constant false alarm rate (CFAR) thresholding and geocoding ...
Casalini, Emiliano +2 more
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A Registration Strategy for Circular SAR Noncoherent Imaging
2020 IEEE Radar Conference (RadarConf20), 2020Circular synthetic aperture radar (CSAR) enables 360-degree observation of the scene. Compared with coherent imaging, noncoherent imaging can suppress speckle and obtain a large number of texture features. However, due to the existence of a man-made anisotropic targets and the unique imaging geometry of CSAR, the different subaperture images are quite ...
Yuxiao Luo +4 more
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FlexSAR multistatic circular SAR collection
2017 IEEE Radar Conference (RadarConf), 2017Bistatic SAR data has advantages and disadvantages compared to monostatic data. This papers examines a combined bistatic and monostatic SAR data collection. The airborne platform used a monostatic radar system with two transmit and two receive channels in a pulsed spotlight mode. Another receive-only system was placed on an elevated mountaintop.
Chad Knight +3 more
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Circular Micro-SAR for mini-UAV
2018 15th European Radar Conference (EuRAD), 2018This paper presents a new multifunction radar that was specially designed for mini-UAV platforms. The multi-channel radar is omnidirectional, allowing great flexibility in radar- and flight operations. A demonstrator has been built, weighing 800 grams, and consuming 25 W. Flexible SAR, GMTI and novel sensing modes can be demonstrated with this system.
Otten, M.P.G. +4 more
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A multiple-subapertures autofocusing algorithm for circular SAR imaging
2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015Due to trajectory complexity of circular synthetic aperture radar (CSAR), it is very difficult to compensate motion errors accurately using conventional frequency-based SAR autofocusing approaches. With point-by-point coherent integration, autofocus back projection (ABP) algorithm is promising for motion error correction in the case of complex ...
Bo-Jun Zhang +2 more
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Interferometric Circular SAR Method for Three-Dimensional Imaging
IEEE Geoscience and Remote Sensing Letters, 2011The aperture of 360° gives circular synthetic aperture radar (SAR) (CSAR) the capability to detect hidden target when its orientation is unknown. Subwavelength resolution can also be achieved when the target in the spotted area is observed under a complete circular aperture.
Yun Lin 0002 +4 more
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High resolution SAR imaging along circular trajectories
2007 IEEE International Geoscience and Remote Sensing Symposium, 2007After a first series of full circle SAR acquisitions in L and P-bands during a 2004 joint FOI-ONERA campaign in Sweden, ONERA experimented in 2006 high resolution (15 cm) polarimetric, full circle acquisitions in France and Germany using its X-band sensor.
Hubert M. J. Cantalloube +2 more
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Reconnaissance with slant plane circular SAR imaging
IEEE Transactions on Image Processing, 1996This paper presents a method for imaging from the slant plane data collected by a synthetic aperture radar (SAR) over the full rotation or a partial segment of a circular flight path. A Fourier analysis for the Green's function of the imaging system is provided. This analysis is the basis of an inversion for slant plane circular SAR data.
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The Effect of Miniaturized Circular Antennas on the SAR Reduction for Wireless Applications
Wireless Personal Communications, 2023International ...
Hamza Ben Hamadi +4 more
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Airborne circular SAR imaging: Results at P-band
2012 IEEE International Geoscience and Remote Sensing Symposium, 2012The first airborne Circular SAR data acquisition experiment of China was carried out in Sichuan by the National Key Laboratory of Science and Technology on Microwave Imaging (MITL), China. Data was acquired using the MITL's P-band, fully polarimetric SAR system along a circular trajectory with the beam spotted on the same area.
Weixian Tan, Yun Lin, Wen Hong
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