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Processing video-SAR data with the fast backprojection method
IEEE Transactions on Aerospace and Electronic Systems, 2016Video synthetic aperture radar (video-SAR) is a land-imaging mode where a sequence of images is continuously formed when the radar platform either flies by or circles the scene. In this paper, the fast backprojection (FBP) algorithm is introduced for video-SAR image formation.
Xiaoshen Song, Weidong Yu
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Spaceborne Video-SAR moving target surveillance system
2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016Video-SAR combines SAR imaging and video techniques together, enabling continuous surveillance of a specific area, which is a new developing microwave detection technology. Several airborne Video-SAR achievements have been published; however, less attention has been paid to the moving targets in the Video-SAR as well as spaceborne platforms.
Bo Liu 0016 +4 more
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An Efficient PFA Subaperture Algorithm for Video SAR Imaging
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021Video Synthetic Aperture Radar (SAR) has received extensive attention in recent years due to its continuous imaging capabilities. Video SAR requires continuous image reconstruction, and there are many redundant operations in the reconstruction process.
Yue Song 0003 +4 more
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Joint Tracking of Moving Target in Single-Channel Video SAR
IEEE Transactions on Geoscience and Remote Sensing, 2022Video synthetic aperture radar (SAR) has been found very useful in ground moving target indication (GMTI) and tracking. The dynamic shadows in video SAR imagery sequences indicate the real positions of moving targets, which can be utilized in target detection and tracking.
Chao Zhong +2 more
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SAR video generation of MIMO video SAR with beat frequency division FMCW
2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS), 2017In this paper, we present a method for generating synthetic aperture radar (SAR) video from multiple-input multiple-output (MIMO) video synthetic aperture radar (ViSAR) systems, which are suitable for operation in unmanned aerial vehicle (UAV) environments.
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An Efficient Image Formation Algorithm for Spaceborne Video SAR
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018To avoid unnecessary duplication of processing and meet the real-time requirement of video SAR. An image formation algorithm of spaceborne video SAR based on sub-aperture extended chirp scaling processing was proposed in this paper. Firstly the SAR raw data segmentation approach was presented to realize the SAR video frames continuous output.
Jian Liang +6 more
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STCADeNet: Spatial-temporal context awareness for video SAR shadow detection
Expert Systems With ApplicationsShunjun Wei, Tianjiao Zeng, Xiaowo Xu
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An algorithm for persistent imaging of curvilinear video SAR
2018 IEEE Radar Conference (RadarConf18), 2018This paper addresses the persistent imaging problem for a novel synthetic aperture radar (SAR) mode named curvilinear video SAR (CViSAR), involving the division of apertures and reconstruction of frame images. To form frame images with the same resolution, a new algorithm named adaptive aperture division (AAD) is proposed, which is based on the ...
Ruizhi Hu, Rui Min, Feng Zuo, Yiming Pi
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The formation of high-resolution FMCW SAR video
2016 Progress in Electromagnetic Research Symposium (PIERS), 2016In this paper, the formation of high-resolution FMCW SAR video is introduced in detail. With the application of rational design and compact devices, a miniaturized FMCW SAR prototype is successfully realized. Based on this high-performance FMCW SAR system, the continuous real-time video is achieved after the preprocessing of raw data, the parallel ...
Chengfei Gu +3 more
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Squint Video SAR by Exploiting Frequency Dispersion of Wideband Phased Array
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021The frequency dispersion of wideband phased array will lead to the variation of beam point angle with the frequency of transmit signal. In this letter, such phenomenon will be exploited for squint video SAR. Firstly, the frequency dispersion will make the centroid Doppler frequency independent from the range frequency.
Nan Liu 0008 +3 more
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