发布求助
文献互助 智能选刊 最新文献

2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)最新文献

筛选
英文 中文
A SAR/Infrared Image Fusion Method Based on NSCT and PCNN 基于NSCT和PCNN的SAR/红外图像融合方法
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) Pub Date : 2019-11-01 DOI: 10.1109/APSAR46974.2019.9048470
Wan Luo, Hongbo Zhang, Jing Ding
{"title":"A SAR/Infrared Image Fusion Method Based on NSCT and PCNN","authors":"Wan Luo, Hongbo Zhang, Jing Ding","doi":"10.1109/APSAR46974.2019.9048470","DOIUrl":"https://doi.org/10.1109/APSAR46974.2019.9048470","url":null,"abstract":"In order to improve the quality of the fusion image between SAR image and infrared image, a novel SAR/infrared image fusion method based on non-subsampled contourlet transform (NSCT) and pulse coupled neural network (PCNN) is proposed. Firstly, this method decomposes the SAR image and infrared image respectively via NSCT. Then PCNN is used as the fusion rule of our method. Finally, the fusion image is obtained by taking the inverse NSCT transform. The results indicate that, compared with other fusion methods, higher resolution fusion image with rich information and strong contrast can be get by the method proposed in this paper.","PeriodicalId":377019,"journal":{"name":"2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123473291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Sparse Array Distributed Radar Imaging Based on TSVD for Moving Target 基于TSVD的运动目标稀疏阵列分布式雷达成像
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) Pub Date : 2019-11-01 DOI: 10.1109/APSAR46974.2019.9048423
Fanyun Xu, Yulin Huang, Yin Zhang, Yongchao Zhang, Junjie Wu, Jianyu Yang
{"title":"Sparse Array Distributed Radar Imaging Based on TSVD for Moving Target","authors":"Fanyun Xu, Yulin Huang, Yin Zhang, Yongchao Zhang, Junjie Wu, Jianyu Yang","doi":"10.1109/APSAR46974.2019.9048423","DOIUrl":"https://doi.org/10.1109/APSAR46974.2019.9048423","url":null,"abstract":"Radar high resolution imaging becomes a research hotspot in recent years. Synthetic Aperture Radar (SAR) uses motion of single platform to obtain large aperture. However, it can only obtain a limited resolution at a specific perspective. Distributed radar, which utilize platforms to expand in space and form a larger aperture. It records echo from multiple signal channels which can achieve high resolution in all directions. The existing distributed radar system mainly realizes the imaging of static target with lots of platforms. In this paper, we studied moving target imaging of distributed radar in sparse array condition. In this system, all the array elements can work flexibly as transmitter or receiver. Some methods of spectrum estimation are used to solve distributed radar imaging model. But they are all applied to static target and it is difficult to estimate the number of scattered points accurately, especially for moving target. We established the signal model of moving target in a period of observation time and solved it by using truncated singular value decomposition (TSVD) method. Simulation results verified the feasibility of the imaging model and excellent performance of proposed method.","PeriodicalId":377019,"journal":{"name":"2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122005374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Ultra-Wideband Wide-Angle Scan Array Antenna For Synthetic Aperture Radar 用于合成孔径雷达的超宽带广角扫描阵列天线
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) Pub Date : 2019-11-01 DOI: 10.1109/APSAR46974.2019.9048512
Jia Fang, M. Jin, Xiaolin Zhang
{"title":"An Ultra-Wideband Wide-Angle Scan Array Antenna For Synthetic Aperture Radar","authors":"Jia Fang, M. Jin, Xiaolin Zhang","doi":"10.1109/APSAR46974.2019.9048512","DOIUrl":"https://doi.org/10.1109/APSAR46974.2019.9048512","url":null,"abstract":"Accord to the synthetic aperture radar and electronic warfare requirements, an ultra-wideband(UWB) wide-angle scan dual-polarization array antenna is designed and manufactured. The antenna is vivaldi antenna, the work frequency is 6-18GHz, the scan angle is ±45° in two dimensional direction, and the array size is $16times 16times 2$. The structure of the antenna and simulation method is introduced in detail. After be optimized, the active-VSWRs of the antenna at 3:1 bandwidth with ±45°scan angle are blew 3. The VSWR and lobe diagrams of the array is measured, and results shows the array antenna could match the system work needs.","PeriodicalId":377019,"journal":{"name":"2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122027798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-Resolution InSAR/GMTI Experimental Radar System 高分辨率InSAR/GMTI实验雷达系统
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) Pub Date : 2019-11-01 DOI: 10.1109/APSAR46974.2019.9048490
Xuecheng Hu, Dongyuan He, Guangfeng Qiu, Ge Xu
{"title":"High-Resolution InSAR/GMTI Experimental Radar System","authors":"Xuecheng Hu, Dongyuan He, Guangfeng Qiu, Ge Xu","doi":"10.1109/APSAR46974.2019.9048490","DOIUrl":"https://doi.org/10.1109/APSAR46974.2019.9048490","url":null,"abstract":"NRIET-developed high-resolution InSAR/GMTI airborne radar system featuring high-resolution SAR imaging, InSAR and GMTI is introduced. The design of radar system specifications is described, and the airborne flight tests are also presented.","PeriodicalId":377019,"journal":{"name":"2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129689507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Accelerate FFBP Algorithm of Bistatic Forward-Looking SAR Based On Azimuth Equidistant Coordinates 基于方位角等距坐标的双基地前视SAR加速FFBP算法
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) Pub Date : 2019-11-01 DOI: 10.1109/APSAR46974.2019.9048537
Yue Wang, Junjie Wu, Shaoqing Zhang, Yanwei Wang
{"title":"An Accelerate FFBP Algorithm of Bistatic Forward-Looking SAR Based On Azimuth Equidistant Coordinates","authors":"Yue Wang, Junjie Wu, Shaoqing Zhang, Yanwei Wang","doi":"10.1109/APSAR46974.2019.9048537","DOIUrl":"https://doi.org/10.1109/APSAR46974.2019.9048537","url":null,"abstract":"FFBP (fast factorized back projection) algorithm is a time-domain algorithm of SAR imaging. Subimages of FFBP are built in local elliptic polar coordinates. In this paper, we introduces an accelerate FFBP algorithm. Subimages of this algorithm are based on azimuth equidistant coordinates. The operation time of this method is shorter than that of FFBP.","PeriodicalId":377019,"journal":{"name":"2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128337752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of An Absorber with Multilayer Resistive FSS and Magnetic Absorbing Material 多层阻性FSS和磁性吸波材料吸收体的设计
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) Pub Date : 2019-11-01 DOI: 10.1109/APSAR46974.2019.9048501
Danchen Zhou, Jing Shen, Xuequan Yan
{"title":"Design of An Absorber with Multilayer Resistive FSS and Magnetic Absorbing Material","authors":"Danchen Zhou, Jing Shen, Xuequan Yan","doi":"10.1109/APSAR46974.2019.9048501","DOIUrl":"https://doi.org/10.1109/APSAR46974.2019.9048501","url":null,"abstract":"For a given frequency response, there exists a lower theoretical limit to the total thickness of a nonmagnetic multilayer absorber. In order to break through the limit, an absorber with multilayer resistive FSS and magnetic absorbing material is proposed. Simulated results show a 19.7% reduction in the total thickness in comparison with the lower theoretical limit of a nonmagnetic absorber by adding a piece of magnetic absorbing material. Then an experimental absorber is fabricated and measured. The measured results show that the magnetic absorbing material makes an improvement on the reflection performance of 7dB at most. Besides, simulations are carried out to analyze the probable causes of the disagreement between the simulated results and the measured results.","PeriodicalId":377019,"journal":{"name":"2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128361434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Intra-pulse Doppler effect and experimental result on nonlinear frequency modulation airborne SAR 非线性调频机载SAR的脉冲内多普勒效应及实验结果
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) Pub Date : 2019-11-01 DOI: 10.1109/apsar46974.2019.9048341
Wei Wang, Robert Wang, Y. Deng, Weidong Yu, Zhimin Zhang, Pei Wang
{"title":"Intra-pulse Doppler effect and experimental result on nonlinear frequency modulation airborne SAR","authors":"Wei Wang, Robert Wang, Y. Deng, Weidong Yu, Zhimin Zhang, Pei Wang","doi":"10.1109/apsar46974.2019.9048341","DOIUrl":"https://doi.org/10.1109/apsar46974.2019.9048341","url":null,"abstract":"Nonlinear frequency modulation (NLFM) waveforms have been investigated in recent years. The main advantages of the waveform include fine resolution, good signal-to-noise ratio, and good interference mitigation. However, for synthetic aperture radar (SAR), there are hitherto no real applications of NLFM. It is known that Doppler intolerance is the drawback of NLFM waveform. Therefore, in this paper, the two-dimensional NLFM SAR signal model with Doppler shift is formulated and the influences of Doppler shift on airborne SAR imaging are analysed in detail. Furthermore, the first experimental result of airborne NLFM SAR is demonstrated.","PeriodicalId":377019,"journal":{"name":"2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128174881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Game Model in Multi-Target Imaging Task Allocation 多目标成像任务分配中的博弈模型
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) Pub Date : 2019-11-01 DOI: 10.1109/apsar46974.2019.9048276
Xiao-wen Liu, Qun Zhang, Bi‐shuai Liang, Jia Liang, Hui-Wei Zhang
{"title":"Game Model in Multi-Target Imaging Task Allocation","authors":"Xiao-wen Liu, Qun Zhang, Bi‐shuai Liang, Jia Liang, Hui-Wei Zhang","doi":"10.1109/apsar46974.2019.9048276","DOIUrl":"https://doi.org/10.1109/apsar46974.2019.9048276","url":null,"abstract":"For multi-target imaging task, the time to image all of the targets is very limited, and it would be best to use less time to complete each imaging task. Although the radar network which is constituted by multiple independent and distributed radars can increase efficiency and shorten the observation time for multi-target imaging by the division of labor and cooperation, it is necessary for the radar network to design a multi-target imaging task allocation strategy to optimize the observation time of each radar and improve the time resource utilization. However, there is few study focusing on the imaging task allocation problem. Task allocation problem about multi-target inverse synthetic aperture radar (ISAR) imaging in radar network is a distributed decision problem, thus the game theory could be taken into account to solve the task allocation problem. In this paper, the system model about multi-target imaging and the imaging task allocation problem are given firstly. Moreover, a time optimization game model for multi-target imaging task allocation problem is proposed, and the game model is proven to be a potential game model which has at least one pure-strategy Nash equilibrium (NE). Finally, the best-response dynamics is applied to achieve the solution of the imaging task allocation problem, and the convergence of the time optimization is given to verify that the multi-target imaging task allocation problem can be constructed as a potential game model.","PeriodicalId":377019,"journal":{"name":"2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129318674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Vibration Error Compensation Imaging Algorithm for Arc Array SAR Besed on Parameter Estimation 基于参数估计的圆弧阵SAR振动误差补偿成像算法
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) Pub Date : 2019-11-01 DOI: 10.1109/APSAR46974.2019.9048550
Yifan Dong, Congfei Wu, W. Xu, Pingping Huang, W. Tan, W. Hong
{"title":"Vibration Error Compensation Imaging Algorithm for Arc Array SAR Besed on Parameter Estimation","authors":"Yifan Dong, Congfei Wu, W. Xu, Pingping Huang, W. Tan, W. Hong","doi":"10.1109/APSAR46974.2019.9048550","DOIUrl":"https://doi.org/10.1109/APSAR46974.2019.9048550","url":null,"abstract":"Arc array synthetic aperture radar (SAR) is a novel array imaging system for wide-area observation, with wide observation range and high resolution. Arc array synthetic aperture radar uses W-band as carrier signal, and W-band wavelength is short. The small high-frequency vibration of the helicopter-borne platform will cause significant changes in the phase of the echo signal, which will seriously deteriorate the imaging performance of arc array synthetic aperture radar. Based on the high order approximate imaging algorithm of arc array radar, this paper proposes a vibration phase error compensation imaging algorithm based on Short-time Fourier transform (STFT) parameter estimation. The algorithm uses the high-order approximation imaging algorithm of curved array radar to perform high-order approximation of the slant range model, compensates the range cell migration (RCM) and range azimuth coupling in the two-dimensional frequency domain, and finally realizes the vibration error compensation in the range Doppler domain. The simulation results of the lattice target verify the effectiveness of the imaging method.","PeriodicalId":377019,"journal":{"name":"2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129366742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Large Bistatic Angle ISAR Imaging via Compressed Sensing 基于压缩感知的大双基地角ISAR成像
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR) Pub Date : 2019-11-01 DOI: 10.1109/APSAR46974.2019.9048342
Luhong Fan, Z. Cao, Jin Li, Z. Cui, Rui Min
{"title":"Large Bistatic Angle ISAR Imaging via Compressed Sensing","authors":"Luhong Fan, Z. Cao, Jin Li, Z. Cui, Rui Min","doi":"10.1109/APSAR46974.2019.9048342","DOIUrl":"https://doi.org/10.1109/APSAR46974.2019.9048342","url":null,"abstract":"Aiming to improve image resolution of bistatic Inverse Synthetic Aperture Radar (Bi-ISAR) when the bistatic angle increases, a novel imaging method of high resolution Bi-ISAR based on compressed sensing (CS) theory is proposed. High resolution Bi-ISAR imaging is achieved by constructing a fine and complete orthogonal Fourier basis, which can perfectly extract Doppler frequency of a Bi-ISAR signal and does not directly relate with bistatic angle change. An optimization reconstruction algorithm, gradient projection (GP), is used to reconstruct the higher resolution images of Bi-ISAR at large bistatic angle. Simulated Bi-ISAR data are used to generate Bi-ISAR images of aircraft target. Imaging results show that the proposed CS approach is much effective in Bi-ISAR imaging.","PeriodicalId":377019,"journal":{"name":"2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127068970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信