2018 IEEE Radar Conference (RadarConf18)最新文献_第3页

Forward-looking super-resolution radar imaging via reweighted L1-minimization 前视超分辨率雷达成像通过重新加权l1最小化

2018 IEEE Radar Conference (RadarConf18) Pub Date : 2018-04-23 DOI: 10.1109/RADAR.2018.8378601

Hyukjung Lee, J. Chun, Sungchan Song

引用次数: 2

Simulation of the radar cross-section of dynamic human motions using virtual reality data and ray tracing 利用虚拟现实数据和光线追踪技术模拟人体动态运动的雷达横截面

2018 IEEE Radar Conference (RadarConf18) Pub Date : 2018-04-23 DOI: 10.1109/RADAR.2018.8378798

A. Singh, S. S. Ram, S. Vishwakarma

引用次数: 11

Target recognition with adaptive waveforms in cognitive radar using practical target RCS responses 基于实际目标RCS响应的认知雷达自适应波形目标识别

2018 IEEE Radar Conference (RadarConf18) Pub Date : 2018-04-23 DOI: 10.1109/RADAR.2018.8378628

Q. Tan, R. Romero, D. Jenn

{"title":"Target recognition with adaptive waveforms in cognitive radar using practical target RCS responses","authors":"Q. Tan, R. Romero, D. Jenn","doi":"10.1109/RADAR.2018.8378628","DOIUrl":"https://doi.org/10.1109/RADAR.2018.8378628","url":null,"abstract":"In this paper, we utilize high-fidelity electromagnetic-simulated RCS responses in a cognitive radar (CRr) platform performing target recognition. Previous works used arbitrarily generated target responses consisting of a few frequency resonances which are distinct across different targets. However, realistic target responses contain rich frequency components characterized by physical scattering centers of the target. It is therefore imperative to build on prior works by considering practical target responses. We utilize an improved waveform design technique known as probability-weighted energy (PWE) over classical spectral variance methods such as probability-weighted spectral variance (PWSV). Our results showed an improvement in classification performance of SNR and mutual information (MI)-based waveforms used in conjunction with PWE and PWSV update methods over receiver-adaptive wideband pulsed waveform using a CRr platform. In this work, we also consider a more complex case where the target's azimuth angle has some deviation such that the response from that target is not deterministic but rather from an ensemble of different responses as dictated by aspect angle uncertainty.","PeriodicalId":379567,"journal":{"name":"2018 IEEE Radar Conference (RadarConf18)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134274050","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: 16

Design of a low-profile ultra-wideband antenna array based on planar dipole elements 基于平面偶极子单元的低轮廓超宽带天线阵列设计

2018 IEEE Radar Conference (RadarConf18) Pub Date : 2018-04-23 DOI: 10.1109/RADAR.2018.8378543

Bin Li, Jin-ping Zhang, Ye Deng, Zhipeng Zhou

{"title":"Design of a low-profile ultra-wideband antenna array based on planar dipole elements","authors":"Bin Li, Jin-ping Zhang, Ye Deng, Zhipeng Zhou","doi":"10.1109/RADAR.2018.8378543","DOIUrl":"https://doi.org/10.1109/RADAR.2018.8378543","url":null,"abstract":"A low-profile ultra-wideband antenna array for the phased array applications has been proposed in this article. In order to meet both the low-profile and ultra-wideband requirements, the antenna array is composed of planar dipole elements fed by a microstrip-coupled structure. The feeding method is optimized by using a vertical transition. The thickness of the antenna array is approximately 20 mm, which is less than one-tenth of the wavelength at the lower frequency. Simulated results indicate that the operating frequency range with VSWR < 2.0 (in the normal direction) is from 1.3 GHz to 3.3 GHz (87.0% relative bandwidth). The operating frequency range has satisfied specific requirements of the specific project. It can be further expanded if required. The active VSWR versus the different scan angles are then calculated. The obtained results show that the active VSWR is less than 2.0 and 3.0 in the band 1.3 ∼ 3.3 GHz while the range of scan angle is ±30° and ±45°, respectively. An 8×8 array is fabricated for the performance verification and the radiation patterns are measured in an anechoic chamber. Measured results confirm that this antenna array can be used properly in the phased array for compact applications.","PeriodicalId":379567,"journal":{"name":"2018 IEEE Radar Conference (RadarConf18)","volume":"157 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113985948","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: 7

A study on the performance of a complementary auxiliary antenna pattern for maisel sidelobe blanker 麦塞尔副瓣消光器中互补辅助天线方向图的性能研究

2018 IEEE Radar Conference (RadarConf18) Pub Date : 2018-04-23 DOI: 10.1109/RADAR.2018.8378729

Dogancan Dinler, Ç. Candan, S. Koc

引用次数: 0

ViSAR: A 235 GHz radar for airborne applications ViSAR: 235 GHz机载雷达

2018 IEEE Radar Conference (RadarConf18) Pub Date : 2018-04-23 DOI: 10.1109/RADAR.2018.8378797

Seong-Hwoon Kim, Ryan Fan, Fred Dominski

引用次数: 40

Phased array radar cost reduction through the use of commercial RF systems on a chip 通过在芯片上使用商用射频系统来降低相控阵雷达成本

2018 IEEE Radar Conference (RadarConf18) Pub Date : 2018-04-23 DOI: 10.1109/RADAR.2018.8378686

Rory Fagan, F. Robey, L. Miller

{"title":"Phased array radar cost reduction through the use of commercial RF systems on a chip","authors":"Rory Fagan, F. Robey, L. Miller","doi":"10.1109/RADAR.2018.8378686","DOIUrl":"https://doi.org/10.1109/RADAR.2018.8378686","url":null,"abstract":"Phased array radar systems have not yet made the cost and performance breakthrough needed for fielding in the large numbers required to support air traffic control or distributed weather radar. While there has been significant cost reduction in the aperture, the cost of the RF components for beamforming and signal distribution are still prohibitive. Emerging commercial RF Systems on a Chip (RFSoC) have the potential to address these cost challenges while at the same time providing the ability to implement real-time digital signal processing algorithms not possible just a few years ago. Under the DARPA Arrays at Commercial Timescales (ACT) program and through internal funding we demonstrated the use of a prototype RFSoC as a software defined receiver and waveform generator along with real-time adaptive beamforming in an S-band phased array radar. The focus of the research has been to demonstrate the potential improvement for size weight and power (SWaP), real-time signal processing capacity and advanced design processes for rapid algorithm implementation. The pre-production RFSoC prototype demonstrates the potential value of RFSoC and rapid algorithm development for next generation radar systems.","PeriodicalId":379567,"journal":{"name":"2018 IEEE Radar Conference (RadarConf18)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115271866","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: 17

Fast back-projection autofocus for linear array SAR 3-D imaging via maximum sharpness 快速反向投影自动对焦线性阵列SAR三维成像通过最大的清晰度

2018 IEEE Radar Conference (RadarConf18) Pub Date : 2018-04-23 DOI: 10.1109/RADAR.2018.8378614

Shunjun Wei, Liming Zhou, Xiaoling Zhang, Jun Shi

引用次数: 11

Underdetermined DOA estimation with unknown source number in nonuniform noise 非均匀噪声中未知源数的欠定DOA估计

2018 IEEE Radar Conference (RadarConf18) Pub Date : 2018-04-23 DOI: 10.1109/RADAR.2018.8378773

Guojun Jiang, X. Mao, Mianzhi Wang, Yongtan Liu, A. Nehorai

引用次数: 2

A modified matrix CFAR detector based on maximum eigenvalue for target detection in the sea clutter 一种基于最大特征值的改进矩阵CFAR检测器用于海杂波下的目标检测

2018 IEEE Radar Conference (RadarConf18) Pub Date : 2018-04-23 DOI: 10.1109/RADAR.2018.8378679

Wenjing Zhao, Minglu Jin, Wenlong Liu

引用次数: 5