Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)最新文献

Advanced geostationary radar for hurricane monitoring and studies 用于飓风监测和研究的先进地球同步雷达

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-07-26 DOI: 10.1109/NRC.2004.1316440

E. Im, S. Durden, Y. Rahrnat-Sarnii, H. Fang, V. Cable, M. Lou, J. Huang

引用次数: 12

A novel two frequency MTI radar 一种新型双频MTI雷达

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316494

H. Esfandyarpour, Y. Norouzi, M. Nayebi

引用次数: 2

Imaging moving objects in 3D from single aperture synthetic aperture radar 利用单孔径合成孔径雷达对运动物体进行三维成像

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316402

M. Stuff, M. Biancalana, G. Arnold, J. Garbarino

{"title":"Imaging moving objects in 3D from single aperture synthetic aperture radar","authors":"M. Stuff, M. Biancalana, G. Arnold, J. Garbarino","doi":"10.1109/NRC.2004.1316402","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316402","url":null,"abstract":"General Dynamics Advanced Information Systems (GDAIS), supported by the USA Air Force, has been investigating exploiting moving targets whose returns are captured by conventional SAR systems. The result is a processing system that can extract the detailed 3D motions of a moving object. This system is called Three-Dimensional Motion and Geometric Information (3DMAGI). This paper reports on work done with a full volume of data from the National Ground Intelligence Center (NGIC) and vehicle trajectories measured by an inertial system on a moving vehicle. Its goal is to determine how to best use the rich data available from advanced processing to produce images and image products that will simplify the task of exploiting the radar image. The data and sample trajectory are described as well as how they are used to emulate the result of 3DMAGI processing. The work consists of investigations into the methods of creating a 3D data volume that matches the NGIC chamber collection, starting from a small subset defined by the data surface which lies in the full volume. How much extrapolation is needed to get acceptable results is the first question posed. From there, the question of just what methods yield the best results is examined. Limitations of various methods are explained with examples. Comparisons of each method of extrapolation to the original data volume are presented to give an indication of progress toward the goal.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122192853","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: 45

On-line sensor calibration for airport data fusion 机场数据融合的在线传感器标定

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316418

J. Besada, J. García, A. Soto, M. Gomez

引用次数: 4

Improving knowledge-aided STAP performance using past CPI data [radar signal processing] 利用过去的CPI数据(雷达信号处理)提高知识辅助STAP性能

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316438

D. Page, S. Scarborough, S. Crooks

{"title":"Improving knowledge-aided STAP performance using past CPI data [radar signal processing]","authors":"D. Page, S. Scarborough, S. Crooks","doi":"10.1109/NRC.2004.1316438","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316438","url":null,"abstract":"A technique for incorporating past coherent processing interval (CPI) radar data into knowledge-aided space-time adaptive processing (KASTAP) is described. The technique forms Earth-based clutter reflectivity maps to provide improved knowledge of clutter statistics in nonhomogeneous terrain environments. The maps are utilized to calculate predicted clutter covariance matrices as a function of range. Using a data set provided under the DARPA knowledge-aided sensor signal processing and expert reasoning (KASSPER) program, predicted clutter statistics are compared to measured statistics to verify the accuracy of the approach. Robust STAP weight vectors are calculated using a technique that combines covariance tapering, adaptive estimation of gain and phase corrections, knowledge-aided pre-whitening, and eigenvalue rescaling. Several performance metrics are calculated, including signal-to-interference plus noise (SINR) loss, target detections and false alarms, receiver operating characteristic (ROC) curves, and tracking performance. The results show a significant benefit to using knowledge-aided processing based on multiple CPI clutter reflectivity maps.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124047644","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: 10

Range sidelobes suppression for wideband randomly discontinuous spectra OTH-HF radar signal 宽带随机不连续谱OTH-HF雷达信号的距离旁瓣抑制

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316491

Dongpo Zhang, Xingzhao Liu

引用次数: 4

Doppler frequency extraction of foliage penetration radar based on the Hilbert-Huang transform technology 基于Hilbert-Huang变换技术的叶突雷达多普勒频率提取

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316417

C. Cai, Weixian Liu, J. Fu, Yilong Lu

引用次数: 3

Recovery of badly motion-degraded SAR imagery by the use of frequency-randomized waveforms 利用频率随机波形恢复严重运动退化的SAR图像

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316396

K. Morrison

{"title":"Recovery of badly motion-degraded SAR imagery by the use of frequency-randomized waveforms","authors":"K. Morrison","doi":"10.1109/NRC.2004.1316396","DOIUrl":"https://doi.org/10.1109/NRC.2004.1316396","url":null,"abstract":"The use of SAR imaging is an important tool in the laboratory RCS characterization of signature critical platforms. Despite measures to the contrary, air turbulence and mechanical vibration can produce complex perturbations of the target during the imaging process. Model code was written to provide simulations over a wide range of representative target motions and imaging schemes. The slow swept-frequency data collection schemes of many laboratory radars mean that the target can undergo significant motion during and between pulses, leading to substantial and time-varying defocusing of range profiles. Conventional motion-correction schemes cannot be used as they rely on the presence of clearly defined range profiles which can be tracked over the imaging process. It was found that replacement of a monotonically increasing frequency waveform with one in which the frequency sampling order was repeatedly randomized could produce a significant recovery of the imagery, especially in combination with data averaging. The pattern of the image degradation was found to have a complex dependence on the radar waveform scheme and target motion characteristics.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125744273","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

Performance assessment of along-track interferometry for detecting ground moving targets 探测地面运动目标的沿轨干涉测量性能评价

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316403

C. Chen

引用次数: 78

Orthogonal train of modified Costas pulses 修正Costas脉冲的正交序列

Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509) Pub Date : 2004-04-26 DOI: 10.1109/NRC.2004.1316431

N. Levanon, E. Mozeson

引用次数: 12