2016 IEEE Radar Conference (RadarConf)最新文献_第4页

Analysis for integration time and resolution in geosynchronous SAR 地球同步SAR积分时间和分辨率分析

2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485198

B. Hu, Y. Jiang, Yun Zhang, Xiaohui Zhao, T. Yeo

引用次数: 0

Video-SAR using higher order Taylor terms for differential range 视频sar使用高阶泰勒项差分范围

2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485169

E. Bishop, R. Linnehan, A. Doerry

{"title":"Video-SAR using higher order Taylor terms for differential range","authors":"E. Bishop, R. Linnehan, A. Doerry","doi":"10.1109/RADAR.2016.7485169","DOIUrl":"https://doi.org/10.1109/RADAR.2016.7485169","url":null,"abstract":"The backprojection algorithm has several advantages over Doppler based synthetic aperture radar (SAR) image formation. These advantages have made it a standard choice for video-SAR, where measurements from airborne radars are continuously received and processed into imagery. Backprojection provides higher fidelity throughout the entire image, has greater flexibility of the image and flight path orientations, and is inherently immune to geometric distortions due to plane wave assumptions. Furthermore, the parallel nature of backprojection makes it ideally suited for implementation on general purpose graphical processing units (GPUs). However, GPUs are often designed for optimum single-precision performance and relatively slow double-precision performance. Backprojection relies on computing the differential range (ΔR) from every array position to every pixel, typically requiring a large number of double-precision operations. It has been suggested to exploit the first-order Taylor coefficients of ΔR, i.e., the far-field linear approximation, carried out using single-precision operations at the expense of significant image quality degradation. In this work we show that the single-precision, second-order Taylor approximation of ΔR yields a significant performance advantage over the double-precision square roots, while maintaining superior image quality. Geometric precision errors are estimated using third-order coefficients and verified numerically using simulations. SAR images are qualitatively compared using data collected by General Atomics Aeronautical Systems, Inc. (GA-ASI).","PeriodicalId":185932,"journal":{"name":"2016 IEEE Radar Conference (RadarConf)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127055003","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: 15

Use of range-rate measurements in automatic track formation 在自动航迹形成中使用距离速率测量

2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485220

Benjamin Davis, W. Dale Blair

{"title":"Use of range-rate measurements in automatic track formation","authors":"Benjamin Davis, W. Dale Blair","doi":"10.1109/RADAR.2016.7485220","DOIUrl":"https://doi.org/10.1109/RADAR.2016.7485220","url":null,"abstract":"In this paper, the authors investigate the use of range rate measurements via Doppler processing to decrease the probability of false track initiation, and the constraints that the use of these techniques may impose on the radar design. Both constant-velocity and accelerating targets are considered. First, the general track initialization and gating problem is formulated and the classical approach to range-bearing track initiation is described. An analysis of the problem of resolving Doppler ambiguity in the presence of errors is then presented followed by a Maximum Likelihood estimation approach to track initialization using range and range-rate measurements for maneuvering and non-maneuvering targets. These algorithms were applied to a notional radar system with variable target RCS, desired probability of false alarm, and track frame time (time between measurements). The results of these simulations show the proposed gating algorithms to be more robust than standard range-angle gating in terms of false track rate. The ability of the radar to initiate track on an accelerating target is preserved by using a maneuvering target gating model at the cost of a slight increase in false track rate.","PeriodicalId":185932,"journal":{"name":"2016 IEEE Radar Conference (RadarConf)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122355173","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 digital radar design using chaotic AM signals 基于混沌调幅信号的高分辨率数字雷达设计

2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485167

B. Verdin, P. Debroux, B. Flores, C. Pappu

引用次数: 2

Passive multistatic SAR with GNSS transmitters and using joint bi/multi-static CLEAN technique 采用GNSS发射机和联合bi/multi-static CLEAN技术的无源多静态SAR

2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485109

F. Santi, M. Bucciarelli, D. Pastina, M. Antoniou, Mike Cherniakov

引用次数: 3

Power allocation game between a radar network and multiple jammers 雷达网络和多个干扰机之间的功率分配博弈

2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485077

Anastasios Deligiannis, Gaia Rossetti, Anastasia Panoui, S. Lambotharan, Jonathon A. Chambers

引用次数: 35

Enhancing spectrum coexistence using radar waveform diversity 利用雷达波形分集增强频谱共存

2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485209

M. Govoni

引用次数: 18

Performance bounds on cooperative radar and communication systems operation 协同雷达和通信系统运行的性能界限

2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485101

C. Richmond, Prabahan Basu, R. Learned, J. Vian, A.R. Worthen, M. Lockard

引用次数: 22

Parametric dictionary learning for TWRI using distributed particle swarm optimization 基于分布式粒子群优化的TWRI参数字典学习

2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485245

Haroon Raja, W. Bajwa, F. Ahmad, M. Amin

引用次数: 7

Optimal waveform design oriented toward cognitive radar in fractional Fourier domain 面向分数阶傅里叶域认知雷达的最佳波形设计

2016 IEEE Radar Conference (RadarConf) Pub Date : 2016-05-02 DOI: 10.1109/RADAR.2016.7485257

Xiaowen Zhang, Kaizhi Wang, Yesheng Gao, Xingzhao Liu

引用次数: 3