发布求助
文献互助 智能选刊 最新文献

IEEE International Conference on Radar最新文献

筛选
英文 中文
A study of cost-effectiveness of low altitude coverage over ground by air surveillance radars 空中监视雷达对地面低空覆盖的成本效益研究
IEEE International Conference on Radar Pub Date : 1990-05-07 DOI: 10.1109/RADAR.1990.201198
Li Neng-jing
{"title":"A study of cost-effectiveness of low altitude coverage over ground by air surveillance radars","authors":"Li Neng-jing","doi":"10.1109/RADAR.1990.201198","DOIUrl":"https://doi.org/10.1109/RADAR.1990.201198","url":null,"abstract":"Three schemes of low-altitude coverage over ground by air surveillance radars are discussed. They are the ground radar netting, the balloon lifted radars, and the AEW (airborne early warning) system. The cost-effectiveness of each scheme is analyzed and compared with others. The results show that for peacetime use the balloon radar is the best and AEW the worst, but in wartime the conclusion is reversed.<<ETX>>","PeriodicalId":441674,"journal":{"name":"IEEE International Conference on Radar","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124028972","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
Minimum peak sidelobe pulse compression codes 最小峰值旁瓣脉冲压缩码
IEEE International Conference on Radar Pub Date : 1990-05-07 DOI: 10.1109/RADAR.1990.201102
M. Cohen, M. R. Fox, J. M. Baden
{"title":"Minimum peak sidelobe pulse compression codes","authors":"M. Cohen, M. R. Fox, J. M. Baden","doi":"10.1109/RADAR.1990.201102","DOIUrl":"https://doi.org/10.1109/RADAR.1990.201102","url":null,"abstract":"The length 40 to 48 minimum peak sidelobe (MPS) codes have been discovered and enumerated. This discovery was made possible by utilizing innovative, recursive algorithms that make it unnecessary to search large numbers of the 2/sup N/ code possibilities while retaining the efficacy of an exhaustive search. It is noted that there are no length 49 or 50 biphase codes with peak sidelobes of three or less. The discovered MPS codes are analyzed for: (1) various properties such as Doppler tolerance and integrated sidelobe levels relating to pulse compression performance, and (2) various properties that might provide clues for finding longer, well-behaved codes. It is shown that one can obtain about +or-10/sup degrees / per pulse of improved Doppler tolerance by a judicious choice of code.<<ETX>>","PeriodicalId":441674,"journal":{"name":"IEEE International Conference on Radar","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121770678","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: 93
Broad-band DOA estimation and beamforming in multipath environment 多径环境下宽带DOA估计与波束形成
IEEE International Conference on Radar Pub Date : 1990-05-07 DOI: 10.1109/RADAR.1990.201086
K. C. Indukumar, V. Reddy
{"title":"Broad-band DOA estimation and beamforming in multipath environment","authors":"K. C. Indukumar, V. Reddy","doi":"10.1109/RADAR.1990.201086","DOIUrl":"https://doi.org/10.1109/RADAR.1990.201086","url":null,"abstract":"It is shown that the effective dimension of the signal subspace collapses in the presence of multipath and may be recovered with subarray averaging. The F-norm (Frobenius norm) of the cross-correlation matrix is proposed as a measure of the correlation between the impinging signals, and an upper bound on this norm, which depicts all the essential features of the true F-norm, is derived. Using this bound, how the correlation between the direct and multipath signals falls with progressive smoothing and how the rate is which it falls depends on the spacing and directions of the sources are studied. Computer simulations are provided to support theoretical predictions. To keep the notation and the analysis simple, the analysis was restricted to two-source models; however, the results extend to signal models with more than two sources.<<ETX>>","PeriodicalId":441674,"journal":{"name":"IEEE International Conference on Radar","volume":"315 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131021930","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
Modeling and performance of HF/OTH radar target classification systems HF/OTH雷达目标分类系统建模与性能研究
IEEE International Conference on Radar Pub Date : 1990-05-07 DOI: 10.1109/RADAR.1990.201093
D. J. Strausberger, N.F. Chamberlain, F. Garber, E. Walton
{"title":"Modeling and performance of HF/OTH radar target classification systems","authors":"D. J. Strausberger, N.F. Chamberlain, F. Garber, E. Walton","doi":"10.1109/RADAR.1990.201093","DOIUrl":"https://doi.org/10.1109/RADAR.1990.201093","url":null,"abstract":"The effects of a class of multipath propagation channels on the performance of a radar target classification system are considered. A Rician frequency-selective fading channel model is used to characterize the effects of the multipath propagation medium and evaluate the performances of radar target classification systems. The performances of classification algorithms that use relative amplitude, relative phase, and absolute amplitude measurements as features are investigated. Performance estimates of the various classification algorithms for interesting sets of channel parameters are obtained by means of Monte Carlo simulations.<<ETX>>","PeriodicalId":441674,"journal":{"name":"IEEE International Conference on Radar","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124586608","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
A novel procedure for detecting and focusing moving objects with SAR based on the Wigner-Ville distribution 基于Wigner-Ville分布的SAR运动目标检测与聚焦新方法
IEEE International Conference on Radar Pub Date : 1990-05-07 DOI: 10.1109/RADAR.1990.201135
S. Barbarossa, A. Farina
{"title":"A novel procedure for detecting and focusing moving objects with SAR based on the Wigner-Ville distribution","authors":"S. Barbarossa, A. Farina","doi":"10.1109/RADAR.1990.201135","DOIUrl":"https://doi.org/10.1109/RADAR.1990.201135","url":null,"abstract":"A novel scheme for detecting moving targets with synthetic aperture radar (SAR) is presented. The proposed approach is based on the use of the Wigner-Ville distribution (WVD) for simultaneously detecting moving targets and estimating their motion kinematic parameters. The estimation plays a key role for focusing the target and correctly locating it with respect to the stationary background. The method has a number of advantages: the detection is efficiently performed on the samples in the time-frequency domain, provided the WVD, without resorting to the use of a bank of filters, each one matched to possible values of the unknown target motion parameters; and the estimation of the target motion parameters can be done on the same time-frequency domain by locating the line where the maximum energy of the WVD is concentrated. A validation of the approach is given by both analytical and simulation means. In addition, the estimation of the target kinematic parameters and the corresponding image focusing are also demonstrated.<<ETX>>","PeriodicalId":441674,"journal":{"name":"IEEE International Conference on Radar","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130017947","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: 54
Experimental study of polarization influence on angles intensity 偏振对角度强度影响的实验研究
IEEE International Conference on Radar Pub Date : 1990-05-07 DOI: 10.1109/RADAR.1990.201193
W. Klembowski
{"title":"Experimental study of polarization influence on angles intensity","authors":"W. Klembowski","doi":"10.1109/RADAR.1990.201193","DOIUrl":"https://doi.org/10.1109/RADAR.1990.201193","url":null,"abstract":"Good weather angels are echoes detected by a radar when in the searched volume of air space no real objects exist. Experimental work is presented to show how the polarization state affects the intensity of good weather angels. Experimental data have been collected from the L-band long-range Polish primary surveillance radars (PSRs) (AVIA C) by registration of plots from the extractor and by taking pictures from the PPI presentation. The best results in decreasing the intensity of angels were obtained when using circular or near-circular polarization. It is concluded from the experimental data that fixed circular polarization can be used in PSRs as the best way to minimize received weather clutter and angels.<<ETX>>","PeriodicalId":441674,"journal":{"name":"IEEE International Conference on Radar","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130578908","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
Feasibility of a synthetic aperture radar with rotating antennas (ROSAR) 旋转天线合成孔径雷达的可行性研究
IEEE International Conference on Radar Pub Date : 1990-05-07 DOI: 10.1109/RADAR.1990.201136
H. Klausing, H. Kaltschmidt
{"title":"Feasibility of a synthetic aperture radar with rotating antennas (ROSAR)","authors":"H. Klausing, H. Kaltschmidt","doi":"10.1109/RADAR.1990.201136","DOIUrl":"https://doi.org/10.1109/RADAR.1990.201136","url":null,"abstract":"ROSAR (rotor-SAR) is a synthetic aperture radar concept for pilot sight target detection and target localization with high resolution. ROSAR is based on illuminating/receiving antennas placed at the tips of helicopter rotor blades. The ROSAR concept has potential benefits for civil and military helicopter-borne imaging applications. The concept has two main potential benefits: the imaging field of view is 360 degrees , and there is no need for a forward velocity of the carrier platform. As opposed to SAR systems based on linear movement of the antenna, ROSAR imaging is based on synthetic apertures of a circular shape. Thus, the image formation process requires a polar format processing architecture.<<ETX>>","PeriodicalId":441674,"journal":{"name":"IEEE International Conference on Radar","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121808882","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: 8
Phased array radar and the detection of 'low observables' 相控阵雷达与“低观测值”探测
IEEE International Conference on Radar Pub Date : 1990-05-07 DOI: 10.1109/RADAR.1990.201094
E. R. Billam
{"title":"Phased array radar and the detection of 'low observables'","authors":"E. R. Billam","doi":"10.1109/RADAR.1990.201094","DOIUrl":"https://doi.org/10.1109/RADAR.1990.201094","url":null,"abstract":"Solid-state active phased array radar is examined in the context of the widely reported developments in the reduction of the radar cross sections of military targets. It is shown that this form of radar makes the optimum use of power and aperture and is an increasingly attractive approach for the detection of small targets. The possibilities for the generation of high powers with solid-state phased arrays are demonstrated, and the potential performance of a solid-state active phased array radar is presented. Such related technical issues as high power sources, efficiency, duty factor, and heat removal, together with the increased levels of clutter associated with high sensitivity radar, are discussed.<<ETX>>","PeriodicalId":441674,"journal":{"name":"IEEE International Conference on Radar","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123545136","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: 18
Radar coverage predictions through time- and range-dependent refractive atmospheres with planetary boundary layer and electromagnetic parabolic equation models 利用行星边界层和电磁抛物方程模型通过随时间和距离变化的折射率大气进行雷达覆盖预测
IEEE International Conference on Radar Pub Date : 1990-05-07 DOI: 10.1109/RADAR.1990.201195
J. P. Skura, C. Schemm, H. W. Ko, L. P. Manzi
{"title":"Radar coverage predictions through time- and range-dependent refractive atmospheres with planetary boundary layer and electromagnetic parabolic equation models","authors":"J. P. Skura, C. Schemm, H. W. Ko, L. P. Manzi","doi":"10.1109/RADAR.1990.201195","DOIUrl":"https://doi.org/10.1109/RADAR.1990.201195","url":null,"abstract":"The enhancement of the capability of electromagnetic parabolic equation (EMPE) and other propagation codes by using predictions from an atmospheric forecast model to provide refractivity data for range-dependent and time-varying situations is demonstrated. Starting from measured temperature and humidity data at one location and time, the JHU/APL planetary boundary layer model is used to obtained predictions for a 24-h forecast period. Predicted fields of temperature, humidity, and refractivity after 12 and 24 h are compared with measured data to verify the forecast, and vertical profiles of refractivity for each hour are provided, along with appropriate radar parameters, as input to EMPE. The EMPE calculations of expected radiation patterns as functions of height and range at selected times demonstrate the effects of hourly changes in the structure of the lower atmosphere on radar propagation. The radar propagation calculations have been repeated using the IREPS code to illustrate the similarities and differences between the two models when applied to this somewhat idealized, horizontally homogeneous situation.<<ETX>>","PeriodicalId":441674,"journal":{"name":"IEEE International Conference on Radar","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128854399","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: 3
On the performance of polarimetric target detection algorithms 偏振目标检测算法的性能研究
IEEE International Conference on Radar Pub Date : 1990-05-07 DOI: 10.1109/RADAR.1990.201114
R. D. Chaney, M. Burl, L. Novak
{"title":"On the performance of polarimetric target detection algorithms","authors":"R. D. Chaney, M. Burl, L. Novak","doi":"10.1109/RADAR.1990.201114","DOIUrl":"https://doi.org/10.1109/RADAR.1990.201114","url":null,"abstract":"The performance of six polarimetric target detection algorithms is analyzed. The detection performance of the optimal polarimetric detector (OPD), the identity-likelihood-ratio-test (ILRT), the polarimetric whitening filter (PWF), the single-polarimetric-channel detector, the span detector, and the power maximization synthesis (PMS) detector is compared. Results for both probabilistic and deterministic targets in the presence of complex-Gaussian clutter are presented. The results of these studies indicate that the PWF and the ILRT typically achieve near optimal performance. Each remaining detection algorithm typically yields performance that is degraded compared to the performance of the OPD, the PWF, and the ILRT.<<ETX>>","PeriodicalId":441674,"journal":{"name":"IEEE International Conference on Radar","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1990-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126579433","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: 18
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
小红书