发布求助
文献互助 智能选刊 最新文献

2014 11th European Radar Conference最新文献

筛选
英文 中文
Passive multistatic SAR with GNSS transmitters: Preliminary experimental study 带GNSS发射机的被动多基地SAR:初步实验研究
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991224
F. Santi, D. Pastina, M. Bucciarelli, M. Antoniou, D. Tzagkas, Mike Cherniakov
{"title":"Passive multistatic SAR with GNSS transmitters: Preliminary experimental study","authors":"F. Santi, D. Pastina, M. Bucciarelli, M. Antoniou, D. Tzagkas, Mike Cherniakov","doi":"10.1109/EURAD.2014.6991224","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991224","url":null,"abstract":"This paper presents preliminary experimental results on passive multistatic SAR exploiting navigation satellites as transmitters of opportunity and a stationary receiver. The inherent multistatic structure of GNSS constellation is exploited to define a passive multistatic radar imaging system. Experimental results are shown proving the capability and problems of such a system of forming multistatic SAR images exploiting the signals transmitted by multiple, spatially separated GNSS satellites that may considerably increase the amount of the information for a given scene.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114324198","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: 20
DOA estimation based on sparse covariance vector representation using two-channel receiver 基于稀疏协方差矢量表示的双通道接收机DOA估计
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991257
Mohammad Jabbarian-Jahromi, G. Foudazi, K. Mohammadpour‐Aghdam, M. Mohammad-Salehi
{"title":"DOA estimation based on sparse covariance vector representation using two-channel receiver","authors":"Mohammad Jabbarian-Jahromi, G. Foudazi, K. Mohammadpour‐Aghdam, M. Mohammad-Salehi","doi":"10.1109/EURAD.2014.6991257","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991257","url":null,"abstract":"A practical representation of the sparse signal model is proposed for direction finding applications which extends conventional phase-only interferometry to incorporate the covariance matrix of received signal which is reshaped in a vector. The main goal of this work is to implement the sparse recovery algorithm in a practical Direction-Of-Arrival (DOA) system in which only two-channel receiver is available. This system uses the sequential time sampling by switching among array antennas. Two different types of switching have been considered in this work. The simulation results, and also the practical measurements of a real DOA system show that the sparse recovery algorithm has better performance in DOA estimation compared to MUSIC and conventional interferometer methods.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"308 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114415655","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
Amplitude modulation on echoes from large birds 对大型鸟类的回声进行调幅
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991236
Borge Torvik, A. Knapskog, O. Lie-Svendsen, K. E. Olsen, H. Griffiths
{"title":"Amplitude modulation on echoes from large birds","authors":"Borge Torvik, A. Knapskog, O. Lie-Svendsen, K. E. Olsen, H. Griffiths","doi":"10.1109/EURAD.2014.6991236","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991236","url":null,"abstract":"Although periodic amplitude modulation of echoes from birds were observed in the very first recordings of birds with radar, few publications on the topic are found in the literature. The phenomenon, which tends to be correlated with the wing beat frequency (WBF), has been suggested as a feature for discrimination between bird species. Early studies were reported mainly in the 1960s and 1970s, however, several questions remain unanswered. Is such modulation prevalent, if so what causes it, how does it vary with aspect angle and signal to noise ratio (SNR), how sensitive is it choice of carrier frequency, and what is its potential as a feature for classification in a real scenario? This paper seeks to address several of these question. The discussion and results presented are based on analysis of X-band radar data and video of flying gannets. These measurements are supported with electromagnetic predictions of 3D gannet models.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"302 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117054818","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
Broadband cavity-backed antenna arrays on glass substrate for 60 GHz application 60 GHz玻璃基板宽频腔背天线阵列
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991274
Sanaz Mortazavi, Ali Sinai Esfahani, A. Hamidian, A. Malignaggi, H. H. Abdullah, G. Boeck
{"title":"Broadband cavity-backed antenna arrays on glass substrate for 60 GHz application","authors":"Sanaz Mortazavi, Ali Sinai Esfahani, A. Hamidian, A. Malignaggi, H. H. Abdullah, G. Boeck","doi":"10.1109/EURAD.2014.6991274","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991274","url":null,"abstract":"In this paper design concepts for compact broadband printed V-Band 2×1 bowtie, 2×1 and 2×2 dipole array antennas, suitable for millimeter wave (mm-Wave) applications, are presented. The antennas are designed on a planar quartz glass substrate. The center frequencies of the array antennas are set to 60 GHz. Optimization techniques for improving antennas impedance matching and overall gain are also presented. Simulated and measured impedance matching and far field radiation patterns for all three antenna arrays are shown and discussed. An air cavity has been embedded in the quartz glass stack to improve antenna bandwidth and radiation efficiency. Both dipole structures have about 8.5 dBi measured gain, while the bowtie antenna shows 7 dBi. Their bandwidth is about 10 GHz. All three designs achieve over 10 % bandwidth while maintaining better than 90 % efficiency. A prototype of the antennas was successfully manufactured and tested.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115689307","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: 2
From Huelsmeyer's telemobiloskop to the digital radar 从休尔斯迈的远程遥控到数字雷达
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991200
H. Rohling
{"title":"From Huelsmeyer's telemobiloskop to the digital radar","authors":"H. Rohling","doi":"10.1109/EURAD.2014.6991200","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991200","url":null,"abstract":"The year 2014 is for all radar engineers and for the international radar society of much importance due to the first radar patent which has been applied 110 years ago on April 30th, 1904 in Berlin at the “Kaiserliche Patentamt”, the former German patent office. The inventor, Christian Huelsmeyer, was interested in collision avoidance systems for ship traffic which was an important economical factor at that time. The TITANIC disaster could have been avoided if the Telemobiliscop technique had been applied to this ship. Starting the development with analogue technique and continuing with digital and semiconductor technology changed the radar system design and the resulting performance totally. The challenge today is to design radars on a single chip.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123938582","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
Reflectivity modeling of eucalypt ash particles with respects to moisture absorption over microwave and millimeter wave 桉树灰颗粒在微波和毫米波上的吸湿性反射率模拟
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991244
T. Baum, L. Thompson, K. Ghorbani
{"title":"Reflectivity modeling of eucalypt ash particles with respects to moisture absorption over microwave and millimeter wave","authors":"T. Baum, L. Thompson, K. Ghorbani","doi":"10.1109/EURAD.2014.6991244","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991244","url":null,"abstract":"This paper investigates modeled reflectivity of eucalypt ash particles based on empirically measured geometric, dynamic and complex permittivity models. The eucalypt species is the most common tree genus throughout Australasia. The investigation of ash created from its foliage during bushfires is required to better understand how these particles play a role in the overall reflectivity of smoke plumes. Large smoke plumes are commonly observable on many meteorological radars. Unlike liquid precipitation which displays more homogenous like properties as effective bulk material, ash is significantly more complex. On the particle level the complex permittivity varies over the entire structure, the geometric properties are vastly complex and the internal porosity varies based on the originating cell structures. Taking these complexities in to consideration, modeled reflectivity based on statistically correct particles has been carried out in a full electromagnetic solver driven by an external software framework. The results have been analyzed and discussed.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131698302","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
A German radar chain, facing the British Chain Home during WW II 二战期间，德国雷达链正对着英国雷达链
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991199
Y. Blanchard, P. van Genderen
{"title":"A German radar chain, facing the British Chain Home during WW II","authors":"Y. Blanchard, P. van Genderen","doi":"10.1109/EURAD.2014.6991199","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991199","url":null,"abstract":"The <;<; Atlantic Wall >>, built by the German forces along the occupied coasts of Western Europa as a rampart to protect them against Allied landing attempts, included a powerful chain of anti-naval and anti-air detection devices, which may be seen as a kind of counterpart to the British Chain Home. But its structure was quite different, and probably was most efficient at the time it was built. Today, 70 years later, remains of this continental chain can still be seen in many places, especially in France. Their <;<; archaeological >> study may enlighten the war time archives and documents from both sides, to explain how it was built, how it worked, and evaluate its supposed efficiency. The paper describes also the progressive discovery of this chain by the allies, which lead them to conceive a lot of counter-measures, which made it quite inefficient during the crucial days of June 44 in Normandy.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130979756","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: 2
The monostatic-bistatic equivalence theorem and bistatic radar clutter 单-双基地等价定理与双基地雷达杂波
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991218
J. Johnson, C. Baker, G. Smith, K. Bell, M. Rangaswamy
{"title":"The monostatic-bistatic equivalence theorem and bistatic radar clutter","authors":"J. Johnson, C. Baker, G. Smith, K. Bell, M. Rangaswamy","doi":"10.1109/EURAD.2014.6991218","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991218","url":null,"abstract":"The applicability of the monostatic-bistatic equivalence theorem (MBET) for predicting the bistatic normalized radar cross section (NRCS) of a terrain surface given knowledge of its monostatic NRCS is examined. The first order small perturbation method (SPM) of rough surface scattering is used as an example theory for characterizing terrain backscatter. An appropriate MBET is developed for the SPM, but is found to be insufficient to predict bistatic NRCS properties in specific polarizations. However, the method is shown to be successful in describing the “total” NRCS (a combination of the NRCS in four polarization combinations.) Implications of these results for modeling bistatic clutter and possible methods for deriving a polarization specific MBET are also discussed.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133680037","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: 9
Digital frequency discriminator(DFD) error improvement by LO leakage compensation 利用本相漏损补偿改善数字鉴频器误差
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991336
Won Choi, Won-Sang Jo, D. Park, K. Koo
{"title":"Digital frequency discriminator(DFD) error improvement by LO leakage compensation","authors":"Won Choi, Won-Sang Jo, D. Park, K. Koo","doi":"10.1109/EURAD.2014.6991336","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991336","url":null,"abstract":"This paper has presented the design of some phase correlators for two digital frequency discriminators (DFDs) of which operation is over the 2.0 to 6.0 GHz, or 6.0 to 18.0 GHz frequency range in electronic warfare system. The accuracy of frequency discrimination according to the isolation of correlator mixer are analyzed, and it is shown that LO-RF isolation has much effect on frequency discrimination error by deriving some analytic equations relating the LO-RF isolation and phase performance. We propose a novel method of phase sector compensation in order to improve frequency discriminating error. The phase error of the designed phase correlator is RMS 4.57° and the frequency accuracy is 0.95 MHz over the 2.0-6.0 GHz. Over the 6.0-18.0 GHz range, the phase error is 4.81°, RMS and discrimination accuracy is 1.49 MHz, RMS.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122244161","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
Radar micro-Doppler of wind-turbines: Simulation and analysis using slowly rotating linear wired constructions 风力涡轮机的雷达微多普勒:使用慢旋转线性有线结构的模拟和分析
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991210
O. Krasnov, A. Yarovoy
{"title":"Radar micro-Doppler of wind-turbines: Simulation and analysis using slowly rotating linear wired constructions","authors":"O. Krasnov, A. Yarovoy","doi":"10.1109/EURAD.2014.6991210","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991210","url":null,"abstract":"The developed simple electromagnetic (EM) model of wind-turbine's main structural elements as the linear wired constrictions provides the possibility to simulate and analyze the temporal pattern of observed radar Doppler spectra (micro-Doppler) for different relations between turbines rotation frequency, radar pulse repetition frequency and duration of the Doppler measurement interval. The model validation using the PARSAX radar experimental data shows the ability to reproduce the main feature of observed Doppler spectra, which can be used for better EM simulation of real wind turbines and for the development of signal processing algorithms for wind-turbines clutter suppression in modern Doppler radars.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128637647","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: 6
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