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Limitations of the Singulariy Expansion Method in the characterization of antennas 奇异展开法在天线表征中的局限性
2013 IEEE Radar Conference (RadarCon13) Pub Date : 2013-09-09 DOI: 10.1109/RADAR.2013.6586153
Amien Rialet, Ahia M. M. Antar, M. Clénet
{"title":"Limitations of the Singulariy Expansion Method in the characterization of antennas","authors":"Amien Rialet, Ahia M. M. Antar, M. Clénet","doi":"10.1109/RADAR.2013.6586153","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6586153","url":null,"abstract":"This paper reports on a technique based on the Singularity Expansion Method (SEM) to completely characterize antennas. This technique provides a full model of the Antenna Transfer Function (ATF) in the frequency domain or the Antenna Impulse Response (AIR) in the time domain based on a set of few parameters. However, some limitations are noted in the physical interpretation of these results. Performance and limitations of this approach are examined for two different antennas: a monopole and an Ultra-Wide Band (UWB) antenna.","PeriodicalId":396946,"journal":{"name":"2013 IEEE Radar Conference (RadarCon13)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114970992","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
An extended three-component scattering power decomposition for polarimetric SAR data 偏振SAR数据的扩展三分量散射功率分解
2013 IEEE Radar Conference (RadarCon13) Pub Date : 2013-09-09 DOI: 10.1109/RADAR.2013.6586104
Chunle Wang, Weidong Yu
{"title":"An extended three-component scattering power decomposition for polarimetric SAR data","authors":"Chunle Wang, Weidong Yu","doi":"10.1109/RADAR.2013.6586104","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6586104","url":null,"abstract":"This paper presents an extended three-component scattering power decomposition method that employs the co-polarized correlation coefficients in linear and circular polarization bases to analyze the dominant scattering mechanism that gives rise to the observed backscatter in polarimetric synthetic aperture radar (SAR) data. For the targets whose dominant scattering mechanism can be explicitly confirmed, the best fit dominating contribution is first computed using the general volume, surface or double bounce scattering models, and subsequently the residual components from the remainder power. By applying the new decomposition scheme to fully polarimetric SAR images, it is shown that the new method not only inherits the advantages of the classic three-component scattering power decomposition but also gives prominence to the targets characterized by strong volume, surface and double bounce scatterings.","PeriodicalId":396946,"journal":{"name":"2013 IEEE Radar Conference (RadarCon13)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124251946","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
ICE-SAIS — Space-based AIS and SAR for improved Ship and Iceberg Monitoring ICE-SAIS -用于改进船舶和冰山监测的天基AIS和SAR
2013 IEEE Radar Conference (RadarCon13) Pub Date : 2013-09-09 DOI: 10.1109/RADAR.2013.6586007
J. English, Robert A. Hewitt, D. Power, J. Tunaley
{"title":"ICE-SAIS — Space-based AIS and SAR for improved Ship and Iceberg Monitoring","authors":"J. English, Robert A. Hewitt, D. Power, J. Tunaley","doi":"10.1109/RADAR.2013.6586007","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6586007","url":null,"abstract":"The ICE-SAIS project uses Space-based Automatic Identification System (S-AIS) data in conjunction with satellite Synthetic Aperture Radar (SAR) imagery for Ship and Iceberg Monitoring. The objectives of this work are to exploit S-AIS data for collecting groundtruth to improve existing ship/iceberg discrimination algorithms and to demonstrate the utility of S-AIS data for operational iceberg surveillance. Preliminary results and an outline of the future work are presented here.","PeriodicalId":396946,"journal":{"name":"2013 IEEE Radar Conference (RadarCon13)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125910198","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
Adaptive CFAR detection in heterogeneous Compound-Gaussian 非均质化合物-高斯的自适应CFAR检测
2013 IEEE Radar Conference (RadarCon13) Pub Date : 2013-09-09 DOI: 10.1109/RADAR.2013.6586011
X. Peng, L. Kong, Tianxian Zhang, Xuanbo Fang, Zhenxing Chen
{"title":"Adaptive CFAR detection in heterogeneous Compound-Gaussian","authors":"X. Peng, L. Kong, Tianxian Zhang, Xuanbo Fang, Zhenxing Chen","doi":"10.1109/RADAR.2013.6586011","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6586011","url":null,"abstract":"In this paper, we focus on the performance improvement of constant false alarm rate (CFAR) detector in heterogeneous Compound-Gaussian background. This paper is motivated by the fact that the detectors' performance degradation when an unknown located clutter edge exists in the reference window that divide the data samples into two different independent and identically distributed (IID) Compound-Gaussian distribution. To account for this issue, we propose an automatic clutter edge estimation algorithm based on goodness of fit (GoF) which can select IID data with the cell under test (CUT), and we also suggest a CFAR detector (CFARD) uses this clutter edge estimation algorithm as preprocessing to enhance the detection performance around clutter edges. Simulations are provided to demonstrate the performance of the proposed CFARD in comparison with Ordered-Statistic-CFARD (OS-CFARD).","PeriodicalId":396946,"journal":{"name":"2013 IEEE Radar Conference (RadarCon13)","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123702960","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
Requirements for next generation automotive radars 对下一代汽车雷达的要求
2013 IEEE Radar Conference (RadarCon13) Pub Date : 2013-09-09 DOI: 10.1109/RADAR.2013.6586127
M. Murad, I. Bilik, M. Friesen, J. Nickolaou, J. Salinger, K. Geary, J. Colburn
{"title":"Requirements for next generation automotive radars","authors":"M. Murad, I. Bilik, M. Friesen, J. Nickolaou, J. Salinger, K. Geary, J. Colburn","doi":"10.1109/RADAR.2013.6586127","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6586127","url":null,"abstract":"Active safety is one of the most dynamic emerging topics in the automotive industry. Radars currently play a major role in providing sensing capabilities required to meet active safety requirements. Requirements, parameters, and characteristics of automotive radars change as a function of the operation range. The main goal of this work is to summarize sensing requirements of both short- and long-range automotive radars and to highlight present challenges to both systems. This work discusses various aspects of automotive radars, states their main challenges, and suggests possible solutions.","PeriodicalId":396946,"journal":{"name":"2013 IEEE Radar Conference (RadarCon13)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123742611","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: 48
Adaptive detection in compound-Gaussian clutter with partially correlated texture 部分相关纹理复合高斯杂波的自适应检测
2013 IEEE Radar Conference (RadarCon13) Pub Date : 2013-09-09 DOI: 10.1109/RADAR.2013.6585979
Sijia Chen, L. Kong, Jianyu Yang
{"title":"Adaptive detection in compound-Gaussian clutter with partially correlated texture","authors":"Sijia Chen, L. Kong, Jianyu Yang","doi":"10.1109/RADAR.2013.6585979","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6585979","url":null,"abstract":"Traditionally, the land or sea clutter with unknown covariance matrix is generally modeled as compound-Gaussian distribution with completely correlated texture in high-resolution (HR) radar. However, the detailed study on the measured clutter data from the search radar exhibits that the clutter satisfies compound-Gaussian distribution with partially correlated texture. The paper mainly addresses adaptive detection based on the two-step generalized likelihood ratio test (GLRT) criterion, and proposes the estimation methods for the unknown covariance matrix under the background of this partially correlated clutter. Numerical simulations illustrate the performance of the adaptive detectors combined with the proposed estimators under various conditions.","PeriodicalId":396946,"journal":{"name":"2013 IEEE Radar Conference (RadarCon13)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125267109","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
Radar cross section modeling and measurement of electric detonators 电雷管雷达截面建模与测量
2013 IEEE Radar Conference (RadarCon13) Pub Date : 2013-09-09 DOI: 10.1109/RADAR.2013.6585978
J. Cihlár, J. Bray
{"title":"Radar cross section modeling and measurement of electric detonators","authors":"J. Cihlár, J. Bray","doi":"10.1109/RADAR.2013.6585978","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6585978","url":null,"abstract":"Improvised explosive devices (IEDs) pose a significant hazard to allied forces. Effective countermeasures should exploit components that are commonly found in IEDs. This paper presents the computer modeling and measurement of the monostatic radar cross section (RCS) of one of these components, the electric hot-wire detonator. Results indicate that the common mode associated with the detonator's casing and lead wires provides the largest RCS contribution, ranging between -22 and -16 dBsm in the 3-10 GHz frequency range. Although a differential mode can be excited between the lead wires, its contribution to the monostatic RCS is negligible. The effectiveness of twisting the lead wires to reduce the RCS is also investigated.","PeriodicalId":396946,"journal":{"name":"2013 IEEE Radar Conference (RadarCon13)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115256270","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: 4
Resonance analysis for fixed object detection and declaration 共振分析用于固定物体的检测和声明
2013 IEEE Radar Conference (RadarCon13) Pub Date : 2013-09-09 DOI: 10.1109/RADAR.2013.6586091
R. Schneible, K. Stiefvater, J. Van Damme, Y. Zhang, T. Sarkar, M. Wicks
{"title":"Resonance analysis for fixed object detection and declaration","authors":"R. Schneible, K. Stiefvater, J. Van Damme, Y. Zhang, T. Sarkar, M. Wicks","doi":"10.1109/RADAR.2013.6586091","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6586091","url":null,"abstract":"A vehicle-mounted radar testbed has been developed to detect, locate and estimate the parameters of symmetrical objects on the ground or under cover. This radar isolates (gates in time, filters in frequency) the late-time resonant returns from the skin response of objects. Late-time returns are caused by resonant currents induced on an object as the incident radar waveform impinges upon the object. Multiple observations of the late time response are captured and coherently integrated as the vehicle passes in proximity to the scene containing objects under test. The resonant frequencies of the late-time returns are only a function of the shape of the object, and are independent of viewing angle. Manmade objects have clearly exploitable resonances not observed in naturally occurring clutter returns.","PeriodicalId":396946,"journal":{"name":"2013 IEEE Radar Conference (RadarCon13)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122886426","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: 4
1D Ultra Low-Profile (ULP) EBG matrix for radar applications 用于雷达应用的一维超低轮廓(ULP) EBG矩阵
2013 IEEE Radar Conference (RadarCon13) Pub Date : 2013-09-09 DOI: 10.1109/RADAR.2013.6586043
Moustapha Salah Toubet, H. Abou Taam, B. Jecko, M. Rammal
{"title":"1D Ultra Low-Profile (ULP) EBG matrix for radar applications","authors":"Moustapha Salah Toubet, H. Abou Taam, B. Jecko, M. Rammal","doi":"10.1109/RADAR.2013.6586043","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6586043","url":null,"abstract":"This article presents a new antenna for radar applications. It is composed by a Joint Ultra Low-Profile EBG antennas (or pixels) which form a 1D Matrix. The advantage of this solution is the fact that each pixel is isolated to the neighboring ones by metallic walls which make them independent of each other and reduce the coupling levels. With this design it is possible to cover a zone with a constant energy over an angle of 40° ([-20°, 20°]), without changing the maximum directivity (12.8 dBi), the angular aperture and the sidelobes levels (less than -18 dB from the maximum directivity).","PeriodicalId":396946,"journal":{"name":"2013 IEEE Radar Conference (RadarCon13)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122059338","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
FMCW transceiver wideband sweep nonlinearity software correction FMCW收发器宽带扫描非线性软件校正
2013 IEEE Radar Conference (RadarCon13) Pub Date : 2013-09-09 DOI: 10.1109/RADAR.2013.6586032
A. Anghel, Gabriel Vasile, R. Cacoveanu, C. Ioana, S. Ciochină
{"title":"FMCW transceiver wideband sweep nonlinearity software correction","authors":"A. Anghel, Gabriel Vasile, R. Cacoveanu, C. Ioana, S. Ciochină","doi":"10.1109/RADAR.2013.6586032","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6586032","url":null,"abstract":"This paper presents a novel wideband sweep nonlinearity software correction method for a frequency modulated continuous wave (FMCW) transceiver based on the high-order ambiguity function (HAF) and time resampling. By emphasizing the polynomial-phase nature of the FMCW signal, it is shown that the HAF processing algorithm is well suited for estimating the sweep nonlinearity coefficients. The estimated coefficients are used to build a correction function which is applied by resampling the beat signal on each sweep interval. The sweep nonlinearity correction procedure is validated on real data acquired with a low-cost X-band T/R module.","PeriodicalId":396946,"journal":{"name":"2013 IEEE Radar Conference (RadarCon13)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117043511","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: 11
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