Pub Date : 2015-12-07DOI: 10.1109/EURAD.2015.7346281
P. Millot, L. Castanet, L. Casadebaig, N. Maaref, A. Gaugue, M. Ménard, J. Khamlichi, G. Louis, N. Fortino, J. Dauvignac, G. Clementi, M. Schortgen, L. Quellec, V. Laroche
the paper presents a novel “Through-The-Wall” radar devoted to the detection of people in motion behind a wall. It uses a new kind of 3D imaging associated with a new antenna as well as sophisticated information processing.
{"title":"An UWB Through-The-Wall radar with 3D imaging, detection and tracking capabilities","authors":"P. Millot, L. Castanet, L. Casadebaig, N. Maaref, A. Gaugue, M. Ménard, J. Khamlichi, G. Louis, N. Fortino, J. Dauvignac, G. Clementi, M. Schortgen, L. Quellec, V. Laroche","doi":"10.1109/EURAD.2015.7346281","DOIUrl":"https://doi.org/10.1109/EURAD.2015.7346281","url":null,"abstract":"the paper presents a novel “Through-The-Wall” radar devoted to the detection of people in motion behind a wall. It uses a new kind of 3D imaging associated with a new antenna as well as sophisticated information processing.","PeriodicalId":376019,"journal":{"name":"2015 European Radar Conference (EuRAD)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126536637","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}
Pub Date : 2015-12-07DOI: 10.1109/EURAD.2015.7346269
S. Rzewuski, K. Kulpa, M. Bączyk, J. Kulpa, A. Gromek
This paper describes the influence of echoes from wind farm to weather radar. Currently, the echoes from the wind farm located in radar operational range are causing interferences. These interference and signal disturbances are processed by the radar and on high level signal products visible for the operator there are fake images of clouds, rains, storms in wind farm location. In this paper the authors will show results of processing raw weather radar data on which the presence of the wind farm is observed.
{"title":"Wind farm detection using weather radar","authors":"S. Rzewuski, K. Kulpa, M. Bączyk, J. Kulpa, A. Gromek","doi":"10.1109/EURAD.2015.7346269","DOIUrl":"https://doi.org/10.1109/EURAD.2015.7346269","url":null,"abstract":"This paper describes the influence of echoes from wind farm to weather radar. Currently, the echoes from the wind farm located in radar operational range are causing interferences. These interference and signal disturbances are processed by the radar and on high level signal products visible for the operator there are fake images of clouds, rains, storms in wind farm location. In this paper the authors will show results of processing raw weather radar data on which the presence of the wind farm is observed.","PeriodicalId":376019,"journal":{"name":"2015 European Radar Conference (EuRAD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124332759","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}
Pub Date : 2015-12-07DOI: 10.1109/EURAD.2015.7346232
F. Barbaresco, M. Ruiz
Classical Radar processing for non-stationary signal, corresponding to fast time variation of Doppler Spectrum in one burst, is no longer optimal. This phenomenon could be observed for high speed or abrupt Doppler variations of clutter or target signal but also in case of target migration during the burst duration due to high range resolution. We propose new Radar Doppler processing assuming that each non-stationary signal in one burst can be split into several short signals with less Doppler resolution but locally stationary, represented by time series of Toeplitz covariance matrices. In Information Geometry (IG) framework, these time series could be defined as a geodesic path (or geodesic polygon in discrete case) on covariance Toeplitz Hermitian Positive Definite matrix manifold. For this micro-Doppler analysis, we generalize the Fréchet distance between two curves in the plane to geodesic paths in abstract IG metric spaces of covariance matrix manifold. This approach is used for robust detection of target in case of non-stationary Time-Doppler spectrum (NS-OS-HDR-CFAR).
{"title":"Radar detection for non-stationary Doppler signal in one burst based on information geometry: Distance between paths on covariance matrices manifold","authors":"F. Barbaresco, M. Ruiz","doi":"10.1109/EURAD.2015.7346232","DOIUrl":"https://doi.org/10.1109/EURAD.2015.7346232","url":null,"abstract":"Classical Radar processing for non-stationary signal, corresponding to fast time variation of Doppler Spectrum in one burst, is no longer optimal. This phenomenon could be observed for high speed or abrupt Doppler variations of clutter or target signal but also in case of target migration during the burst duration due to high range resolution. We propose new Radar Doppler processing assuming that each non-stationary signal in one burst can be split into several short signals with less Doppler resolution but locally stationary, represented by time series of Toeplitz covariance matrices. In Information Geometry (IG) framework, these time series could be defined as a geodesic path (or geodesic polygon in discrete case) on covariance Toeplitz Hermitian Positive Definite matrix manifold. For this micro-Doppler analysis, we generalize the Fréchet distance between two curves in the plane to geodesic paths in abstract IG metric spaces of covariance matrix manifold. This approach is used for robust detection of target in case of non-stationary Time-Doppler spectrum (NS-OS-HDR-CFAR).","PeriodicalId":376019,"journal":{"name":"2015 European Radar Conference (EuRAD)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131921160","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}
Pub Date : 2015-12-07DOI: 10.1109/EURAD.2015.7346249
Yu-Zhen Ma, Chenglin Cui, Byung-sung Kim, Jeong-Min Joo, Seung Hoon Jeon, Sangwook Nam
Suppressing road clutter is important for automotive radar signal processing to detect targets, which requires accurate spectral distribution of clutter. This work derives the simple clutter model for FMCW automotive radar and presents experimental results of road clutter spectrum for FMCW blind spot detection (BSD) radar at 24 GHz in various road environments. The measured power spectrum shows the spectrum distribution as the simple theory predicts.
{"title":"Road clutter spectrum of BSD FMCW automotive radar","authors":"Yu-Zhen Ma, Chenglin Cui, Byung-sung Kim, Jeong-Min Joo, Seung Hoon Jeon, Sangwook Nam","doi":"10.1109/EURAD.2015.7346249","DOIUrl":"https://doi.org/10.1109/EURAD.2015.7346249","url":null,"abstract":"Suppressing road clutter is important for automotive radar signal processing to detect targets, which requires accurate spectral distribution of clutter. This work derives the simple clutter model for FMCW automotive radar and presents experimental results of road clutter spectrum for FMCW blind spot detection (BSD) radar at 24 GHz in various road environments. The measured power spectrum shows the spectrum distribution as the simple theory predicts.","PeriodicalId":376019,"journal":{"name":"2015 European Radar Conference (EuRAD)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124674761","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}
Pub Date : 2015-12-07DOI: 10.1109/EURAD.2015.7346222
A. Patyuchenko, M. Younis, G. Krieger, Z. Wang, S. Gao, F. Qin, C. Mao, S. Glisic, W. Debski, L. Boccia, G. Amendola, E. Arnieri, M. Krstic, E. Celton, P. Penkala
This paper presents a spaceborne Synthetic Aperture Radar (SAR) system based on a highly-integrated digital beamforming (DBF) X/Ka-band receiver platform with a dual-polarization capability. Compact modular architecture of the proposed system enables the realization of various configurations of spaceborne SAR missions. This paper describes the proposed radar concept and presents one of the potential mission scenarios.
{"title":"Highly integrated dual-band digital beamforming Synthetic Aperture Radar","authors":"A. Patyuchenko, M. Younis, G. Krieger, Z. Wang, S. Gao, F. Qin, C. Mao, S. Glisic, W. Debski, L. Boccia, G. Amendola, E. Arnieri, M. Krstic, E. Celton, P. Penkala","doi":"10.1109/EURAD.2015.7346222","DOIUrl":"https://doi.org/10.1109/EURAD.2015.7346222","url":null,"abstract":"This paper presents a spaceborne Synthetic Aperture Radar (SAR) system based on a highly-integrated digital beamforming (DBF) X/Ka-band receiver platform with a dual-polarization capability. Compact modular architecture of the proposed system enables the realization of various configurations of spaceborne SAR missions. This paper describes the proposed radar concept and presents one of the potential mission scenarios.","PeriodicalId":376019,"journal":{"name":"2015 European Radar Conference (EuRAD)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115123352","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}
Pub Date : 2015-12-07DOI: 10.1109/EURAD.2015.7346282
D. Onori, F. Laghezza, F. Scotti, M. Scaffardi, A. Bogoni
A novel coherent radar/lidar integrated architecture is proposed. It is based on previously published photonic-assisted radar and presents an innovative lidar scheme. The proposed lidar sensor exploits the same mode locked laser used for radar, minimizing the additional required hardware and power budget. Moreover an integrated radar/lidar system, merging the peculiarities of both the sensors, can provide a more effective scene cognition. The new lidar, that allows precise range measurements, as well as Doppler estimation, is detailed and experimentally demonstrated.
{"title":"Coherent radar/lidar integrated architecture","authors":"D. Onori, F. Laghezza, F. Scotti, M. Scaffardi, A. Bogoni","doi":"10.1109/EURAD.2015.7346282","DOIUrl":"https://doi.org/10.1109/EURAD.2015.7346282","url":null,"abstract":"A novel coherent radar/lidar integrated architecture is proposed. It is based on previously published photonic-assisted radar and presents an innovative lidar scheme. The proposed lidar sensor exploits the same mode locked laser used for radar, minimizing the additional required hardware and power budget. Moreover an integrated radar/lidar system, merging the peculiarities of both the sensors, can provide a more effective scene cognition. The new lidar, that allows precise range measurements, as well as Doppler estimation, is detailed and experimentally demonstrated.","PeriodicalId":376019,"journal":{"name":"2015 European Radar Conference (EuRAD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130869006","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}
Pub Date : 2015-12-07DOI: 10.1109/EURAD.2015.7346356
N. T. Nguyen, G. Clementi, C. Migliaccio, N. Fortino, J. Dauvignac, J. Willebois, C. Chekroun
A wideband antenna array is developed for the land-mine detection in the desert with an on-board radar. The final array is very large and contains 128 Vivaldi antennas. The array is split into 16 sub-arrays of 8 elements. Each Vivaldi antenna is driven independently by electronic switches for SAR imaging purpose. In a first step, a sub-array of 8 elements has been studied, fabricated and measured in the anechoic chamber. In a second step, influences of the overall mechanical support and the protection radome are studied numerically and experimentally. This paper focuses on the second aspect with the minimization of both support and radome effects on the radiation performances of the Vivaldi elementary antenna.
{"title":"Wideband Vivaldi antenna array with mechanical support and protection radome for land-mine detection radar","authors":"N. T. Nguyen, G. Clementi, C. Migliaccio, N. Fortino, J. Dauvignac, J. Willebois, C. Chekroun","doi":"10.1109/EURAD.2015.7346356","DOIUrl":"https://doi.org/10.1109/EURAD.2015.7346356","url":null,"abstract":"A wideband antenna array is developed for the land-mine detection in the desert with an on-board radar. The final array is very large and contains 128 Vivaldi antennas. The array is split into 16 sub-arrays of 8 elements. Each Vivaldi antenna is driven independently by electronic switches for SAR imaging purpose. In a first step, a sub-array of 8 elements has been studied, fabricated and measured in the anechoic chamber. In a second step, influences of the overall mechanical support and the protection radome are studied numerically and experimentally. This paper focuses on the second aspect with the minimization of both support and radome effects on the radiation performances of the Vivaldi elementary antenna.","PeriodicalId":376019,"journal":{"name":"2015 European Radar Conference (EuRAD)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134366556","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}
Pub Date : 2015-12-07DOI: 10.1109/EURAD.2015.7346260
A. Gustafsson, P. Frolind, P. Andersson, J. Svedin, S. Leijon
We discuss sparse and compact phased array antenna architectures based on the use of multiple transmit antennas in order to reduce the number of needed receiver channels. We also present the design of a sparse and compact phased array antenna together with measurement results of a scene containing a car and some corner reflectors to verify the theoretical study. The sparse and compact array architectures discussed can potentially reduce the number of needed receiver channels in a phased array antenna or decrease the physical size to approximately half the conventional size.
{"title":"3D-SAR measurements using a sparse and compact array antenna architecture","authors":"A. Gustafsson, P. Frolind, P. Andersson, J. Svedin, S. Leijon","doi":"10.1109/EURAD.2015.7346260","DOIUrl":"https://doi.org/10.1109/EURAD.2015.7346260","url":null,"abstract":"We discuss sparse and compact phased array antenna architectures based on the use of multiple transmit antennas in order to reduce the number of needed receiver channels. We also present the design of a sparse and compact phased array antenna together with measurement results of a scene containing a car and some corner reflectors to verify the theoretical study. The sparse and compact array architectures discussed can potentially reduce the number of needed receiver channels in a phased array antenna or decrease the physical size to approximately half the conventional size.","PeriodicalId":376019,"journal":{"name":"2015 European Radar Conference (EuRAD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129695715","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}
Pub Date : 2015-12-07DOI: 10.1109/EURAD.2015.7346284
B. Cheong, D. Bodine, Y. Zhu, C. Fulton, S. Torres, T. Maruyama, R. Palmer
In an effort to investigate scattering characteristics of debris particles in tornadoes, a numerical polarimetric radar emulator was developed. Regions of negative differential reflectivity have commonly been observed but are still yet to be explained physically. There are hypotheses that suggest common debris alignment and/or dominant scattering from objects with high radar-cross-section (RCS) values, but they are extremely challenging to verify due to the danger within tornadoes. It is, however, possible to numerically construct the scenes through representative simulation to verify the plausible causes. This serves as our primary motivation to develop the radar emulator. The novel aspects of this work are the realistic trajectory derivation, which is based on physical air-drag model, and the representative diversity of RCS contributions from each debris particle, developed through a realistic polarimetric RCS modeling and anechoic chamber measurements.
{"title":"Emulating polarimetric radar signals from tornadic debris using a radar-cross-section library","authors":"B. Cheong, D. Bodine, Y. Zhu, C. Fulton, S. Torres, T. Maruyama, R. Palmer","doi":"10.1109/EURAD.2015.7346284","DOIUrl":"https://doi.org/10.1109/EURAD.2015.7346284","url":null,"abstract":"In an effort to investigate scattering characteristics of debris particles in tornadoes, a numerical polarimetric radar emulator was developed. Regions of negative differential reflectivity have commonly been observed but are still yet to be explained physically. There are hypotheses that suggest common debris alignment and/or dominant scattering from objects with high radar-cross-section (RCS) values, but they are extremely challenging to verify due to the danger within tornadoes. It is, however, possible to numerically construct the scenes through representative simulation to verify the plausible causes. This serves as our primary motivation to develop the radar emulator. The novel aspects of this work are the realistic trajectory derivation, which is based on physical air-drag model, and the representative diversity of RCS contributions from each debris particle, developed through a realistic polarimetric RCS modeling and anechoic chamber measurements.","PeriodicalId":376019,"journal":{"name":"2015 European Radar Conference (EuRAD)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132221273","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}
Pub Date : 2015-12-07DOI: 10.1109/EURAD.2015.7346241
M. T. Falconi, D. Comite, F. Marzano, A. Galli, P. Lombardo
Near-field effects in Forward Scatter Radar (FSR) applications are analyzed, focusing the attention on the characterization of the received signal as a function of target/antenna distance and of target size. A simulated analysis of the forward-scatter cross-section (FS-CS) is carried out for a typical FSR scenario where a movable target crosses the baseline. In addition to the known far-field conditions, the results are presented also for the significant near-field Fresnel region, based on a suitable numerical evaluation of the diffraction integrals as a function of the geometrical and physical parameters involved. According to a basic modeling approach, the overall FS amplitude and phase signature of typical conductive targets have been evaluated in terms of their size and distance to the antennas. The above investigations allow not only for an accurate analysis of the forward scattering problem but also for a physical insight on the performance of the FSR in near-field conditions.
{"title":"Analysis of canonical targets in near field for Forward Scatter Radar applications","authors":"M. T. Falconi, D. Comite, F. Marzano, A. Galli, P. Lombardo","doi":"10.1109/EURAD.2015.7346241","DOIUrl":"https://doi.org/10.1109/EURAD.2015.7346241","url":null,"abstract":"Near-field effects in Forward Scatter Radar (FSR) applications are analyzed, focusing the attention on the characterization of the received signal as a function of target/antenna distance and of target size. A simulated analysis of the forward-scatter cross-section (FS-CS) is carried out for a typical FSR scenario where a movable target crosses the baseline. In addition to the known far-field conditions, the results are presented also for the significant near-field Fresnel region, based on a suitable numerical evaluation of the diffraction integrals as a function of the geometrical and physical parameters involved. According to a basic modeling approach, the overall FS amplitude and phase signature of typical conductive targets have been evaluated in terms of their size and distance to the antennas. The above investigations allow not only for an accurate analysis of the forward scattering problem but also for a physical insight on the performance of the FSR in near-field conditions.","PeriodicalId":376019,"journal":{"name":"2015 European Radar Conference (EuRAD)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133073029","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}
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