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2018 15th European Radar Conference (EuRAD)最新文献

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Frequency Domain System Identification for High Resolution IRCI-Free Collocated MIMO Radar 高分辨率无irci并置MIMO雷达频域系统辨识
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546651
M. Alshaya, Mehrdad Yaghoobi, B. Mulgrew
{"title":"Frequency Domain System Identification for High Resolution IRCI-Free Collocated MIMO Radar","authors":"M. Alshaya, Mehrdad Yaghoobi, B. Mulgrew","doi":"10.23919/EURAD.2018.8546651","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546651","url":null,"abstract":"A frequency domain system identification based multiple-input multiple-output (MIMO-FDSI) range profile estimation algorithm is proposed which is robust to both partial correlation among the transmitted waveforms and the digital beamforming pointing error. In this paper, a frequency division multiple access (FDMA) is adopted in such a way that each transmitter emits a conventional linear frequency modulated (LFM) waveform modulated by a different carrier frequency and the obtained range resolution corresponds to the total bandwidth of the receiver. The proposed method, in addition, has the property of free Inter-Range Cell Interference (IRCI).","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124997436","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: 5
Additive Manufactured Antenna in Mixed Material Technology for 24 GHz FMCW Miniaturized Radar 24ghz FMCW小型化雷达混合材料增材制造天线
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/eumc.2018.8541668
C. Yepes, E. Gandini, R. V. Dijk, Fabien Bruning, H. Maalderink, S. Monni, F. V. van Vliet
{"title":"Additive Manufactured Antenna in Mixed Material Technology for 24 GHz FMCW Miniaturized Radar","authors":"C. Yepes, E. Gandini, R. V. Dijk, Fabien Bruning, H. Maalderink, S. Monni, F. V. van Vliet","doi":"10.23919/eumc.2018.8541668","DOIUrl":"https://doi.org/10.23919/eumc.2018.8541668","url":null,"abstract":"A 24 GHz antenna design for miniaturized FMCW radar is presented. The antenna was manufactured with additive manufacturing technology at TNO. The characterization of the polymer material used in the fabrication was carried out and the measurement results of the antenna are presented in this work. A good agreement between simulations and measurements was achieved.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130197516","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
Mixed-Signal Transmitter Leakage Cancellation for PMCW MIMO Radar PMCW MIMO雷达混合信号发射机泄漏消除
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546652
M. Bauduin, A. Bourdoux
{"title":"Mixed-Signal Transmitter Leakage Cancellation for PMCW MIMO Radar","authors":"M. Bauduin, A. Bourdoux","doi":"10.23919/EURAD.2018.8546652","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546652","url":null,"abstract":"PMCW (Phase-Modulated Continuous Wave) radar is an effective solution for large (Multiple Input Multiple Output) MIMO radars. But, as for every continuous wave radar, the performances of PMCW radars can be strongly degraded by the leakage of the transmitted signal to the receiver. This paper proposes a mixed-signal solution which aims at cancelling the transmitter leakage in the receiver chain, just after the mixer, in order to improve the radar sensitivity. For that purpose, we need, first, to estimate the spillover from each transmitter. Then, a cancellation signal is computed digitally for each receiver and injected, through a Digital-to-Analog Converter (DAC), in baseband. We show by simulation that a significant sensitivity gain is achievable.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127682613","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
Orthogonal Waveform Designs for Pulse-Based and Continuous-Wave MIMO Radars 基于脉冲和连续波MIMO雷达的正交波形设计
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546583
Gowthami Pypalli, J. Mietzner, V. Winkler, P. Hoeher
{"title":"Orthogonal Waveform Designs for Pulse-Based and Continuous-Wave MIMO Radars","authors":"Gowthami Pypalli, J. Mietzner, V. Winkler, P. Hoeher","doi":"10.23919/EURAD.2018.8546583","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546583","url":null,"abstract":"We investigate orthogonal waveform designs for pulse-based and continuous-wave multiple-input multiple-output (MIMO) radars. For the pulse-based MIMO option, we study different intra-pulse modulation schemes based on both linear and non-linear frequency modulation (LFM/ NLFM) and establish approximate orthogonality between the transmit antennas by means of frequency shifts and up-/down chirp combinations. For the continuous-wave MIMO option, we study a range-domain technique based on M-sequences and show that the range sidelobe behavior can be significantly improved by employing suitable mismatched filtering (MMF) at the receiver.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128537434","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
Expanding the Unambiguous Velocity Limitation of the Stepped-Carrier OFDM Radar Scheme 扩展步进载波OFDM雷达方案的明确速度限制
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.18725/OPARU-12027
B. Schweizer, Daniel Schindler, Christina Knill, J. Hasch, C. Waldschmidt
{"title":"Expanding the Unambiguous Velocity Limitation of the Stepped-Carrier OFDM Radar Scheme","authors":"B. Schweizer, Daniel Schindler, Christina Knill, J. Hasch, C. Waldschmidt","doi":"10.18725/OPARU-12027","DOIUrl":"https://doi.org/10.18725/OPARU-12027","url":null,"abstract":"The main limitation for the practical implementation of OFDM radars is the required high sampling rate of AD/DA converters. It can be solved by using a stepped-carrier OFDM scheme. Thereby, the same range and Doppler resolution is obtained as for a standard OFDM scheme at the cost of a reduced unambiguously measurable velocity. This paper presents a method to determine the actual velocity even for targets that violate the unambiguous velocity limitation. It is based on characteristics of the DFT and it is suitable for scenes with few targets or if all targets have a similar velocity.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126606617","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
BPSK-based MIMO FMCW Automotive-Radar Concept for 3D Position Measurement 基于bpsk的MIMO FMCW汽车雷达三维位置测量概念
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546657
Y. L. Sit, Gang Li, Sarath Manchala, H. Afrasiabi, C. Sturm, U. Lubbert
{"title":"BPSK-based MIMO FMCW Automotive-Radar Concept for 3D Position Measurement","authors":"Y. L. Sit, Gang Li, Sarath Manchala, H. Afrasiabi, C. Sturm, U. Lubbert","doi":"10.23919/EURAD.2018.8546657","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546657","url":null,"abstract":"A novel concept of employing BPSK codes to achieve a simultaneous transmission in a 79 GHz FMCW automotive radar is presented in this paper. With a MIMO topology, simultaneous azimuth and elevation measurements become possible by utilizing the angle-dependent phase difference between the antenna arrays. Hence, this approach can offer a 4D detection of range, azimuth, elevation and Doppler-velocity for each detected target. This concept has been verified through test drives in multiple scenarios and the measurements showed that the elevation accuracy is only limited by calibration.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130637801","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
Remotely Piloted Aircraft Detection with Persistent Radar 用持久雷达探测遥控飞机
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546546
Álvaro Duque de Quevedo, Fernando Ibanez Urzaiz, J. G. Menoyo, Alberto Asensio López
{"title":"Remotely Piloted Aircraft Detection with Persistent Radar","authors":"Álvaro Duque de Quevedo, Fernando Ibanez Urzaiz, J. G. Menoyo, Alberto Asensio López","doi":"10.23919/EURAD.2018.8546546","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546546","url":null,"abstract":"This paper presents experimental results on drone detection with a persistent frequency modulated continuous wave (FMCW) radar system, working at 8.75 GHz (X-band). The system and its main blocks are briefly introduced. Subsequently, the document presents the chosen scenario for the tests, and shows the results of the signal processing, achieving a DJI-Phantom-4 detection at a range up to 2 km. The results are illustrated with range-Doppler matrices and detection figures. Range, speed and azimuth accuracies are discussed, considering the drone GPS data. Finally, the paper introduces an statistical radar-cross-section (RCS) study based on the processed data, in order to classify the drone as a Swerling target, and discusses the drone average RCS.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"395 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131892581","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
Efficient Shaped-Beam Reflectarray Design Using Machine Learning Techniques 利用机器学习技术设计高效异形光束反射阵列
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/eumc.2018.8541763
D. R. Prado, J. A. López-Fernández, M. Arrebola, G. Goussetis
{"title":"Efficient Shaped-Beam Reflectarray Design Using Machine Learning Techniques","authors":"D. R. Prado, J. A. López-Fernández, M. Arrebola, G. Goussetis","doi":"10.23919/eumc.2018.8541763","DOIUrl":"https://doi.org/10.23919/eumc.2018.8541763","url":null,"abstract":"This papers introduces the use of machine learning techniques for an efficient design of shaped-beam reflectarrays considerably accelerating the overall process while providing accurate results. The technique is based on the use of Support Vector Machines (SVMs) for the characterization of the reflection coefficient matrix, which provides an efficient way for deriving the scattering parameters associated with the unit cell dimensions. In this way, the SVMs are used within the design process to obtain a reflectarray layout instead of a Full-Wave analysis tool based on Local Periodicity (FW-LP). The accuracy of the SVMs is assessed and the influence of the discretization of the angle of incidence is studied. Finally, a considerable acceleration is achieved with regard to the FW-LP and other works in the literature employing Artificial Neural Networks.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"231 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115106539","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
Design of Broadband Gap Waveguide Transitions for Millimeter-Wave Antenna Arrays 毫米波天线阵列宽带间隙波导跃迁设计
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/eumc.2018.8541391
Miguel Ferrando-Rocher, D. Sánchez-Escuderos, Jose I. Herranz-Herruzo, A. Valero-Nogueira
{"title":"Design of Broadband Gap Waveguide Transitions for Millimeter-Wave Antenna Arrays","authors":"Miguel Ferrando-Rocher, D. Sánchez-Escuderos, Jose I. Herranz-Herruzo, A. Valero-Nogueira","doi":"10.23919/eumc.2018.8541391","DOIUrl":"https://doi.org/10.23919/eumc.2018.8541391","url":null,"abstract":"This paper presents two novel transitions in gap-waveguide technology. The first transition, a rectangular waveguide to groove-gap waveguide in the V band, shows a return loss better than 15 dB within a 15% bandwidth. The second transition, a rectangular waveguide to ridge-gap waveguide in the Ka band, exhibits 20% bandwidth with a return loss level above 20 dB. These transitions are aimed to serve as input ports in corporate feeding networks designed in gap-waveguide technology. Such technology has recently demonstrated to be advantageous to properly distribute the energy in high-gain array antennas.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"404 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115610526","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
A Compact Dual-band Antenna at Ka-band Frequencies for Next Generation Cellular Applications 用于下一代蜂窝应用的ka频段紧凑型双频天线
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546655
Ting-Jui Huang, H. Hsu, H. Chou
{"title":"A Compact Dual-band Antenna at Ka-band Frequencies for Next Generation Cellular Applications","authors":"Ting-Jui Huang, H. Hsu, H. Chou","doi":"10.23919/EURAD.2018.8546655","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546655","url":null,"abstract":"This paper presents a new design of a compact-sized dual –band antenna operating at 28 GHz and 38 GHz for 5G cellular applications. Based on the slot-coupled patch configuration, the antenna exhibited a good impedance matching with reasonable gain of 5.5/6.5 dBi at 28/38 GHz within the band of interest. The measured total radiation efficiency of the antenna was 88.9%/83.7% at 28/38 GHz.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"15 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114086025","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
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