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

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Ground Based Synthetic Aperture Radar with 3D Imaging Capability 具有三维成像能力的地面合成孔径雷达
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546555
M. Pieraccini, N. Rojhani, L. Miccinesi
{"title":"Ground Based Synthetic Aperture Radar with 3D Imaging Capability","authors":"M. Pieraccini, N. Rojhani, L. Miccinesi","doi":"10.23919/EURAD.2018.8546555","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546555","url":null,"abstract":"In this paper the authors propose a novel Ground-based Synthetic Aperture Radar (GBSAR) system able to acquire both monostatic and bistatic images. Monostatic images are acquired in a few minutes but they provide only 2D information about the targets in its field of view. Bistatic images require several hours, but they give 3D information. This 3D imaging capability can be of interest when the radar equipment is used to image complex scenarios, where the altitude (z-axis) is not an unambiguous function of the (x,y) position. The letter reports the working principle and an experimental test of the equipment.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"13 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":"134352160","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
Real-Time Wireless Vibration Monitoring Using SAW RFID Tags Coupled with Sensors 使用SAW RFID标签与传感器耦合的实时无线振动监测
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546624
Pau Caldero, Dominik Zoeke
{"title":"Real-Time Wireless Vibration Monitoring Using SAW RFID Tags Coupled with Sensors","authors":"Pau Caldero, Dominik Zoeke","doi":"10.23919/EURAD.2018.8546624","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546624","url":null,"abstract":"This work addresses the challenge of simultaneous wireless identification and real-time wideband vibration measurement using a SAW (Surface Acoustic Wave) device. Vibration of rotating machinery is imprinted in the SAW ID tag response via modulation of the antenna feed impedance using external sensors. The key component at signal processing side is low-latency preprocessing to ensure that vibration information is acquired unambiguously where the system concept basically allows the measurement of frequencies from zero up to several hundred kilohertz. Feasibility is demonstrated based on real-world measurements of healthy and faulty rotating fans.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"22 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":"131902110","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
A Circularly Polarized Circular Antenna Array for Satellite TV Reception 卫星电视接收用圆极化圆天线阵列
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/eumc.2018.8541540
Ahmed Alieldin, Yi Huang, M. Stanley, S. Joseph
{"title":"A Circularly Polarized Circular Antenna Array for Satellite TV Reception","authors":"Ahmed Alieldin, Yi Huang, M. Stanley, S. Joseph","doi":"10.23919/eumc.2018.8541540","DOIUrl":"https://doi.org/10.23919/eumc.2018.8541540","url":null,"abstract":"This paper proposes a novel design of a wideband compact circularly polarized circular antenna array for satellite TV reception. The circular array is based on a wideband circularly polarized spiral antenna element which has excellent impedance matching (VSWR ≤ 1.5) and axial ratio bandwidths for the satellite-to-ground downlink at Ku-band from 11.7-12.7 GHz. A 16-element circular sub-array is presented with a fixed 23° electronically steered beam upwards which is appropriate for Astra satellite communications in the UK. Furthermore, circular sub-arrays with different numbers of elements (8, 16, 24, 32 and, 40) are also studied. It is shown that the circular antenna array is particularly suitable for satellite TV reception while being vertically mounted on a wall because of its low profile, broadband and electronically steered beam.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"38 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":"132975765","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 and demonstration of Linearly-Polarized Transmit-Arrays in X-band x波段线偏振发射阵列的设计与演示
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/eumc.2018.8541372
H. Kaouach, M. A. Belaid
{"title":"Design and demonstration of Linearly-Polarized Transmit-Arrays in X-band","authors":"H. Kaouach, M. A. Belaid","doi":"10.23919/eumc.2018.8541372","DOIUrl":"https://doi.org/10.23919/eumc.2018.8541372","url":null,"abstract":"This paper describes the design and demonstration of planar transmit-arrays operating in X-band with 1-bit phase quantization and based on wideband high efficiency unit cells. The unit cell consists of two identical square patch antennas loaded by C-loop slots and interconnected in their centers by a metalized via hole. The proposed transmit-array achieves a maximum directi-vity of 25.1 dBi and a gain of 22.8 dBi. Radiation efficiency of 56.3% is also obtained with a 1-dB gain bandwidth of up to 9.2% around 9.85 GHz and very low cross-polarization levels. The beam-steering up to 30° is achieved by tilting the focal source.","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":"130760916","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
Comparison between Rectangular and Hexagonal Synthetic Apertures for Radar Imaging 雷达成像中矩形和六边形合成孔径的比较
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546654
Jonas Wagner, J. Barowski, C. Dahl, I. Rolfes
{"title":"Comparison between Rectangular and Hexagonal Synthetic Apertures for Radar Imaging","authors":"Jonas Wagner, J. Barowski, C. Dahl, I. Rolfes","doi":"10.23919/EURAD.2018.8546654","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546654","url":null,"abstract":"In this paper, rectangular and hexagonal spatial distributions are analyzed in order to compare their usability to form the aperture of a nearfield Synthetic Aperture Radar (SAR) using the backprojection algorithm. The algorithm itself and its computational efficiency are in general independent from the antenna grid. It is shown that this approach is suitable to reduce the maximum side lobe level by 12.5% with nearly no effect on the main lobe width, if the spacing between the antenna positions is chosen in the right way. Additionally this paper presents radar measurement results at 144 GHz that support the theoretical investigations.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"399 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113998385","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
Autonomous Driving Features based on 79 GHz Polarimetric Radar Data 基于79 GHz极化雷达数据的自动驾驶特性
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546632
S. Trummer, Gerhard F. Hamberger, R. Koerber, U. Siart, T. Eibert
{"title":"Autonomous Driving Features based on 79 GHz Polarimetric Radar Data","authors":"S. Trummer, Gerhard F. Hamberger, R. Koerber, U. Siart, T. Eibert","doi":"10.23919/EURAD.2018.8546632","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546632","url":null,"abstract":"Predicting the behavior of the environment precisely is an important challenge of autonomous driving. With this purpose in mind, the potential of polarimetric radar technology is shown in this paper. The main features like object identification and exact contour detection allow the analysis of different layers of velocity and, thus, a clearer target classification. Another key feature is street condition measurement, which is necessary to calculate safe velocities, for example for driving around a curve. These polarimetric features are explained with examples which include actual radar data and signal analysis.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"2 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":"121844798","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
Frequency Doubler Based Outphasing System for Millimeter Wave Vector Signal Generation 基于倍频器的毫米波矢量信号消相系统
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/eumc.2018.8541687
A. Chung, M. B. Rejeb, A. Darwish, H. A. Hung, S. Boumaiza
{"title":"Frequency Doubler Based Outphasing System for Millimeter Wave Vector Signal Generation","authors":"A. Chung, M. B. Rejeb, A. Darwish, H. A. Hung, S. Boumaiza","doi":"10.23919/eumc.2018.8541687","DOIUrl":"https://doi.org/10.23919/eumc.2018.8541687","url":null,"abstract":"In this paper we propose a compensation technique for millimeter wave (mm-wave) frequency doubler based outphasing system adopted to generate wideband vector modulated signals. The compensation technique utilizes multi-tone test signals to detect the system’s distortions. These include the frequency doubler’s unavoidable non-linearity due to the band limitation of the phase modulated outphasing signals and the gain and phase mismatch between the two outphasing signal paths. For that, an interleaved multi-tone modulated signal is used to characterize these non-idealities and synthesize a memoryless predistorter and a linear outphasing mismatch compensation filter to mitigate their effects. These blocks are subsequently applied for generating digitally modulated signals at 25 GHz with modulation bandwidths of 80 and 160 MHz with improved quality of signal.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"32 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":"127992090","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 W-Band Spatial Power-Combining Amplifier using GaN MMICs 一种基于GaN mmic的w波段空间功率组合放大器
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/eumc.2018.8541631
L. Samoska, Mark Taylor, J. Velazco, A. Fung, R. Lin, A. Peralta, R. Gawande
{"title":"A W-Band Spatial Power-Combining Amplifier using GaN MMICs","authors":"L. Samoska, Mark Taylor, J. Velazco, A. Fung, R. Lin, A. Peralta, R. Gawande","doi":"10.23919/eumc.2018.8541631","DOIUrl":"https://doi.org/10.23919/eumc.2018.8541631","url":null,"abstract":"In this paper, we describe a miniature power-combiner for monolithic millimeter-wave integrated circuit (MMIC) chips using spatial power-combining with cavity modes. We have designed GaN MMIC power amplifier chips for 94 GHz, and illustrate the concept of the W-Band Spatial Power Combining Amplifier (WSPCA). Using 1 Watt, 94 GHz MMIC chips in a two-way cavity mode combiner, we were able to achieve 2 Watts of output power with 9 dB gain and 15 % PAE. This technique could be extended to high power MMICs and larger numbers of chips to achieve higher output power in a compact size. Current applications include earth science radar, and may be extended to other applications requiring wider bandwidth.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"81 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":"115431072","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
Cumulative Probability of Detection of Fast Targets Using Frequency Diverse Array Radar 分频阵列雷达探测快速目标的累积概率
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546627
R. Çetiner, A. Hizal
{"title":"Cumulative Probability of Detection of Fast Targets Using Frequency Diverse Array Radar","authors":"R. Çetiner, A. Hizal","doi":"10.23919/EURAD.2018.8546627","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546627","url":null,"abstract":"One dimensional Frequency Diverse Array (FDA) concept is applied to a planar phased array (PA) radar in one dimension. The radar operates as a pulsed FDA in the transmission (TX) mode in one dimension while it operates as a pulsed phased array (PA) in the other TX dimension. In the receiving (RX) mode the array is full PA. The low energy of the TX FDA waveform is compensated by the rapid angular scanning and the use of the cumulative probability of detection scheme.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"74 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":"130758420","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 and Near Field of an Engine Digital Mock-up under UHF and S Band Radar Illumination UHF和S波段雷达照射下发动机雷达截面和近场数字模型
2018 15th European Radar Conference (EuRAD) Pub Date : 2018-09-01 DOI: 10.23919/EURAD.2018.8546641
S. Tuan, Shen Shou Max Chung
{"title":"Radar Cross Section and Near Field of an Engine Digital Mock-up under UHF and S Band Radar Illumination","authors":"S. Tuan, Shen Shou Max Chung","doi":"10.23919/EURAD.2018.8546641","DOIUrl":"https://doi.org/10.23919/EURAD.2018.8546641","url":null,"abstract":"RF stealth is an important feature of advanced fighters, and the engine represents a large scattering source. In this paper we present a digital mock-up of a fighter jet engine, and simulate its radar cross section (RCS) in UHF and S band with multi-level fast multipole method (MLFMM), and plot its near fields inside the engine. We found the boresight S-band RCS can be as high as 20 dBsm, and the near field plots indicate radar wave can transmit through the engine even at 400 MHz.","PeriodicalId":171460,"journal":{"name":"2018 15th European Radar Conference (EuRAD)","volume":"106 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":"117314915","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
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