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Simultaneous beam steering of multiple signals based on optical wavelength selective switch 基于波长选择开关的多信号同步光束控制
2014 11th European Radar Conference Pub Date : 2015-04-28 DOI: 10.1017/S1759078715000707
G. Serafino, M. Presi, A. Malacarne, P. Ghelfi, C. Porzi, A. Bogoni
{"title":"Simultaneous beam steering of multiple signals based on optical wavelength selective switch","authors":"G. Serafino, M. Presi, A. Malacarne, P. Ghelfi, C. Porzi, A. Bogoni","doi":"10.1017/S1759078715000707","DOIUrl":"https://doi.org/10.1017/S1759078715000707","url":null,"abstract":"A novel photonics-based scheme for the independent and simultaneous beam steering of multiple RF signals at a wideband phased array antenna is presented. A wavelength selective switch is employed both as a wavelength router to feed multiple antenna elements, and as a tunable phase shifter to independently control the phase of each signal at any antenna element. In the experiment, two signals at 12.5GHz and 37.5GHz are simultaneously fed to the four output ports of the wavelength selective switch with independent and tunable phase shifts, emulating the independent steering of two signals in a four-element phased-array antenna. The results confirm the precision and flexibility of the proposed scheme.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127737132","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
GigaRad — A multi-purpose high-resolution ground-based radar system: System concept, error correction strategies and performance verification GigaRad——多用途高分辨率地基雷达系统:系统概念、纠错策略和性能验证
2014 11th European Radar Conference Pub Date : 2015-04-16 DOI: 10.1017/S175907871500063X
M. Jirousek, Sebastian Iff, S. Anger, M. Peichl
{"title":"GigaRad — A multi-purpose high-resolution ground-based radar system: System concept, error correction strategies and performance verification","authors":"M. Jirousek, Sebastian Iff, S. Anger, M. Peichl","doi":"10.1017/S175907871500063X","DOIUrl":"https://doi.org/10.1017/S175907871500063X","url":null,"abstract":"Recently DLR has developed and constructed a new experimental radar instrument for various applications like radar signature collection, SAR/ISAR imaging, motion detection, tracking, etc., where high performance and high flexibility have been the key drivers for system design. Consequently a multipurpose and multi-channel radar called GigaRad is operated in X band and allows an overall bandwidth of up to 6 GHz, resulting in a theoretical range resolution of up to 2.5 cm. Hence, primary obligation is a detailed analysis of various possible error sources, being of no or less relevance for low-resolution systems. A high degree of digital technology enables advanced signal processing and error correction to be applied. The paper outlines technical main features of the radar, the basic error correction strategy and illustrates some first imaging results.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116467723","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
Distance measurements based on guided wave 24GHz dual tone six-port radar 基于导波24GHz双音六端口雷达的距离测量
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991206
S. Lindner, F. Barbon, S. Linz, S. Mann, R. Weigel, A. Koelpin
{"title":"Distance measurements based on guided wave 24GHz dual tone six-port radar","authors":"S. Lindner, F. Barbon, S. Linz, S. Mann, R. Weigel, A. Koelpin","doi":"10.1109/EURAD.2014.6991206","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991206","url":null,"abstract":"In the following, a continuous wave (cw) radar system based on the Six-Port principle will be shown for measurement tasks at enclosed systems needing micrometer accuracy as well as high update rates like tank level monitoring or hydraulic cylinder piston control. To exceed the ambiguity limit of such an interferometric system a dual tone approach is used, extending the unambiguity range to several wavelengths. The system will be presented with measurement results at 24 GHz within a WR42 waveguide to prove the feasibility of the proposed concept.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"26 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":"129181938","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
Consumer radar: Opportunities and challenges 消费者雷达:机遇与挑战
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991193
R. Evans, P. Farrell, G. Felic, H. T. Duong, H. V. Le, J. Li, M. Li, W. Moran, E. Skafidas
{"title":"Consumer radar: Opportunities and challenges","authors":"R. Evans, P. Farrell, G. Felic, H. T. Duong, H. V. Le, J. Li, M. Li, W. Moran, E. Skafidas","doi":"10.1109/EURAD.2014.6991193","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991193","url":null,"abstract":"Modern semiconductor technology, such as small geometry CMOS, is providing the opportunity to build very small and very low cost single chip radar systems operating at millimeter wave frequencies. Such tiny radar systems open up a vast range of new applications from automotive radar, safety helmet radar, bicycle radar, health monitoring radar, robot guidance radar, micro-UAV surveillance radar, and a host of other applications. Co-operative networks of these tiny radars also constitute an exciting possibility. Considerable progress has been made in designing and building millimeter wave CMOS radar systems and addressing the technology limitations imposed by CMOS. However many challenges remain relating to interference mitigation when there exist large numbers of small radars operating in close spacial and frequency proximity to each other. Waveform diversity and cognitive radar techniques assist in addressing these challenges. This talk will discuss current work on CMOS radar hardware, signal processing, waveform scheduling and the idea of opportunistic radar. Further progress on approaches to determining fundamental performance limitations of tiny radar systems is currently underway.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"04 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":"129344940","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: 21
An optimised processor for FMCW radar FMCW雷达的优化处理器
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EUMC.2014.6986808
T. Styles, Leon Wildman
{"title":"An optimised processor for FMCW radar","authors":"T. Styles, Leon Wildman","doi":"10.1109/EUMC.2014.6986808","DOIUrl":"https://doi.org/10.1109/EUMC.2014.6986808","url":null,"abstract":"This paper presents a digital signal processor architecture optimized for FMCW radar systems, as used in automotive, security and surveillance applications. The novel architecture is described, along with the size, power consumption and performance for key radar processing operations. Architecture features include a flexible compute unit optimized for FFT operations and a two-dimensional register file. An FPGA implementation of the processor is used to demonstrate range-Doppler processing in real-time.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"6 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":"130581958","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
Sensitivity-based reconstruction in microwave imaging using near-field calibration measurements 基于近场校准测量的微波成像灵敏度重建
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991212
Sheng Tu, Yifan Zhang, J. McCombe, N. Nikolova
{"title":"Sensitivity-based reconstruction in microwave imaging using near-field calibration measurements","authors":"Sheng Tu, Yifan Zhang, J. McCombe, N. Nikolova","doi":"10.1109/EURAD.2014.6991212","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991212","url":null,"abstract":"The sensitivity-based microwave imaging method requires the incident field distributions in the background medium, which insofar have been derived from analytical or simulation models. However, such models often prove inadequate in near-field imaging due to the complexity of the background and the acquisition setup. Here, we propose a calibration technique to efficiently acquire the necessary field information via measurements of a known calibration object containing a sufficiently small “point” scatterer. Only measurement data is needed to generate the images, i.e., the simulation or analytical incident-field model is replaced by a measurement-based model. The approach is validated through experiments with a planar raster scanning system. Two different tissue mimicking phantoms are imaged: i) dielectric cylinders embedded in a 5-cm thick layer of high-loss dielectric material and ii) tissue phantom containing porcine and bovine meat samples as well as grape inclusions.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"34 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":"114697174","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
Radar parameters influence on the clutter in maritime forward scatter radar 雷达参数对海上前向散射雷达杂波的影响
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991220
K. Kabakchiev, L. Daniel, M. Gashinova, E. Hoare, M. Cherniakov, V. Sizov
{"title":"Radar parameters influence on the clutter in maritime forward scatter radar","authors":"K. Kabakchiev, L. Daniel, M. Gashinova, E. Hoare, M. Cherniakov, V. Sizov","doi":"10.1109/EURAD.2014.6991220","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991220","url":null,"abstract":"The development of Forward Scatter Radar (FSR) for use in maritime applications requires a fundamental understanding of the operating environment. Presently, there is insufficiency of published experimental FSR sea clutter data at near zero grazing angle over the sea. Such data is fundamental for the development of FSR systems for maritime applications. Therefore clutter experiments have been undertaken and data has been recorded at frequencies of 7.5 GHz and 24 GHz with static, medium gain antennas for low sea state 1-3 on the Douglas scale. Analysis of forward scatter propagation phenomena is presented, and spectral and statistical analysis of forward scatter clutter is performed.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"4 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":"130010051","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
Cluster CLEAN: An application of CLEAN to LFMCW radar systems Cluster CLEAN: CLEAN在LFMCW雷达系统中的应用
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991235
T. Wagner, R. Feger, A. Stelzer
{"title":"Cluster CLEAN: An application of CLEAN to LFMCW radar systems","authors":"T. Wagner, R. Feger, A. Stelzer","doi":"10.1109/EURAD.2014.6991235","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991235","url":null,"abstract":"The CLEAN algorithm is a widespread deconvolution method which is well suited for detecting frequency components in a signal. Originally developed to deconvolve images of the sky, over the years quite a lot of variants have been published which adapt the CLEAN algorithm to the demands of several fields of engineering. In this paper, we present Cluster CLEAN as enhancement to the CLEAN algorithm and show its application to measurement data collected with a linearly frequency-modulated continuous-wave radar system.","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":"130023912","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
Impact of ADC clipping and quantization on phase-modulated 79 GHz CMOS radar ADC削波和量化对相位调制79 GHz CMOS雷达的影响
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991263
W. Van Thillo, V. Giannini, D. Guermandi, S. Brebels, A. Bourdoux
{"title":"Impact of ADC clipping and quantization on phase-modulated 79 GHz CMOS radar","authors":"W. Van Thillo, V. Giannini, D. Guermandi, S. Brebels, A. Bourdoux","doi":"10.1109/EURAD.2014.6991263","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991263","url":null,"abstract":"Wideband phase-modulated continuous wave radar offers attractive properties, but requires very high-speed analog-to-digital converters (ADCs). In order to keep power consumption of these ADCs acceptable, their resolution has to be kept as low as possible. We investigate which ADC resolution is required for a typical 79 GHz person detection scenario. The analysis is based on simulations performed with an end-to-end Matlab simulation chain, taking into account the waveform specifics, chip implementation, propagation effects, targets and environment. We conclude that in the considered scenario a 4 bit ADC is sufficient. This result shows that complete 79 GHz radar system-on-chip implementations in advanced CMOS nodes are feasible, enabling a wide array of novel applications in automotive, industrial and consumer products.","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":"131006433","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: 18
Waveform design for fast clutter cancellation in noise radars 噪声雷达中快速消杂波的波形设计
2014 11th European Radar Conference Pub Date : 2014-12-18 DOI: 10.1109/EURAD.2014.6991207
M. Meller
{"title":"Waveform design for fast clutter cancellation in noise radars","authors":"M. Meller","doi":"10.1109/EURAD.2014.6991207","DOIUrl":"https://doi.org/10.1109/EURAD.2014.6991207","url":null,"abstract":"Canceling clutter is an important, but computationally intensive part of signal processing in noise radars. It is shown that considerable improvements can be made to a simple least squares canceler if minor constraints are imposed onto noise waveform. The proposed scheme is potentially capable of canceling clutter in real-time, even for high sampling rates.","PeriodicalId":241445,"journal":{"name":"2014 11th European Radar Conference","volume":"101 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":"117277869","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
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