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2013 International Conference on Radar最新文献

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Dual axis multi-beam radars 双轴多波束雷达
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6652024
Annemieke Tonnaer
{"title":"Dual axis multi-beam radars","authors":"Annemieke Tonnaer","doi":"10.1109/RADAR.2013.6652024","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652024","url":null,"abstract":"The evolution in today's radar design is driven by new and highly variable naval and land-based missions encountering a great diversity of threats. The broad threat spectrum ranges from small slow moving UAVs to very small, fast and agile missiles. Detecting these targets simultaneously imposes conflicting requirements on a radar design. The great variety of missions in an increasingly complex littoral environment requires a flexible radar design with multi-mission capabilities. The system also needs to be easy upgradable, supporting modernization of the system during its operational lifetime to enable adaptation to new threats. New technologies, such as the introduction of Active Electronically Scanned Array (AESA) antenna technology, compact receiver technology and growth in processing power opens the door to the introduction of Dual Axis Multi-beam forming. By inserting this next step in digital beam forming, the great variety and often conflicting requirements imposed on a modern radar system can be dealt with, without the need for the operator to switch between multiple modes. This paper will describe the working and benefits of Dual Axis Multi-beam forming, as well as the operational advantages. The concepts are applicable for fixed and rotating antenna radars.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"307 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123274455","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
MIMO radar developments at Teledyne Australia 澳大利亚Teledyne公司的MIMO雷达发展
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651982
I. Longstaff, H. Ashoka, Troy A. Kilpatrick
{"title":"MIMO radar developments at Teledyne Australia","authors":"I. Longstaff, H. Ashoka, Troy A. Kilpatrick","doi":"10.1109/RADAR.2013.6651982","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651982","url":null,"abstract":"A small company in Brisbane working on MIMO radar systems was acquired by Teledyne Inc in Sept 2009. Continued support has allowed the development of several concept demonstrators where MIMO offers a distinct advantage. We describe two of these: a stand-off body scanner, capable of imaging and screening people whilst walking; and a Multi-Beam Radar Altimeter which captures the topography of the ground beneath a landing helicopter. The basic principles and schematics of these radars are presented together with experimental results and a summary of our experience with these radars using the MIMO technique.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123286337","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
Comparative study of microstrip patch antenna feed network 微带贴片天线馈电网络的比较研究
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651981
B. Jamali, Tony Cook
{"title":"Comparative study of microstrip patch antenna feed network","authors":"B. Jamali, Tony Cook","doi":"10.1109/RADAR.2013.6651981","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651981","url":null,"abstract":"This paper presents a comparative study of patch antenna feed structures. That includes microstrip line feed, inset feed, coaxial feed, aperture coupled feed and proximity coupled feed. Matching between the patch antenna and the feed network heavily depends on the feed technique used. In this work we review various feeding techniques to provide an understanding of the important design parameters and their effects on the bandwidth, gain and the other important antenna characteristics. Various simulation tools, commercial and internally developed are used during this work.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125091031","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: 14
A transform space filtered, wide frequency-range implementation of the parabolic equation method 一个变换空间滤波，实现宽频率范围的抛物方程方法
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6652010
S. Salamon, H. Hansen, D. Abbott
{"title":"A transform space filtered, wide frequency-range implementation of the parabolic equation method","authors":"S. Salamon, H. Hansen, D. Abbott","doi":"10.1109/RADAR.2013.6652010","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652010","url":null,"abstract":"Modelling of point-to-point radio propagation over terrain is of interest in the design of radio systems working over obstructed radio paths, or which may be subject to sub-refractive fading, or in estimating the visibility of radar targets close to terrain. Practical implementation of Fourier split-step PEM to provide accurate prediction of field-strength deep into the terrain diffraction region, over a wide frequency range, faces significant challenges. At high frequencies a large transform size is required, and at low frequencies the artificial upper boundary must be sufficiently high and the absorber layer sufficiently thick, to prevent spurious reflections from the upper boundary interfering with the weak terrain diffracted field. An adaptation to the PE method is described, and tested for the canonical problems of wedge and smooth-Earth diffraction over the frequency range of 10 MHz to 100 GHz, and compared with path measurements from 150 MHz to 1.5 GHz.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126802704","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
Transmit beampattern synthesis and performance analysis for collocated MIMO radar 并置MIMO雷达发射波束图合成及性能分析
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651983
Yunfo Liu, Zheng Liu, R. Xie, Qin Liu, Xuzi Wu
{"title":"Transmit beampattern synthesis and performance analysis for collocated MIMO radar","authors":"Yunfo Liu, Zheng Liu, R. Xie, Qin Liu, Xuzi Wu","doi":"10.1109/RADAR.2013.6651983","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651983","url":null,"abstract":"Waveform design affects the performance of target detection and parameters estimation for multiple-input multiple-output (MIMO) radar. Transmit power is assigned by designing the transmit cross-correlation matrix, which can be regarded as adjusting the correlation between antennas. An algorithm of beampattern design for MIMO radar is presented in this paper. The algorithm replaces the fixed searching length of steepest descent method with variational length without the calculation of the inverse of Hesse matrix. A numerial example is presented to demonstrate that the new algorithm is preferable to existent methods. The time-frequency-angle ambiguity function for MIMO radar is analysed to indicate the performance of the waveform.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116158492","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
Development and potential of real-time FPGA frequency-based SAR image processing for short-range FMCW applications 近程FMCW应用中基于FPGA频率的实时SAR图像处理的发展与潜力
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651968
M. Pfitzner, F. Cholewa, P. Pirsch, H. Blume
{"title":"Development and potential of real-time FPGA frequency-based SAR image processing for short-range FMCW applications","authors":"M. Pfitzner, F. Cholewa, P. Pirsch, H. Blume","doi":"10.1109/RADAR.2013.6651968","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651968","url":null,"abstract":"This paper presents the potential of standard frequency domain based SAR image generation techniques for real-time short-range FMCW applications. Exemplarily, a Range-Doppler algorithm is implemented in hardware and evaluated for a 80 GHz, 25 GHz bandwidth FMCW system. For implementation a hardware-in-the-loop framework is presented, capable of coupling high-level MATLAB code with different hardware evaluation environments. This allows for a gradual swap of time-critical signal processing tasks from software to hardware. The stepwise swap makes a precise analysis of discrete algorithmic stages possible, leading to an optimized hardware description. A dramatic increase of computation speed can be observed compared to time domain based image generation techniques.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129694492","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
Low-angle target detection with interference in a multipath environment 多径环境下具有干扰的低角度目标检测
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6652029
P. Berry, Daniel P. Finch
{"title":"Low-angle target detection with interference in a multipath environment","authors":"P. Berry, Daniel P. Finch","doi":"10.1109/RADAR.2013.6652029","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652029","url":null,"abstract":"Returned radar signals and interference at low elevation angles may be subject to multipaths with both specular and diffuse reflections. For a multichannel phased array radar, space/time filtering techniques may be utilized to enhance the signal to interference ratio for improved target detection. This relies upon a combination of temporal decorrelation and spatial separation and exploits the presence of multipaths to both cancel the interference as well as reinforce the target signal.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122503943","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
Simulation of correlated Pareto distributed sea clutter 相关Pareto分布海杂波仿真
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651995
S. Bocquet
{"title":"Simulation of correlated Pareto distributed sea clutter","authors":"S. Bocquet","doi":"10.1109/RADAR.2013.6651995","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651995","url":null,"abstract":"The memoryless nonlinear transformation method is used to simulate Pareto distributed sea clutter with a specified correlation function for the clutter power. The Pareto distribution is formed from a compound model with a negative exponential distribution for the speckle intensity and an inverse gamma distribution for the clutter power. An estimator based on the expectation value of z log z is obtained for the Pareto shape parameter, which has comparable accuracy to the maximum likelihood estimator and the advantage of also being applicable to the compound gamma distribution which arises for multiple looks.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133710429","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: 19
Sea clutter and radar complex targets 海杂波和雷达复杂目标
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651951
A. Khenchaf
{"title":"Sea clutter and radar complex targets","authors":"A. Khenchaf","doi":"10.1109/RADAR.2013.6651951","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651951","url":null,"abstract":"The study, analysis and mastery of sea clutter has become indispensable in many different applications (oceanography, communications, telecommunications, maritime surveillance, detection, monitoring and classification of targets, target recognition,...), so it is one of the major themes addressed by the scientists working in different areas of the radar field. The work presented in this paper fits well in this context of study. Thus, it focuses on the presentation of different methods and techniques for the electromagnetic or statistical characterization of sea clutter (alone or in the presence of breaking waves or objects). In different geometric configurations of observation (monostatic, forward propagation, bistatic and especially for grazing angles), various simulation results are presented (especially in X and Ku bands) to evaluate different models and methods in comparison with available real data.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132902567","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
The effects of covariance matrix mismatch on adaptive CFAR performance 协方差矩阵失配对自适应CFAR性能的影响
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6652007
S. Watts
{"title":"The effects of covariance matrix mismatch on adaptive CFAR performance","authors":"S. Watts","doi":"10.1109/RADAR.2013.6652007","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652007","url":null,"abstract":"This paper analyses the CFAR performance of the Normalised Adaptive Matched Filter (NAMF) when the estimate of the covariance matrix used to design the filter does not match the clutter in the cell under test. The analysis results are compared with simulations and the potential effects on practical detectors are investigated using a recently developed model for the non-stationary Doppler spectra of sea clutter.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133570568","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: 16
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