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2015 IEEE Radar Conference最新文献

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Enumeration of highly-correlated radar targets with eigenbeam-space post-Doppler CFAR 基于特征波束空间后多普勒CFAR的高相关雷达目标枚举
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411890
R. Takahashi, T. Inaba, Toru Takahashi, Hirohisa Tasaki
{"title":"Enumeration of highly-correlated radar targets with eigenbeam-space post-Doppler CFAR","authors":"R. Takahashi, T. Inaba, Toru Takahashi, Hirohisa Tasaki","doi":"10.1109/RADARCONF.2015.7411890","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411890","url":null,"abstract":"Enumeration method for highly-correlated or coherent radar targets containing in Doppler bin of interest is proposed. The proposed method uses adaptive threshold to detect targets in beamspace and post-Doppler domain to improve probability of correct target enumeration in lower SNR (Signal to Noise power Ratio) with respect to MDL (Minimum Description Length). Threshold in the proposed method is controlled to maintain the user-specified probability of false enumeration. Moreover the proposed method has ability to enumerate target number equal to number of spatial channel. By computer simulation, the proposed method achieved 0.623 of probability of correct enumeration for two highly-correlated mainbeam targets of respective SNR = 20 dB impinging on four subarray linear antenna while MDL achieved 0.09 of the probability. Furthremore the proposed method achieved 0.609 of probability of correct enumeration in the same scenario but two subarray linear antenna whereas MDL is unable to enumerate target number due to exceeding the number of degrees-of-freedom (DOF) of the array antenna.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123199480","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
Performance limitations of active cancellers for FMCW radars FMCW雷达有源抵消器的性能限制
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411898
P. Van Der Walt, A. Stofberg, J. B. de Swardt
{"title":"Performance limitations of active cancellers for FMCW radars","authors":"P. Van Der Walt, A. Stofberg, J. B. de Swardt","doi":"10.1109/RADARCONF.2015.7411898","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411898","url":null,"abstract":"Active cancellers have long been proposed to alleviate the problem of strong nearby reflections that can saturate the front-end of the receiver in an FMCW radar. In this paper the general properties and the problem of setting an active canceller to work are discussed and the dynamic range improvement that can be achieved when an active canceller using modern MMIC components is added to an existing radar is determined. It is found that the long range detection performance and dynamic range of a radar is always degraded with the addition of an active canceller and that the attainable improvement in dynamic range for nearby targets is minimal. Taking into account the complexity and subtleties of active cancellers, the addition of an active canceller should be carefully considered. Time and money may well be better spent by increasing the dynamic range of the receiver front end instead.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126970424","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
Comparison of the recorded RCS and spectra of three different wind turbines on L- and S-band 三种不同风力发电机在L波段和s波段记录的RCS和频谱的比较
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411892
H. D. de Wind, K. Kloke, U. Boniger, H. Pratisto
{"title":"Comparison of the recorded RCS and spectra of three different wind turbines on L- and S-band","authors":"H. D. de Wind, K. Kloke, U. Boniger, H. Pratisto","doi":"10.1109/RADARCONF.2015.7411892","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411892","url":null,"abstract":"Renewable energy sources, of which wind energy is one of the main sources, are increasingly being preferred over fossil fuels. Megawatts of power can be generated by a single wind turbine, but unfortunately these large rotating structures pose a challenge when coexistence in the surveillance volume of civilian and military radar systems is required. This is due to the very large static RCS from the turbine tower and nacelle and the significant Doppler spread of the echoes from the moving blades. This paper presents the results from a measurement campaign that investigated the observed radar cross section (RCS) on L- and S-band on both VV and HH polarizations from a variety of aspect angles and turbine rotation rates. As expected, the results indicate that the RCS and spectrum is different for different aspect angles and different turbine rotation rates. The results also indicate significant differences in the echoes from turbines from different manufacturers. The turbine model should therefore also be taken into consideration during radar performance modelling.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125684414","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
Doppler-aided track initiation algorithm 多普勒辅助航迹起始算法
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411886
Hongliang Liu, Xiaodong Dan, Hong-xian Wang, Shenghua Zhou, Hongzhi Liu, Tao Li
{"title":"Doppler-aided track initiation algorithm","authors":"Hongliang Liu, Xiaodong Dan, Hong-xian Wang, Shenghua Zhou, Hongzhi Liu, Tao Li","doi":"10.1109/RADARCONF.2015.7411886","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411886","url":null,"abstract":"For traditional track initiation algorithms, target tracks are usually initiated using position measurements. However, many radar systems can also provide Doppler measurements. In this paper, we study how to perform track initiation based on position measurements plus Doppler measurements. Due to the fact that target radial velocity usually does not change too much at the track initiation stage, it is reasonable to assume that a target will appear at the same Doppler channel. With this concept, we construct radial range constraint based on Doppler measurement and spatial location constraint based on a maximum velocity, and select validated measurements at the same Doppler channel of a given track head. Numerical results indicate that the proposed algorithm can decrease the false track probability and the average false track number to a large extent. Besides, compared with the traditional sequential track initiation strategy, a better track initiation performance can be obtained at the same false track level.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131799980","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
Analysis of multiband monostatic and bistatic radar signatures of wind turbines 风电机组多波段单、双基地雷达特征分析
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411894
F. Fioranelli, M. Ritchie, H. Griffiths, A. Balleri
{"title":"Analysis of multiband monostatic and bistatic radar signatures of wind turbines","authors":"F. Fioranelli, M. Ritchie, H. Griffiths, A. Balleri","doi":"10.1109/RADARCONF.2015.7411894","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411894","url":null,"abstract":"Wind farm clutter can negatively affect Air Traffic Control and air defence radar systems by obscuring true targets and by generating non-stationary clutter which increases the probability of false alarm. Bistatic and multistatic radar may mitigate these effects thanks to reduced clutter radar cross section and Doppler spread with respect to conventional monostatic systems. This paper presents the results of recent measurements taken with two radar systems to measure the simultaneous monostatic and bistatic signature of wind turbines, at S-band and X-band. This initial analysis shows the bistatic Doppler signature of wind turbines and investigates the main differences seen at modest bistatic angles. Polarimetric variations are also analysed using co-polarised VV and HH and cross-polarised VH data.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125226787","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: 8
Two-dimensional wavenumbers analysis of one-stationary bistatic circular SAR 单平稳双基地圆形SAR的二维波数分析
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411908
Hongtu Xie, D. An, Xiaotao Huang, Zhimin Zhou
{"title":"Two-dimensional wavenumbers analysis of one-stationary bistatic circular SAR","authors":"Hongtu Xie, D. An, Xiaotao Huang, Zhimin Zhou","doi":"10.1109/RADARCONF.2015.7411908","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411908","url":null,"abstract":"Compared with the traditional one-stationary bistatic linear synthetic aperture radar (SAR), the coupling between two-dimensional (2D) wavenumbers for the one-stationary bistatic circular SAR (OS-BCSAR) is much larger due to the circular trajectory and 360° integration angle of the moving radar with respect to the scene, which may affect the behavior of the impulse response in OS-BCSAR imaging. In this paper, 2D wavenumbers of the target echo data for the OS-BCSAR are analyzed. First, the geometry of the OS-BCSAR is built, and then 2D wavenumbers of the target echo data are derived. Besides, the effect of the 2D wavenumber domain support on the impulse response in the OS-BCSAR imaging is discussed, which can provide a basis for the OS-BCSAR imaging. Finally, simulation results are shown to prove the correctness of the analysis of the 2D wavenumbers.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131012779","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
Further results from a 4.5GSps digital to analog converter capable of direct microwave synthesis of radar signal up to X band 进一步的结果从4.5GSps数模转换器能够直接微波合成雷达信号到X波段
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411900
A. Glascott-Jones, M. Wingender, F. Bore, M. Stackler, N. Chantier, K. Salmi, P. Coquille, M. Martin, V. Monier, G. Wagner, E. Savasta
{"title":"Further results from a 4.5GSps digital to analog converter capable of direct microwave synthesis of radar signal up to X band","authors":"A. Glascott-Jones, M. Wingender, F. Bore, M. Stackler, N. Chantier, K. Salmi, P. Coquille, M. Martin, V. Monier, G. Wagner, E. Savasta","doi":"10.1109/RADARCONF.2015.7411900","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411900","url":null,"abstract":"The ability of the new generation of Digital to Analog Converter (DAC)s to convert from a digital signal directly into high frequency bands can be seen as a large leap in capability allowing greater system flexibility, reduction in component footprint and power consumption. This paper presents a new high speed, high bandwidth Digital to Analog Converter with high sample rate and high output bandwidth which enables the direct conversion of signals to frequencies up to band X. The component features a number of innovative design features which enable the optimization of performance in the different Nyquist zones. These include various output shaping schemes and interface methods. Results will be presented which show the performance of the circuit at output frequencies greater than 8GHz. The component's performance can result in highly flexible and waveform agile Radar signal generation systems.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133792881","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
Adaptive monopulse estimation in mainlobe jamming for non-rectangular planar arrays 非矩形平面阵列主瓣干扰中的自适应单脉冲估计
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411931
Xinzhu Chen, Ting Shu, Fei Huang, Z. Tan, Wenxian Yu
{"title":"Adaptive monopulse estimation in mainlobe jamming for non-rectangular planar arrays","authors":"Xinzhu Chen, Ting Shu, Fei Huang, Z. Tan, Wenxian Yu","doi":"10.1109/RADARCONF.2015.7411931","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411931","url":null,"abstract":"Four-channel beams are formed simultaneously in a typical adaptive digital beamforming (ADBF) architecture to cancel mainlobe jamming and maintain monopulse angle estimation accuracy. For large antenna arrays, good performance can also be obtained by performing digital beamforming at sub-array outputs. For non-rectangular array configuration, however, the accuracy of monopulse angle estimation decreases so that the performance of the typical ADBF severely degrades. In this paper, a novel adaptive beamforming architecture is proposed for non-rectangular planar arrays. First, linear compensation is applied to the four-channel beam outputs, and the compensation factor is determined directly from the array configuration. Then, with the scaled monopulse ratio lookup tables, the two-dimensional angles of the target are estimated respectively. Simulation result of a practical phased-array configuration are used to validate the effectiveness of the new method.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"255 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114858879","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
Distributed detection with initial thresholds in local sensors 局部传感器中具有初始阈值的分布式检测
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411888
Shenghua Zhou, Yidi Chen, Hongwei Liu, Qinzhen Hu, Ding Cao, Leilei Xu
{"title":"Distributed detection with initial thresholds in local sensors","authors":"Shenghua Zhou, Yidi Chen, Hongwei Liu, Qinzhen Hu, Ding Cao, Leilei Xu","doi":"10.1109/RADARCONF.2015.7411888","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411888","url":null,"abstract":"For distributed multiple-input multiple-output (MIMO) radar, signal fusion based detection algorithms can significantly improve the target detection performance, but it may demand a high communication cost. In order to reduce the communication cost with a tiny loss in detection performance, this paper studies a distributed radar detection scheme that would set initial thresholds at local radar sites before transmitting local observations to a signal fusion center. The mechanism to make final decision is given and the probability of false alarm rate is formulated.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121439426","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
Orthogonal matching pursuit and matched filter techniques for the imaging of rotating blades 旋转叶片成像的正交匹配追踪与匹配滤波技术
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411844
R. Melino, S. Kodituwakku, H. Tran
{"title":"Orthogonal matching pursuit and matched filter techniques for the imaging of rotating blades","authors":"R. Melino, S. Kodituwakku, H. Tran","doi":"10.1109/RADARCONF.2015.7411844","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411844","url":null,"abstract":"We report on a novel technique for the imaging of fast rotating blades such as those of a helicopter rotor, based on Orthogonal Matching Pursuit (OMP) technique and matched j filtering, as well as the use of a tilted-wire scatterer model, rather ; than the traditional point scatterer model. Parameters of the model atoms may also provide new efficient metrics for automatic target classification of targets with fast rotating blades.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124020809","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
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