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2013 International Conference on Radar最新文献

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A narrow band imaging technique for passive radar 无源雷达窄带成像技术
2013 International Conference on Radar Pub Date : 2013-09-01 DOI: 10.1109/RADAR.2013.6651997
J. Garry, C. Baker, G. E. Smith, R. Ewing
{"title":"A narrow band imaging technique for passive radar","authors":"J. Garry, C. Baker, G. E. Smith, R. Ewing","doi":"10.1109/RADAR.2013.6651997","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651997","url":null,"abstract":"In this paper we report on initial results into Doppler imaging, a technique by which both down and cross-range resolution are obtained with low bandwidth waveforms. Conventional radar imaging utilizes aperture synthesis to obtain cross-range resolution and relies on wideband waveforms for the downrange resolution. More recently, tomography has been proposed an alternative able to generate high-resolution imagery but without necessarily requiring wideband waveforms. Here we introduce the theory behind a third alternative, Doppler imaging and consider how it might be applied to passive bistatic radar. We present results that include the 2D image of two point targets separated by just 0.6 m illuminated using a pure tone signal in an anechoic chamber. The resolution limits using the technique are also shown, using a Fourier domain representation.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126409950","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
Preliminary analysis of monostatic and bistatic Doppler signature of small maritime target 海上小型目标单、双基地多普勒信号初步分析
2013 International Conference on Radar Pub Date : 2013-09-01 DOI: 10.1109/RADAR.2013.6652038
W. Al-Ashwal, H. Griffiths
{"title":"Preliminary analysis of monostatic and bistatic Doppler signature of small maritime target","authors":"W. Al-Ashwal, H. Griffiths","doi":"10.1109/RADAR.2013.6652038","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652038","url":null,"abstract":"The simultaneous bistatic and monostatic Doppler signatures of a small boat are measured and analyzed. The data was recorded using the UCL NetRAD 2.4 GHz netted radar system. Two datasets are presented: one at small bistatic angle (~ 4°) and the other at a larger angle (~ 91°). There was little difference between the monostatic and bistatic channels in the former, while there were significant differences in the latter. In addition, by using detections from both channels the true velocity of the target is estimated.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131944001","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
Over-the-horizon radar continuous-wave interference suppression using harmonic least-squares fitting 谐波最小二乘拟合的超视距雷达连续波干扰抑制
2013 International Conference on Radar Pub Date : 2013-09-01 DOI: 10.1109/RADAR.2013.6651969
D. Holdsworth
{"title":"Over-the-horizon radar continuous-wave interference suppression using harmonic least-squares fitting","authors":"D. Holdsworth","doi":"10.1109/RADAR.2013.6651969","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651969","url":null,"abstract":"High Frequency (HF) skywave over-the-horizon (OTH) radar is routinely affected by radio frequency interference (RFI) from natural sources (e.g. lightning), and transmissions from other users, such as continuous-wave (CW) signals. Although adaptive processing effectively mitigates interference and noise, it can impact negatively upon target detection in some cases. This paper describes a simple filtering technique, harmonic least-squares fitting (HLSF), which has potential for application throughout the OTH radar signal processing chain. In this paper we illustrate HLSF application for clutter suppression, transient detection, and CW interference suppression. In each instance HLSF application demonstrates advantages over commonly used techniques.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124514865","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
Target state estimation using RCS characteristics for 26GHz short-range vehicular radar 基于RCS特性的26GHz近程车载雷达目标状态估计
2013 International Conference on Radar Pub Date : 2013-09-01 DOI: 10.1109/RADAR.2013.6652003
I. Matsunami, Nakamura Ryohei, A. Kajiwara
{"title":"Target state estimation using RCS characteristics for 26GHz short-range vehicular radar","authors":"I. Matsunami, Nakamura Ryohei, A. Kajiwara","doi":"10.1109/RADAR.2013.6652003","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652003","url":null,"abstract":"In the traffic accidents in intersection at night, the probability of dying is 2.9 times higher than at daytime. Therefore, the wide area monitoring using by all-weather radar to the reduction of traffic accidents is essential regardless of day or night. In this paper, we study on the state estimation of a moving radar target in intersection environment by 26GHz automotive radar.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132827003","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
Application of a new sea clutter Doppler model 一种新的海杂波多普勒模式的应用
2013 International Conference on Radar Pub Date : 2013-09-01 DOI: 10.1109/RADAR.2013.6652049
M. Ritchie, A. Stove, S. Watts, K. Woodbridge, H. Griffiths
{"title":"Application of a new sea clutter Doppler model","authors":"M. Ritchie, A. Stove, S. Watts, K. Woodbridge, H. Griffiths","doi":"10.1109/RADAR.2013.6652049","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652049","url":null,"abstract":"This paper applies a recently developed sea clutter Doppler simulation model to five sets of data selected from the CSIR 2007 sea clutter database. Each dataset is characterised using the parameters required for the new simulation model. These parameters are then compared between datasets, before the model is then used to generate spectra for each dataset. The effectiveness of the model is discussed and evaluated through comparing the statistics of the simulated data to the real data. It is shown that the fit is suitable for modelling of clutter characteristics that can then be used to understand likely detection performance in a radar. A linear relationship is also shown between two of the parameters used, which shows that it might be possible to reduce these to a single independent parameter.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128217739","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: 23
A background extraction technique for polarimetric RCS measurement 偏振RCS测量的背景提取技术
2013 International Conference on Radar Pub Date : 2013-09-01 DOI: 10.1109/RADAR.2013.6652020
Xiaojian Xu, Shuangsuo Sun
{"title":"A background extraction technique for polarimetric RCS measurement","authors":"Xiaojian Xu, Shuangsuo Sun","doi":"10.1109/RADAR.2013.6652020","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652020","url":null,"abstract":"Background clutter is one of the major factors which degrade the accuracy in radar cross section (RCS) measurement. In this paper, a novel technique is proposed for simultaneous polarimetric background clutter extraction and target polarimetric scattering matrix (PSM) calibration is proposed. The technique deploys the fact that for any polarimetric channel, if the returned signals of a dihedral rotating around the radar line of sight (LOS) are sampled over an integer multiple of 180° rotation, the mathematic expectation of the dihedral signal samples as a function of the rotating angle is equal to zero. Numerical simulation demonstrates the excellent performance of the proposed technique.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133262865","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
Analysis of the azimuth resolution of bistatic SAR 双基地SAR的方位分辨率分析
2013 International Conference on Radar Pub Date : 2013-09-01 DOI: 10.1109/RADAR.2013.6652023
Bo Zhao, Xueru Bai, Feng Zhou, Zi-jing Zhang, Z. Bao
{"title":"Analysis of the azimuth resolution of bistatic SAR","authors":"Bo Zhao, Xueru Bai, Feng Zhou, Zi-jing Zhang, Z. Bao","doi":"10.1109/RADAR.2013.6652023","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652023","url":null,"abstract":"Because many factors affect the azimuth resolution of bistatic SAR, it is a complex problem to design a proper bistatic configuration to achieve good resolution. This poster analyzes each key parameter that affects the azimuth resolution by keeping the others constant in the spatial invariant case. Then, simulation results are presented to validate the theoretical analysis. Finally, a method for bistatic geometry designing is proposed and several examples are presented.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"229 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123062760","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
Experimental RCS acquisition system: Using software defined radio to build a classification dataset 实验RCS采集系统:利用软件无线电建立分类数据集
2013 International Conference on Radar Pub Date : 2013-09-01 DOI: 10.1109/RADAR.2013.6652035
S. Azarian, J. Pisane, M. Lesturgie
{"title":"Experimental RCS acquisition system: Using software defined radio to build a classification dataset","authors":"S. Azarian, J. Pisane, M. Lesturgie","doi":"10.1109/RADAR.2013.6652035","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652035","url":null,"abstract":"One of the major issues in testing Automatic Target Recognition (ATR) systems lies in having a sufficient amount of trusted data to be able to estimate efficiency and reliability of the developed algorithms. Generally synthetic data is used because real world data is not easy to obtain or too expensive for academic research. This paper describes an original low-cost automatic acquisition system designed to build a database of RCS acquired with real planes (airliners), in bistatic configuration, at low frequency (VHF). The described system uses ADS-B for target position and a network connected set of Software Defined Radio (SDR) receivers for RF processing. This setup was used to build a RCS database of 1300 commercial airliners in less than two weeks close to Paris-Orly international airport. The web-based graphical user interface was used over this time to remotely monitor the system and make demonstrations.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120957667","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
Digital RF processing system for Hardware-in-the-Loop simulation 硬件在环仿真数字射频处理系统
2013 International Conference on Radar Pub Date : 2013-09-01 DOI: 10.1109/RADAR.2013.6652048
SA Piyaratna, Ninh T. Duong, Joel Carr, D. Bird, S. Kennedy, A. Udina, Patrick Jenkinson
{"title":"Digital RF processing system for Hardware-in-the-Loop simulation","authors":"SA Piyaratna, Ninh T. Duong, Joel Carr, D. Bird, S. Kennedy, A. Udina, Patrick Jenkinson","doi":"10.1109/RADAR.2013.6652048","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652048","url":null,"abstract":"This paper presents the design of the Digital RF Processing (DRFP) system for generating many of the RF effects within the Advanced Radar Environment Simulator (ARES) Hardware-in-the-Loop system developed within the Hardware-in-the-Loop Technology and Simulation Group (HTS) of Weapons Systems Division (WSD), DSTO. This system is based on Digital RF Memory (DRFM) technology. The DRFM signal processing is performed on a digitised signal on a commercial-off-the-shelf (COTS) Field Programmable Gate Array (FPGA) hardware board. The RF Up/Down conversion is performed by a COTS RF module. The RF up/down converter translates an 800MHz instantaneous band in range 2-18 GHz down to 500 MHz IF signal (100 - 900 MHz). The ARES Digital RF Processor (DRFP) provides the technique designer with a set of tools to model a number of environmental effects, such as Doppler, Range Delay, intra-pulse complex modulations, and multi-point convolutions. The ARES DRFP provides a real-time communication link to receive high fidelity generic environmental parameters which are computed by a numerical model of the radar environment. This feature provides the technique designer with significant flexibility compared to other typical Radar/RF scene generators. This paper discusses the implementation details and the design strategies of the development. Preliminary results of the ARES DRFP output are also discussed.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128298087","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
Decametric measurements of the ISS using an experimental HF line-of-sight radar 使用试验性高频视距雷达对国际空间站进行十分制测量
2013 International Conference on Radar Pub Date : 2013-09-01 DOI: 10.1109/RADAR.2013.6651980
G. Frazer, D. Meehan, G. Warne
{"title":"Decametric measurements of the ISS using an experimental HF line-of-sight radar","authors":"G. Frazer, D. Meehan, G. Warne","doi":"10.1109/RADAR.2013.6651980","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651980","url":null,"abstract":"A DSTO developed high-frequency line-of-sight radar operating at a wavelength of approximately one decametre has been used to make radar measurements of the International Space Station. The radar is described and ISS detection considered. Measurements from the radar are used to estimate the maximum radar cross section of the ISS and to compute an improved ephemeris for the orbit of the ISS compared to the NORAD published ephemeris used as an initial estimate. The accuracy of the orbit determination and the wider suitability of this sensor design for measuring low-Earth orbiting object trajectories are discussed.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128648712","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
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