2015 IEEE Radar Conference最新文献

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A comparative cepstral based analysis of simulated and measured S-band and X-band radar Doppler spectra of human motion 人体运动的s波段和x波段雷达多普勒频谱的模拟和测量的比较倒谱分析
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411895
W. D. van Eeden, J. D. de Villiers, W. Nel, K. Kloke, Erik Blasch
{"title":"A comparative cepstral based analysis of simulated and measured S-band and X-band radar Doppler spectra of human motion","authors":"W. D. van Eeden, J. D. de Villiers, W. Nel, K. Kloke, Erik Blasch","doi":"10.1109/RADARCONF.2015.7411895","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411895","url":null,"abstract":"A Simulation for human Doppler response is developed based on the Carnegie Mellon University motion capture database. This data is used to simulate human Doppler response as it would be seen by a radar system and this data is compared to measured radar data in S- and X- band. Cepstrum analysis is then used to evaluate the features of each time frame and the synthetic data is compared to measured data. It is shown that motion capture data can be used to simulate the Doppler response of human targets. It is also shown that, whereas the motion of most body parts of a human target can be observed in the X-band data, only the main torso sway can be observed at S-band. This implies that X-band data is well suited to cepstrum based human motion classification, whereas S-band is not ideal. However there are some discriminative features that could be extracted from the S-band data of the main body sway of running and walking individuals. Finally, the statistical differences between cepstrum coefficients of the data of walking and running individuals are highlighted, indicating their discriminative significance.","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":"129618815","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
Maximum likelihood (ML) based localization algorithm for multi-static passive radar using range-only measurements 基于最大似然(ML)的多静态无源雷达测距定位算法
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411876
Mubashir Alam, K. Jamil
{"title":"Maximum likelihood (ML) based localization algorithm for multi-static passive radar using range-only measurements","authors":"Mubashir Alam, K. Jamil","doi":"10.1109/RADARCONF.2015.7411876","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411876","url":null,"abstract":"Passive radar has been finding increasing application and use in last decade. Passive radar uses the \"opportunistic\" commercial signals for their operation. The passive radar does provide good Doppler resolution but suffer from bad range resolution. One way to improve the range resolution is to use passive radar in a multi-static fashion. By using the data collected at various multi-static sites, the range resolution can be improved. Therefore, there is a need for an algorithm for target localization using these multi-static measurements. Typically, these algorithms use range-only measurements. Various multi-static configurations are possible in passive radar setup. However, this paper will only consider the setup with single receiver, and multiple spatially distributed transmitter locations. Localization algorithm based on Maximum likelihood (ML) estimate will be presented, along with its efficient implementation using gradient and Newton's decent algorithms. The performance bounds for ML estimate in terms of Fisher information are also given. All the algorithms are verified using simulated data in 2D settings.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"103 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":"128149005","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
Monitoring structures with FastGBSAR 用FastGBSAR监测结构
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411923
S. Placidi, A. Meta, L. Testa, S. Rodelsperger
{"title":"Monitoring structures with FastGBSAR","authors":"S. Placidi, A. Meta, L. Testa, S. Rodelsperger","doi":"10.1109/RADARCONF.2015.7411923","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411923","url":null,"abstract":"Monitoring ground deformation and structural movements is an important task in order to prevent hazardous and harmful situations for the population. MetaSensing's FastGBSAR (Fast Ground-Based Synthetic Aperture Radar) is a novel sensor system, which allows the monitoring of deformation and vibration of natural and man-made structures. It is a radar sensor based on the FM-CW (Frequency Modulated Continuous Wave) technology and it is available in different configurations depending on the application: single polarization, interferometric or polarimetric configuration. It can operate in Real Aperture Radar or Synthetic Aperture Radar mode allowing the monitoring of vibration or deformation of structures respectively. This paper describes three examples of application of the FastGBSAR to different sites in China providing examples of its usage for monitoring a dam, a railway bridge and an instable slope.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"14 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":"127898816","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: 10
Poly-phase coded waveform design with expanded mainlobe width 扩展主瓣宽度的多相编码波形设计
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411848
Huikai Zang, Shenghua Zhou, Qiang Li, Hongwei Liu, Hong-xian Wang, Yunhe Cao
{"title":"Poly-phase coded waveform design with expanded mainlobe width","authors":"Huikai Zang, Shenghua Zhou, Qiang Li, Hongwei Liu, Hong-xian Wang, Yunhe Cao","doi":"10.1109/RADARCONF.2015.7411848","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411848","url":null,"abstract":"Poly-phase coded waveform design with low sidelobe level is an important issue. The sidelobe level of a poly-phase coded waveform achieved by a waveform design algorithm often depends on the degrees of freedom available for optimization. In this paper, we introduce a concept to exploit more degrees of freedom for a given pulse time duration, by allowing for more codes inside whereas keeping a low range resolution. Based on this concept, a waveform design criterion, which is a minimax optimization problem, is proposed. The optimization problem is solved by the least-pth algorithm which uses the L-BFGS as its sub-algorithm. Numerical results show that the additional degrees of freedom can decrease the peak sidelobe level of polyphase coded waveform from -32.6dB for 64 codes to -37.0dB for 256 codes with the same range resolution and pulse width.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"230 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":"115750932","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
High sensitivity fixed tuned direct conversion receiver for FM band commensal radar 调频共频雷达用高灵敏度固定调谐直接转换接收机
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411875
M. Inggs, R. Geschke, J. Coetser, D. O’Hagan
{"title":"High sensitivity fixed tuned direct conversion receiver for FM band commensal radar","authors":"M. Inggs, R. Geschke, J. Coetser, D. O’Hagan","doi":"10.1109/RADARCONF.2015.7411875","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411875","url":null,"abstract":"Growing congestion of the EM Spectrum is pushing radar operators and regulators to consider sensors based on the Commensal form of Passive Radar i.e. using broadcast and data transmissions, to provide illumination for target detection by a receive only function. Our interest in the FM Broadcast Band (88 to 108 MHz) for utilisation in the Developing World to assist Air Traffic Management (ATM) requires low cost solutions. To this end, we have examined fixed tuned, direct conversion receivers. Commensal Radar (CR) relies on cross correlating the uncooperative transmitter signal (reference) with a signal that contains Doppler shifted versions of the reference, due to motion of the targets, as well as clutter. The target echo signal power is 60 to more than 100 dB lower than that of the reference signal, and any other spurious signals that might be generated in the receiver will reduce overall system sensitivity. A direct sampling receiver, while appealing in terms of system cost, must be carefully designed to preserve dynamic range. This paper recognises that a fixed frequency receiver system is suitable for a CR used for the ATM function, and this means that ultra narrowband filters using piezo-electric technology are very suitable to ensure spectral purity of each frequency utilised. In this paper, we demonstrate the operation of such a system, after showing where the major contributions to spurious signals originate, and how the narrowband filter improves receiver performance. This is done by means of theory, simulation and measurement, including field trials with aircraft detection at bistatic ranges of more than 300 km.","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":"127703004","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
Practical implementation of a 16-channel C-band phased array radar receiver 实际实现了一个16通道c波段相控阵雷达接收机
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411856
M. Ash, M. A. Tanha, P. Brennan, A. Kohlert, J. McElwaine, C. Keylock
{"title":"Practical implementation of a 16-channel C-band phased array radar receiver","authors":"M. Ash, M. A. Tanha, P. Brennan, A. Kohlert, J. McElwaine, C. Keylock","doi":"10.1109/RADARCONF.2015.7411856","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411856","url":null,"abstract":"This paper presents the practical implementation of a 16 channel, C-band FMCW radar phased array receiver developed for the purpose of imaging flowing avalanches. The phased array is designed for a 30° field of view to give full coverage of an avalanche track. A fully populated, uniform linear array design is achieved using overlapping sub-arrays of 2A spacing, and with 16 elements, the beamwidth of the array is 1.6°. The phased array is arranged on a three layer PCB that is split into four panels due to its large physical width (1.95 m). The array is mounted on plastic pillars screwed to an aluminium base in a watertight radome to provide mechanical strength. Radio absorbent material between the PCB's and the aluminium base prevent back lobe reflections. A continuous ground across the PCB panels is maintained using grounded copper sheet bridges. Initial laboratory measurements of the phased array show that its performance agrees well with predictions.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"31 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":"129826912","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
Analysis of maritime X-band velocity SAR imagery 海上x波段速度SAR图像分析
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411866
L. Rosenberg, M. Sletten
{"title":"Analysis of maritime X-band velocity SAR imagery","authors":"L. Rosenberg, M. Sletten","doi":"10.1109/RADARCONF.2015.7411866","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411866","url":null,"abstract":"The velocity synthetic aperture radar (VSAR) algorithm separates the radial velocity components present in a SAR image. These velocity images can be recombined to form an image with the corrected motion or further exploited for the purpose of target detection. The Naval Research Laboratory Multi Aperture Synthetic Aperture Radar (NRL MSAR) is an X-band airborne test bed designed to investigate remote sensing and surveillance applications that exploit multiple along-track phase centers, in particular, applications that require measurement of scene motion. During its inaugural deployment in September 2014, a large amount of maritime data was collected at the mouth of the Chesapeake Bay and out into the Atlantic Ocean. This paper examines SAR imagery of two boats which have been corrected with VSAR processing and then investigates the statistics of the associated VSAR sea-clutter.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"149 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":"128574482","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
Fast track initiation followed by confirmation based on amplitude information 快速通道起始,然后根据振幅信息进行确认
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411885
Hongliang Liu, Tao Li, Xiaodong Dan, Hong-xian Wang, Shenghua Zhou, Hongzhi Liu
{"title":"Fast track initiation followed by confirmation based on amplitude information","authors":"Hongliang Liu, Tao Li, Xiaodong Dan, Hong-xian Wang, Shenghua Zhou, Hongzhi Liu","doi":"10.1109/RADARCONF.2015.7411885","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411885","url":null,"abstract":"In traditional radar systems, track initiation is usually performed by applying a high detection threshold at each scan, to guarantee a low false track rate. Decreasing the detection threshold will improve the track initiation performance, but will also result in more false tracks unexpectedly. In order to improve the target track initiation performance and keep a low false track rate at the same time, we study fast track initiation followed by confirmation based on amplitude information (test statistic). Explicitly, the track initiation process would firstly apply a lower detection threshold for a higher probability of target track initiation, and then based on the amplitude information, a track confirmation process is employed to eliminate false tracks. Numerical results indicate that, owing to the lower detection threshold, the track initiation process can achieve a much higher probability of target track initiation and confirmation, while a low false track rate can be achieved after the track confirmation process.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"25 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":"126986801","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
Impact of radar cross section on HF radar survelance area: Simulation approach 雷达截面积对高频雷达监视面积的影响:仿真方法
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411910
Nikola Lekić, D. Nikolić, Bojan Milanović, Dijana Vucicevic, A. Valjarević, B. Todorović
{"title":"Impact of radar cross section on HF radar survelance area: Simulation approach","authors":"Nikola Lekić, D. Nikolić, Bojan Milanović, Dijana Vucicevic, A. Valjarević, B. Todorović","doi":"10.1109/RADARCONF.2015.7411910","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411910","url":null,"abstract":"High frequency over the horizon radars (HF OTHR) shows great potential for over the horizon surveillance in Exclusive Economic Zones. When analyzing the possibilities of vessel detection it is necessary to know radar cross section. In this paper, the modeling of the vessel is accomplished by using the software for electromagnetic modeling WIPL-D. Usage of radar cross section diagram in HF OTHR simulator enables simulation of detection results that match real life situation in which vessel is tracked.","PeriodicalId":267194,"journal":{"name":"2015 IEEE Radar Conference","volume":"125 25 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":"114559168","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 passive bistatic radar experiment for very low radar cross-section target detection 极低雷达截面积目标探测的被动双基地雷达实验
2015 IEEE Radar Conference Pub Date : 2015-10-01 DOI: 10.1109/RADARCONF.2015.7411917
Abdulrazaq Aldowesh, M. Shoaib, K. Jamil, S. Alhumaidi, Mubashir Alam
{"title":"A passive bistatic radar experiment for very low radar cross-section target detection","authors":"Abdulrazaq Aldowesh, M. Shoaib, K. Jamil, S. Alhumaidi, Mubashir Alam","doi":"10.1109/RADARCONF.2015.7411917","DOIUrl":"https://doi.org/10.1109/RADARCONF.2015.7411917","url":null,"abstract":"Conventional mono-static defense radars have difficulty detecting low radar cross-section (L-RCS) targets, specifically small unmanned air vehicles (UAV) due to their radar cross-section and flight altitude. Passive bi-static radar (PBR) systems promise to improve the coverage of conventional surveillance radars by detecting and tracking the L-RCS targets. So far there are no experimental results in the literature for the detection of small UAVs using PBR. This paper presents for the first time the results of field trials for detecting a small UAV (average RCS) using a software defined multi-band multi-beam passive radar. Due to remoteness of the area of experiment the GSM signal of opportunity was generated using an own transmitter. The power of transmit signal was kept to 23dBm to have a realistic scenario.","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":"123369529","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: 12
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