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2013 International Conference on Radar最新文献

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Wind farm interferences in Passive Coherent Location 无源相干定位中的风电场干扰
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651961
J. Kulpa, M. Bączyk, A. Kurowská, S. Rzewuski
{"title":"Wind farm interferences in Passive Coherent Location","authors":"J. Kulpa, M. Bączyk, A. Kurowská, S. Rzewuski","doi":"10.1109/RADAR.2013.6651961","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651961","url":null,"abstract":"Rapid growth in the number of wind farms may influence the performance of many radar systems. The radar echoes originating from wind turbine's blades and tower may mask existing objects or generate false plots. In the presented paper the authors analyze the influence of a wind turbine on Passive Coherent Location radars and discuss the effectiveness of simple methods used to overcome problems associated with it. The results of a simulation along with the recorded echoes of the wind turbine gathered by DVB-T based passive radar demonstrator are also shown in the paper.","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":"124311599","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: 7
Clutter property analysis and clutter suppression for Hypersonic airborne radar 高超声速机载雷达杂波特性分析与杂波抑制
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6652016
Zheng Liu, Yi Chen, R. Xie, Lei Zhang
{"title":"Clutter property analysis and clutter suppression for Hypersonic airborne radar","authors":"Zheng Liu, Yi Chen, R. Xie, Lei Zhang","doi":"10.1109/RADAR.2013.6652016","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652016","url":null,"abstract":"Clutter property of a forward-looking array radar on Hypersonic Vehicle is analyzed and a method for clutter suppression using multi-stage space-time adaptive processing (STAP) is proposed. This method employs the elevation degree of freedom of the planar array to extract various range ambiguous clutter. Then range-unambiguous non-stationary clutter is compensated by using Doppler Warping (DW) algorithm, and finally STAP in azimuth-Doppler domain is used to suppress the residual clutter. Simulation results are given to demonstrate the validity of the presented method.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"14 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":"117299757","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
Some issues in the development of metric surveillance radar 米制监视雷达研制中的若干问题
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651950
Wu Jian-qi, Xu Jin
{"title":"Some issues in the development of metric surveillance radar","authors":"Wu Jian-qi, Xu Jin","doi":"10.1109/RADAR.2013.6651950","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651950","url":null,"abstract":"Because of its low detection accuracy, inaccurate height-finding, and discontinuous airspace coverage, the meter-wave radar has been replaced by common microwave radar progressively in the development course of radar. However, for the threat from stealth aircraft, the meter-wave radar has unique frequency-band advantage. Combined with the research work of many years, the author makes an introduction to the methods for solving the major drawbacks existing in the traditional meter-wave radar by use of the meter-wave synthetic impulse and aperture radar (SIAR) and the super-resolution processing. The research and experiment results indicate that these drawbacks can be overcome effectively. The meter-wave radar will have a good development perspective.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"14 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":"129796076","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 Reed-Müller coded complementary waveforms to target tracking reed - mller编码互补波形在目标跟踪中的应用
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651976
S. Suvorova, S. Howard, B. Moran
{"title":"Application of Reed-Müller coded complementary waveforms to target tracking","authors":"S. Suvorova, S. Howard, B. Moran","doi":"10.1109/RADAR.2013.6651976","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651976","url":null,"abstract":"Intolerance to Doppler is a typical rationale for non-implementation of complementary waveforms in radar systems. However, it is known that by careful scheduling of the waveforms this problem can effectively be overcome[1]. This paper extends the ideas [2] for significantly improving Doppler performance in specific Doppler ranges by arranging the transmission of multiple copies of the complementary waveforms according to the pattern of first order Reed-Müller codes. Here we illustrate the scheduling of these sequences of complementary waveforms in the context of tracking. We provide both a theoretical analysis of the Doppler response of waveform sequences constructed in this way and for this application, and computer simulations of a scheduling algorithm which deliveries superior performance for the tracking of an accelerating target.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"54 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":"121025238","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
Bandwidth extrapolation of LFM signals for Narrowband Radar Systems 窄带雷达系统LFM信号的带宽外推
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651975
V. Nguyen, M. Turley
{"title":"Bandwidth extrapolation of LFM signals for Narrowband Radar Systems","authors":"V. Nguyen, M. Turley","doi":"10.1109/RADAR.2013.6651975","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651975","url":null,"abstract":"In this paper, we address the problem of improving range resolution in narrowband radar systems. By using linear frequency modulation (LFM) waveform, we propose a method of achieving range resolution improvement through extrapolating the bandwidth of the LFM waveform after it has been radiated by the transmitter and reflected back from targets and clutter to the receiver of a radar system. The proposed method is based on using linear prediction to extend the target frequency response into spectral regions outside of the measured band. There are two key differences between the proposed technique and an existing bandwidth extrapolation technique designed for wideband radar systems. Firstly, it uses correlation rather than stretch processing to obtain the range profile. This has the advantage of allowing the range depth of interest to be as large as the radar unambiguous distance, which is commonly required in narrowband radar systems. Secondly, the bandwidth extrapolation process is carried out after Doppler processing, which allows the proposed technique to work effectively even in the presence of strong stationary or slow moving clutter. We evaluate the performance of the proposed method using real data collected from an over-the-horizon radar system. We have shown that the proposed technique is capable of improving the range resolution in the presence of stationary clutter that is 20 - 50 dB stronger than the targets. In addition to range resolution improvement, we have observed that the proposed bandwidth extrapolation technique also improves the signal to noise ratio of the targets.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"53 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":"127563946","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
Detection and characterization of MIMO radar signals MIMO雷达信号的检测与表征
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6652008
S. Howard, S. Sirianunpiboon, D. Cochran
{"title":"Detection and characterization of MIMO radar signals","authors":"S. Howard, S. Sirianunpiboon, D. Cochran","doi":"10.1109/RADAR.2013.6652008","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652008","url":null,"abstract":"Motivated by electronic surveillance applications, this paper considers the problems of detecting the presence of and characterizing a radar transmitter using data collected at a spatially distributed suite of receivers. A characterization of particular interest is determining the rank of the transmitted signal, which enables discrimination between MIMO and conventional radar transmitters as well as distinguishing between MIMO systems that simultaneously emit different numbers of linearly independent signals from their transmit arrays. Bayesian detectors are derived and their performance is demonstrated in simulations. Generalized likelihood ratio tests are also derived and some drawbacks they manifest in this setting are noted.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"20 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":"131555438","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
Phase difference estimation based on orthogonal signals for distributed coherent aperture radar 基于正交信号的分布式相干孔径雷达相位差估计
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651986
Xiaopeng Yang, Pilei Yin, T. Zeng, T. Long
{"title":"Phase difference estimation based on orthogonal signals for distributed coherent aperture radar","authors":"Xiaopeng Yang, Pilei Yin, T. Zeng, T. Long","doi":"10.1109/RADAR.2013.6651986","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651986","url":null,"abstract":"In distributed coherent aperture radar which is a new technology to replace traditional large aperture radars for next generation radar, all transmitted signals of unit radars should arrive at target at the same time and with the same phase so that the energy of all unit radars could be combined coherently. Therefore, the estimation of phase difference between signals at target is a key issue. In this paper, an estimation method of phase difference for distributed coherent aperture radar is proposed based on orthogonal signals. The mathematical model of phase difference is developed at first. And then, the estimation method of phase difference based on orthogonal signals is presented. In order to improve the estimation accuracy of phase difference, an improved design of orthogonal signals based on modified cost function is proposed. At last, simulations are carried out to illustrate the effectiveness of proposed method.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"8 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":"125041697","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
GPS bistatic radar using phased-array technique for aircraft detection GPS双基地雷达采用相控阵技术进行飞机探测
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651998
C. Pui, M. Trinkle
{"title":"GPS bistatic radar using phased-array technique for aircraft detection","authors":"C. Pui, M. Trinkle","doi":"10.1109/RADAR.2013.6651998","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651998","url":null,"abstract":"A study has been made into using a 32-elements phased-array receiver to detect the echo of GPS signals from a moving target. This paper mainly proposes the methods that improve the performance of GPS bistatic radar with phased-array receiver and allow it to properly perform aircraft detection. Among these methods are antenna array phase error calibration, array gain optimization and interference signal cancellation technique. Also, the detection technique of using PRN codes that are directly acquired by phased-array receiver is also proposed in this paper to search for the correlation of GPS signals.","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":"121400247","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
Analysis of the limit to superresolution in real aperture scanning radar 真孔径扫描雷达超分辨极限分析
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6652022
Yin Zhang, Yulin Huang, Jianyu Yang
{"title":"Analysis of the limit to superresolution in real aperture scanning radar","authors":"Yin Zhang, Yulin Huang, Jianyu Yang","doi":"10.1109/RADAR.2013.6652022","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652022","url":null,"abstract":"Iterative deconvolution is an effective method of achieving high azimuth resolution in real aperture scanning radar. However, the performance is seriously limited when SNR is low. The application area and processing efficiency are affected by unreasonable iterative. Therefore, correct understanding the ability of super-resolution signal recovery is the premise to achieve super-resolution at low SNR. In this paper, the distance and position change of the recovered signals in high-dimension are studied based on the vector decomposition of azimuth echo. Besides, the process of signal recovery and the limit of super-resolution performance in iteration are analyzed. The experiential formula of the super-resolution limit is then derived. Finally, simulations are given to verify the theoretical analysis.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"110 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":"122617728","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
Classification of wave breaking mechanisms from their polarimetric radar signatures 从极化雷达特征分类破波机制
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651963
J. Morris, S. Anderson
{"title":"Classification of wave breaking mechanisms from their polarimetric radar signatures","authors":"J. Morris, S. Anderson","doi":"10.1109/RADAR.2013.6651963","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651963","url":null,"abstract":"While it is usually convenient and invariably simpler to model the ocean surface as a simply-connected, single-valued function, the intrinsic nonlinearity of surface hydrodynamics results in a class of events, collectively termed wave breaking, in which either or both of these assumptions are invalid. Many geophysical processes are dependent on the details of these events, including bubble generation, chemical exchange between atmosphere and ocean, acoustic noise generation, momentum transfer and surface wave development. It is therefore of interest to establish whether different forms of wave breaking can be distinguished by their radar signatures. We demonstrate in this paper that high resolution polarimetric radar echo analysis can reveal characteristic structural features which may lead to a viable classification scheme.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"25 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":"127274497","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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