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Proceedings of International Radar Conference最新文献

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Absolute phase retrieval in a three-element synthetic aperture radar interferometer 三元合成孔径雷达干涉仪的绝对相位反演
Proceedings of International Radar Conference Pub Date : 1996-10-08 DOI: 10.1109/ICR.1996.574449
F. Lombardini
{"title":"Absolute phase retrieval in a three-element synthetic aperture radar interferometer","authors":"F. Lombardini","doi":"10.1109/ICR.1996.574449","DOIUrl":"https://doi.org/10.1109/ICR.1996.574449","url":null,"abstract":"We introduce a three-antenna SAR interferometer for topographic mapping and a statistically optimal technique for absolute phase (and hence terrain height) retrieval. This method involves taking advantage of the baseline diversity to obtain a non-aliased (i.e. not modulo 2/spl pi/) phase estimate. The accuracy of the new technique is compared to the basic interferometry. Simulated results show that the unambiguous phase can be determined on a pixel to pixel basis and without sacrificing the estimation accuracy, for the usual values of the system parameters. In this new framework the phase unwrapping process of conventional (modulo 2/spl pi/) two-antenna SAR interferometry can be eliminated or simplified. So, ground reference points can be no more necessary, real time processing can be performed, and phase aliasing problems in steep areas, that degrade height estimation in conventional SAR interferometry, can be eliminated. Finally this new framework may facilitate the introduction of computationally and statistically efficient 2-D estimators for smoothing or interpolation of the absolute height measures.","PeriodicalId":144063,"journal":{"name":"Proceedings of International Radar Conference","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116053814","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: 37
A novel approach for pattern synthesis of arbitrary array 一种新的任意阵列方向图合成方法
Proceedings of International Radar Conference Pub Date : 1996-10-08 DOI: 10.1109/ICR.1996.574495
Lu Yilong, Yan Keen Keong, Fu Jeffrey, Chin Leonard
{"title":"A novel approach for pattern synthesis of arbitrary array","authors":"Lu Yilong, Yan Keen Keong, Fu Jeffrey, Chin Leonard","doi":"10.1109/ICR.1996.574495","DOIUrl":"https://doi.org/10.1109/ICR.1996.574495","url":null,"abstract":"In this paper, a novel approach, based on the genetic algorithm, for pattern synthesis of an arbitrary array is presented. Unlike conventional genetic algorithms dealing with binary coding and genetic operations, this algorithm avoids coding and uses decimal operation, directly dealing with real or complex coefficients. Furthermore, constraints on the phases of the complex coefficients can be imposed for practical implementation of digital phase shifters and digital attenuators. To demonstrate the effectiveness of the approach, two examples are presented, including a curved array with mutual coupling considered.","PeriodicalId":144063,"journal":{"name":"Proceedings of International Radar Conference","volume":"234 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114915652","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
Fractal theory of sea scattering 海洋散射的分形理论
Proceedings of International Radar Conference Pub Date : 1996-10-08 DOI: 10.1109/ICR.1996.574569
F. Berizzi, E. Mese
{"title":"Fractal theory of sea scattering","authors":"F. Berizzi, E. Mese","doi":"10.1109/ICR.1996.574569","DOIUrl":"https://doi.org/10.1109/ICR.1996.574569","url":null,"abstract":"We introduce a new dynamic model of the sea surface, based on the fractal Weirstrass-Mandelbroot functions. By using this model, we give a closed form of the scattering coefficient. We show that the scattering coefficient, as a function of time, is a fractal function with the same fractal dimension of the sea surface model. This conclusion is validated by a number of numerical computations, discussed in the paper. The results of the paper can be used as a starting point to give a theoretical development to such problems as: (1) detection theory in a clutter environment by using the fractal dimension of the received signal; (2) theoretical justification of the statistical models which describe the sea clutter for high spatial resolution radar as Weibull or K-distributions; and (3) classification theory of different radar signals based on fractal parameters as the dimension and auto-affinity degree.","PeriodicalId":144063,"journal":{"name":"Proceedings of International Radar Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114646197","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
Recursive algorithm of adaptive weight extraction of space-time signal processing for airborne radars 机载雷达空时信号处理自适应权值提取递推算法
Proceedings of International Radar Conference Pub Date : 1996-10-08 DOI: 10.1109/ICR.1996.573778
Xiong Jun, Liao Guisheng, Wu Shunjun
{"title":"Recursive algorithm of adaptive weight extraction of space-time signal processing for airborne radars","authors":"Xiong Jun, Liao Guisheng, Wu Shunjun","doi":"10.1109/ICR.1996.573778","DOIUrl":"https://doi.org/10.1109/ICR.1996.573778","url":null,"abstract":"The non-stationary characteristic of clutter echoes is analyzed in the clutter circumstance of airborne early warning (AEW) radar. A newly 2-D (two dimension) space-time adaptive processing is presented, which is segmented in the range. The segmentation method is determined by analyzing the range of neighboring clutter subspaces. A recursive algorithm of adaptive weight is presented with considering the real-time implementation and the performance of the processor simultaneously. Theoretical analysis and computer simulation results show that the proposed approach is effective.","PeriodicalId":144063,"journal":{"name":"Proceedings of International Radar Conference","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127385869","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
An overview of the principles of ultra-wideband impulse radar 超宽带脉冲雷达原理综述
Proceedings of International Radar Conference Pub Date : 1996-10-08 DOI: 10.1109/ICR.1996.573764
M. Hussain
{"title":"An overview of the principles of ultra-wideband impulse radar","authors":"M. Hussain","doi":"10.1109/ICR.1996.573764","DOIUrl":"https://doi.org/10.1109/ICR.1996.573764","url":null,"abstract":"Extensive research work has been carried out to develop the ultra-wideband (UWB) technology for radar applications, and to resolve the practical challenges met in implementing an efficient UWB radar system. In this paper, we present an overview of the basic principles of a UWB impulse radar. The focus is on the principles of UWB signal generation, impulse radiation, waveform design, pulse compression, range-velocity resolution (ambiguity function), array beamforming, and radar-target signature.","PeriodicalId":144063,"journal":{"name":"Proceedings of International Radar Conference","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127558393","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
Clutter characterization based on random walks 基于随机游走的杂波表征
Proceedings of International Radar Conference Pub Date : 1996-10-08 DOI: 10.1109/ICR.1996.573796
M. Bisceglie, C. Galdi
{"title":"Clutter characterization based on random walks","authors":"M. Bisceglie, C. Galdi","doi":"10.1109/ICR.1996.573796","DOIUrl":"https://doi.org/10.1109/ICR.1996.573796","url":null,"abstract":"The compound-Gaussian processes have been successfully used in the literature for modelling the sea-clutter returns. We propose a new interpretation of the compound model as a limiting form of a discrete-time random walk with a stochastic number of steps. Since the non-Gaussian properties of the overall process are ruled by the statistics of the appearance and disappearance of the scatterers within the radar cell only, accurate models for such fluctuations are also necessary. The generalized birth and death model leads to a wide class of non-Gaussian-Markov processes which are mathematically treatable and easy to generate by pseudo-random procedures.","PeriodicalId":144063,"journal":{"name":"Proceedings of International Radar Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125253770","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
Pulse random signal radar 脉冲随机信号雷达
Proceedings of International Radar Conference Pub Date : 1996-10-08 DOI: 10.1109/ICR.1996.574519
Wang Jinshan, Liu Guo-sui
{"title":"Pulse random signal radar","authors":"Wang Jinshan, Liu Guo-sui","doi":"10.1109/ICR.1996.574519","DOIUrl":"https://doi.org/10.1109/ICR.1996.574519","url":null,"abstract":"In this paper, average ambiguity functions of a random binary phase coded coherent pulse train are given. Combining random signal radar with pulse Doppler radar, a random binary phase-coded pulse compression radar (RBPCPCR) is established with high ratio of compression, high resolution and excellent anti-jamming performance. This radar also allows medium and long range unambiguous detection of both range and velocity.","PeriodicalId":144063,"journal":{"name":"Proceedings of International Radar Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126997762","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
Radar systems and spectrum management 雷达系统和频谱管理
Proceedings of International Radar Conference Pub Date : 1996-10-08 DOI: 10.1109/ICR.1996.573772
J. Isnard
{"title":"Radar systems and spectrum management","authors":"J. Isnard","doi":"10.1109/ICR.1996.573772","DOIUrl":"https://doi.org/10.1109/ICR.1996.573772","url":null,"abstract":"The purpose of this paper is to discuss several technical aspects contributing to the radar frequency management within the whole spectrum. To this effect it is proposed to analyse the following main aspects: first, a survey of the foreseeable evolution of telecommunication and radar mainly in terms of frequency band needs, radiated power density and waveforms; secondly, we provide a comparative analysis of signals used in radar and telecommunication; finally we propose a few necessary conditions to coordinate the operation of radar within the whole spectrum.","PeriodicalId":144063,"journal":{"name":"Proceedings of International Radar Conference","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124860193","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
Results of using GPS for determination of the Earth ionosphere electronic distribution 利用GPS测定地球电离层电子分布的结果
Proceedings of International Radar Conference Pub Date : 1996-10-08 DOI: 10.1109/ICR.1996.574560
V. Andrianov, Y.L. Mosin, V. Smirnov
{"title":"Results of using GPS for determination of the Earth ionosphere electronic distribution","authors":"V. Andrianov, Y.L. Mosin, V. Smirnov","doi":"10.1109/ICR.1996.574560","DOIUrl":"https://doi.org/10.1109/ICR.1996.574560","url":null,"abstract":"A method of determination of the high-altitude ionospheric structure of the Earth is realized on the basis of experimental measurements of a range difference between dual frequency GPS observations.","PeriodicalId":144063,"journal":{"name":"Proceedings of International Radar Conference","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124867527","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
Radar target full-scale measurement and data processing 雷达目标全尺寸测量和数据处理
Proceedings of International Radar Conference Pub Date : 1996-10-08 DOI: 10.1109/ICR.1996.573786
Huang Peikang, Tao Wei, Xu Xiaojian, Feng Zhenxun
{"title":"Radar target full-scale measurement and data processing","authors":"Huang Peikang, Tao Wei, Xu Xiaojian, Feng Zhenxun","doi":"10.1109/ICR.1996.573786","DOIUrl":"https://doi.org/10.1109/ICR.1996.573786","url":null,"abstract":"Full-size measurement, scale-model measurement and mathematical prediction are widely accepted tools for radar signature data acquisition. A number of aspects for full-scale measurement and processing of radar target signatures are considered. Facilities and data processing and representation examples, including RCS measurement and modeling, wideband high resolution imaging and scattering mechanism diagnosis, and target glint study at an outdoor range, are demonstrated.","PeriodicalId":144063,"journal":{"name":"Proceedings of International Radar Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124245893","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
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