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2013 International Conference on Radar最新文献

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Passive radar processing with quantised signals 量化信号被动雷达处理
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6652000
S. Searle, J. Palmer
{"title":"Passive radar processing with quantised signals","authors":"S. Searle, J. Palmer","doi":"10.1109/RADAR.2013.6652000","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652000","url":null,"abstract":"A recent study suggested that passive radar processing could be performed adequately using data which had been digitised using fewer bits per sample than are typical of an analogue-to-digital converter (ADC). It is known that passive radar output is improved by preprocessing both surveillance and reference channels. This study examines how quantisation of a real data set affects the ability of preprocessing to improve passive radar output, using metrics based on radar ambiguity surfaces to quantify performance. It is found that the benefits of preprocessing are achieved at quantisation levels well below the original level of the ADC.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"29 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":"130032840","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
Feasibility of resolution-enhanced burst-mode interferometry in bistatic SAR 双基地SAR中分辨率增强爆发模干涉测量的可行性
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651955
V. Kubica, X. Neyt
{"title":"Feasibility of resolution-enhanced burst-mode interferometry in bistatic SAR","authors":"V. Kubica, X. Neyt","doi":"10.1109/RADAR.2013.6651955","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651955","url":null,"abstract":"Opportunistic SAR interferometry using a groundbased receiver and a spaceborne transmitter has previously been addressed. However, the analysis is limited to the conventional Stripmap mode of such radar satellites. The occurrence of satellite passes in Stripmap high-resolution mode is however not as frequent as passes in ScanSAR mode, hence the motivation to exploit ScanSAR mode illuminations by opportunistic receiver. In ScanSAR mode imaging, a burst-mode resolution enhancement method has been developed to enhance the cross-range resolution performance by exploiting the sidelobe emissions of the beams illuminating the adjacent sub-swaths. In this paper, the impact of this method on the interferometric performance is evaluated in the novel application of bistatic interferometry using cross-range resolution-enhanced burst-mode images.","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":"130505880","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
A ship detection system for RADARSAT-2 dual-pol multi-look imagery implemented in the ADSS 在ADSS中实现的RADARSAT-2双极多视图像船舶检测系统
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6652006
D. Crisp
{"title":"A ship detection system for RADARSAT-2 dual-pol multi-look imagery implemented in the ADSS","authors":"D. Crisp","doi":"10.1109/RADAR.2013.6652006","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652006","url":null,"abstract":"A ship detection system for use with RADARSAT-2 dual-polarisation multi-look imagery is described. The system is built using the Defence Science & Technology Organisation's (DSTO) automated target detection software system known as the Analysts' Detection Support System (ADSS). The ADSS is flexible and allows the combination of many different modules in parallel as well as sequential pipelines. This paper discusses a particular system implemented in the ADSS to detect ships in RADARSAT-2 ScanSAR Narrow dual-polarisation imagery. The imagery has been well ground-truthed and detection performance is presented in the form of ROC curves. A particular aspect of the problem that is considered in detail is how best to combine the HH and HV polarisation channels in the pre-screening stage.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"9 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":"126300401","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: 31
CURACAO SAR/GMTI compact radar cube concept 库拉索岛SAR/GMTI紧凑型雷达立方体概念
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651964
R. Baqué, P. Dreuillet, B. Vaizan
{"title":"CURACAO SAR/GMTI compact radar cube concept","authors":"R. Baqué, P. Dreuillet, B. Vaizan","doi":"10.1109/RADAR.2013.6651964","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651964","url":null,"abstract":"CURACAO is a compact X-band Active Electronically Scanned Array (AESA) system able to work in SAR and/or GMTI modes. The advantage of a multi-mode compact size radar with low power consumption and lightweight design is the possibility to implement it on small manned or unmanned platforms with limited payloads capability. This allows fast and low cost deployment of the system to areas of interest. We describe in this paper the architecture and design of CURACAO.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"38 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":"124359299","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 study of performances of multipath height estimation algorithm for marine target imaging 舰船目标成像中多径高度估计算法的性能研究
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651958
J. Habonneau, J. Le Caillec, A. Khenchaf, L. Mandridake
{"title":"A study of performances of multipath height estimation algorithm for marine target imaging","authors":"J. Habonneau, J. Le Caillec, A. Khenchaf, L. Mandridake","doi":"10.1109/RADAR.2013.6651958","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651958","url":null,"abstract":"In this paper, a new method is proposed to retrieve target reflectors heights for maritime surveillance applications. Multipath propagation over sea surface is used to retrieve the height information for each target reflectors. Firstly, radar raw data with multipath propagation are simulated. The back-scattered electric field from a marine scene is predicted with physical models for the environment and the target. The scene is made of given wind conditions, a linear sea surface and a boat, as a set of point reflectors. Multipath propagation is included with the so-called Four-Path Model. Secondly, height estimation of target reflectors is realized by estimating temporal delays between neighbouring paths of the multipath propagation pattern. Performances of the height estimation algorithm for only one reflector are studied with regards to noise levels.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"43 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":"122416961","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
Performance improvements using the separated reference configuration for a multi-static FM broadcast band radar system 使用多静态调频广播波段雷达系统的分离参考配置的性能改进
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651989
C. Tong, M. Inggs, F. Maasdorp
{"title":"Performance improvements using the separated reference configuration for a multi-static FM broadcast band radar system","authors":"C. Tong, M. Inggs, F. Maasdorp","doi":"10.1109/RADAR.2013.6651989","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651989","url":null,"abstract":"A Commensal Radar (CR) uses the transmissions from radiators to detect and track targets. Since there is no requirement for dedicated spectrum allocation, Commensal Radars are gaining interest as an alternative to conventional, monostatic, active radar for applications such as air traffic control. Moves by governments to charge for spectrum usage is a growing concern for operators. Commensal radars have, until recently, been crippled by direct signal interference, limiting dynamic range [1]. Traditionally the CR system will produce bistatic detections by recording the reference and surveillance channels together at the same site with a multi-channel receiver. The multi-channel receiver ensures relative phase stability and inherent synchronicity between the 2 channels for the purpose of cross-correlation, to recover time delay and Doppler shift of the target(s). This configuration makes it difficult to use site selection to reduce the interference in the surveillance channel (e.g. by means of terrain shielding) as the reference antenna always needs to have Line of Site (LoS) to the illuminator. The “Separated Reference” [2] configuration was thus developed to allow the reference and surveillance antennas to be placed at widely separated sites (10s to 100s of km). Each receiver is equipped with a Global Navigation Satellite Systems (GNSS) stabilised oscillator to maintain relative channel synchronicity and provide accurate time stamping to allow the combing of many bistatic baselines. The separated reference configuration allows each antenna's location to be optimised purely for the detection function. This paper reports on some of the results and performance improvements obtained with field testing the separated reference configuration, beyond what was initially published [2].","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"42 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":"123999085","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
Manifold learning methods for wide-angle SAR ATR 广角SAR ATR的流形学习方法
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6652039
Emre Ertin
{"title":"Manifold learning methods for wide-angle SAR ATR","authors":"Emre Ertin","doi":"10.1109/RADAR.2013.6652039","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652039","url":null,"abstract":"The automatic recognition and characterization of civilian vehicles in urban setting is motivated by an increasingly difficult class of surveillance and security challenges. These new ATR (Automatic Target Recognition) problems are motivated by new data collection capabilities, in which airborne synthetic aperture radar (SAR) systems are able to interrogate a scene, such as a city, persistently and over a large range of aspect angles. Learning and exploiting the additional information provided by wide-aspect signatures is key to developing successful algorithms. In this paper, we study manifold learning methods to learn informative projections of the feature space for ATR algorithm design, which is also amenable to performance prediction and analysis.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"18 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":"115425335","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
FPGA implementation of back projection algorithm for radar imaging 雷达成像反投影算法的FPGA实现
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6651967
Nieves Crasto, T. Kumar, D. Anuradha, P. Barua, Sirisha Nemani
{"title":"FPGA implementation of back projection algorithm for radar imaging","authors":"Nieves Crasto, T. Kumar, D. Anuradha, P. Barua, Sirisha Nemani","doi":"10.1109/RADAR.2013.6651967","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6651967","url":null,"abstract":"The growing security concerns worldwide have lead to the development of wideband radar systems to estimate the position and shape of objects behind barriers. For an accurate reconstruction of the scene of interest, a huge amount of measurements are required. Thus wideband signals with large array apertures are required to generate high resolution images. This paper describes how the raw data is processed using back-projection algorithm in order to reconstruct a 2-D image with the help of FPGA. It also deals with the practical advantages of back projection algorithm compared to other beamforming algorithms. The raw data is generated using stepped frequency continuous wave radar.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"34 1 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":"115751030","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
Radar considered as a fine art 雷达被认为是一门艺术
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6652046
A. Stove
{"title":"Radar considered as a fine art","authors":"A. Stove","doi":"10.1109/RADAR.2013.6652046","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652046","url":null,"abstract":"This paper argues that radar research is in many cases becoming a separate discipline from the development of the technologies used to design and manufacture radars. It argues that it is better that this separation is recognised for what it is rather than pretending it does not exist. Instead, it argues that this separation can be the stimulus for developing new ways of assessing radar designs which although not directly related to a customer's explicit requirements, may yet lead to the design of better radars in the longer term.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"3 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":"130829245","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
Dauphin: A new statistical signal processing language 一种新的统计信号处理语言
2013 International Conference on Radar Pub Date : 2013-11-04 DOI: 10.1109/RADAR.2013.6652033
R. Kyprianou, Bill Moran, P. Schachte
{"title":"Dauphin: A new statistical signal processing language","authors":"R. Kyprianou, Bill Moran, P. Schachte","doi":"10.1109/RADAR.2013.6652033","DOIUrl":"https://doi.org/10.1109/RADAR.2013.6652033","url":null,"abstract":"Many software packages support scientific research by means of numerical calculations and specialised library calls, but very few support specific application domains such as signal processing at the symbolic level or at problem formulation. Translation from the natural domain-specific structure of problem description to the computer formulation is often a time consuming and error-prone exercise. As signal processing becomes more sophisticated, there is a need to codify its basic tools, thus allowing the researcher to spend more time on the challenges specific to a particular application. In this paper, we describe the design of Dauphin, a domain-specific programming language. Dauphin ultimately aims to extend the power of signal processing researchers by allowing them to focus on their research problems while simplifying the process of implementing their ideas. In Dauphin, the basic algorithms of signal processing become the standard function calls and are expressed naturally in terms of predefined signal processing primitives such as random variables and probability distributions.","PeriodicalId":365285,"journal":{"name":"2013 International Conference on Radar","volume":"22 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":"125286061","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
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