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2006 International Radar Symposium最新文献

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Temporal Variation of the Refractive Index in Coastal Waters 沿海水域折射率的时间变化
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338040
R. Norland
{"title":"Temporal Variation of the Refractive Index in Coastal Waters","authors":"R. Norland","doi":"10.1109/IRS.2006.4338040","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338040","url":null,"abstract":"Sensors that are dependent on transmission of electromagnetic waves are often subject to anomalous propagation, especially in coastal maritime areas. This anomalous electromagnetic wave propagation can be a problem for radars because the variation of the refractive index can induce loss of radar coverage. The anomalous propagation is due to the variations of the humidity, temperature and pressure that cause variations in the refractive index. The paper presents short time variation of the refractive index over line-of-sight paths of approximately 3 km in mountainous coastal waters using X-band.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"471 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123449603","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
Trade-Off between Motion Measurement Accuracy and Autofocus Capabilities in Airborne SAR Motion Compensation 机载SAR运动补偿中运动测量精度与自动对焦能力的权衡
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4337999
P. Decroix, X. Neyt, M. Acheroy
{"title":"Trade-Off between Motion Measurement Accuracy and Autofocus Capabilities in Airborne SAR Motion Compensation","authors":"P. Decroix, X. Neyt, M. Acheroy","doi":"10.1109/IRS.2006.4337999","DOIUrl":"https://doi.org/10.1109/IRS.2006.4337999","url":null,"abstract":"When processing airborne SAR data, motion compensation is an unavoidable step. Accurate motion compensation requires the knowledge of the exact position of the platform at each pulse. This paper studies the trade-off between two approaches. The first approach is to get the most accurate position estimation as possible to be able to perform the motion compensation with correct input data. The second approach is to accept a less accurate position estimation and to analyze in which way an autofocus algorithm is able to compensate position measurement errors.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124927668","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
Target Feature Extraction in Fully Polarimetric High Range Resolution Radar 全极化高分辨雷达目标特征提取
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338096
L. Cantini, F. Berizzi, M. Martorella, D. Calugi
{"title":"Target Feature Extraction in Fully Polarimetric High Range Resolution Radar","authors":"L. Cantini, F. Berizzi, M. Martorella, D. Calugi","doi":"10.1109/IRS.2006.4338096","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338096","url":null,"abstract":"In this paper, the authors propose a technique for polarimetric feature extraction from radar range profiles. The technique, which is based on super-resolution algorithms, proves effective when applied to simulated data via an E.M. simulator, namely the EMvironment.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121073171","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
Subsurface Investigations by MARSIS in Mars Express Mission 火星快车任务中MARSIS的地下调查
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338150
G. Picardi, D. Biccaria, M. Cartacci, A. Cicchetti, M. Iorio, R. Seu, A. Masdea, J. Plaut, R. Jordan, R. Huff, A. Safaenili, R. Orosei, O. Bombaci, D. Calabrese, E. Zampolini, P. T. Melacci
{"title":"Subsurface Investigations by MARSIS in Mars Express Mission","authors":"G. Picardi, D. Biccaria, M. Cartacci, A. Cicchetti, M. Iorio, R. Seu, A. Masdea, J. Plaut, R. Jordan, R. Huff, A. Safaenili, R. Orosei, O. Bombaci, D. Calabrese, E. Zampolini, P. T. Melacci","doi":"10.1109/IRS.2006.4338150","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338150","url":null,"abstract":"The analysis of the surface return echoes in the subsurface data extraction in North Mars Polar region has shown the possibility to utilize simplified surface models, at least, for the purpose of the evaluation of the penetration depth capability. The surface simulation, obtained starting from MOLA data, has been utilized during the planning activity in order to select the MARSIS operative sequence in order to optimize the amount of scientific data taking into account the data rate available and the scientific target to be investigated during the next part of the mission. Moreover a simulator, still in progress, utilizing the surface characteristics will perform the analysis of the real data in order to make available the required information expected, by the mission, in terms of detection and identification of dielectric constant on the surface and subsurface.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125648794","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
The FDTD Simulating the Attenuation of a Plan Electromagnetic Wave Crossing of a Radome in the Weather Radar 时域有限差分法模拟天气雷达天线罩平面电磁波穿越衰减
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338152
E. Saraiva, M. Souza, H. T. Filho, W. A. Junior, C. A. Benetti, C. Dartora
{"title":"The FDTD Simulating the Attenuation of a Plan Electromagnetic Wave Crossing of a Radome in the Weather Radar","authors":"E. Saraiva, M. Souza, H. T. Filho, W. A. Junior, C. A. Benetti, C. Dartora","doi":"10.1109/IRS.2006.4338152","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338152","url":null,"abstract":"This article presents the results of simulations in plan electromagnetic waves (EMW) horizontally polarized propagate through the radome of protection in a Weather) Radar antenna, using the method of Finite Difference in Time Domain (FDTD). Creating a limited computerized space with focus in the best answers in operational equipment frequency at 2.8GHz. Simulations the same plan EMW at open space (Air); crosses a radome composed of Goretex®; crosses a radome covered by a thin water rain layer plate, and also a crosses a junction of plates of radome containing one stainless steel screw used for joint the plates. Comparing the results for each one simulations and knowing the attenuation of radiated (EMW) by the Weather Radar.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129329794","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
The frequency domain method of velocity factor measurement in transmission line 传输线速度因子的频域测量方法
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338151
L. Januszkiewicz
{"title":"The frequency domain method of velocity factor measurement in transmission line","authors":"L. Januszkiewicz","doi":"10.1109/IRS.2006.4338151","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338151","url":null,"abstract":"The following paper presents the frequency domain method of the velocity factor measurement in transmission line. The method is based on phase analysis of the cable sample in the desired frequency band. The paper presents formulas used for calculations and the measurement results obtained for example cable samples.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129359063","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
New Possibilities and Challenges for Imaging Radar 成像雷达的新可能性和挑战
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4337996
J. Ender
{"title":"New Possibilities and Challenges for Imaging Radar","authors":"J. Ender","doi":"10.1109/IRS.2006.4337996","DOIUrl":"https://doi.org/10.1109/IRS.2006.4337996","url":null,"abstract":"In 1984, a forward-looking paper by Dale Ausherman was titled: \"Developments in Radar Imaging\". Now, 22 years later, we have not reached the end of these developments: new technological possibilities and new insights into the nature of radar imaging allow exciting novel techniques and applications. The digital revolution today bestows a much larger flexibility to use radar in a smart manner: programmable and reconfigurable. Multi-channel and multi-sensor data acquisition together with electronical beam steering make possible extremely involved engineering ideas. On the other hand, these new possibilities implicate new challenges, e.g. they force to establish new processing techniques, highly accurate calibration and motion measurements. In this paper, we will touch some new possibilities opened in the last few years and the challenges connected to them.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130948522","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
Passive Radar using Multiple GSM Transmitting Stations 使用多个GSM发射站的无源雷达
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338045
U.M.D. Mendi, B. K. Sarkar
{"title":"Passive Radar using Multiple GSM Transmitting Stations","authors":"U.M.D. Mendi, B. K. Sarkar","doi":"10.1109/IRS.2006.4338045","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338045","url":null,"abstract":"The atmosphere has a wide range of transmissions available from various sources like TV transmissions, GSM signals, FM Radio, AM Radio, GPS signals, etc. These signals open up the opportunity of designing different types of passive radars. Passive radar using a single GSM transmitting station have been designed, but this type of radar cannot give accurate target parameters. This paper suggests a passive radar using signals from multiple GSM base stations to provide better accuracy of target parameters.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121850911","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
Fast-time STAP Performance in pre and post Range Processing Adaption as applied to Multichannel SAR 多通道SAR前、后距离处理自适应的快速STAP性能
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338136
L. Rosenberg, M. Trinkle, D. Gray
{"title":"Fast-time STAP Performance in pre and post Range Processing Adaption as applied to Multichannel SAR","authors":"L. Rosenberg, M. Trinkle, D. Gray","doi":"10.1109/IRS.2006.4338136","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338136","url":null,"abstract":"Hot-clutter cancellation using fast-time space time adaptive processing (STAP) can occur either pre or post range processing (RP) and to date, there has not been a direct comparison on which method offers the best results. This paper provides an analytic comparison which is verified with simulation and aims to provide insight into the location of the adaptive filter which would provide the best hot-clutter suppression. The covariance models are tested with signal models used in a multichannel synthetic aperture radar (SAR).","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122446753","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
Performances of a DTOA estimation algorithm based on Cross-Correlation Technique 一种基于互相关技术的DTOA估计算法的性能
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338032
R. Ardoino, F. Capriati, A. Zaccaron
{"title":"Performances of a DTOA estimation algorithm based on Cross-Correlation Technique","authors":"R. Ardoino, F. Capriati, A. Zaccaron","doi":"10.1109/IRS.2006.4338032","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338032","url":null,"abstract":"Estimation of Time Delay is a fundamental topic in a variety of Applications. When no reference signal is available, as in the case of Passive Radars and Electronic Warfare (EW) Receivers, the Time Delay is estimated as Difference in Time Of Arrival (DTOA) between signals arriving at two different channels of the same Receiver (Rx). The present work summarizes theoretical, simulated and measured results of a DTOA Estimator based on Cross-Correlation Technique.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133727621","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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