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2006 International Radar Symposium最新文献

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Experimental study on human being detection using UWB radar 超宽带雷达探测人体的实验研究
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338133
A. Nezirovic, A. Yarovoy, L. Ligthart
{"title":"Experimental study on human being detection using UWB radar","authors":"A. Nezirovic, A. Yarovoy, L. Ligthart","doi":"10.1109/IRS.2006.4338133","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338133","url":null,"abstract":"In this paper we are evaluating the feasibility of using an UWB radar as a victim search device in emergency situations. The idea of human being detection using UWB radar is to observe periodic differences in time-of-arrival of scattered pulses from the victim, which are result of periodic movements of the chest area of the victim. This motion cannot be assumed to be uniform in all directions. We therefore investigate how the breathing motion, and thus detectability, of the human body for different angles of incidence and position of the body. The observed results show that the breathing motion in sitting position is most pronounced for body facing the radar, becomes less pronounced for 45° orientation only to become barely observable for 90° and 180°. For 45° and 90° one could observe periodic movement of the arm closer to the radar and that the arm attenuates the scattered signal from the lung. The horizontal positions of the body did not show any periodic movements, except for the case of front of the body facing the radar. Vertical co-polarization produced roughly the same results as horizontal one, whereas cross-polarization did not produce any output. It was observed that the breathing motion is proportional to an absolute value of a sinusoidal signal with its frequency being the breathing frequency.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"14 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":"114727541","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
SNR Considerations for RF Sampling Receivers for Phased Array Radars 相控阵雷达射频采样接收机的信噪比考虑
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338020
M. Trinkle
{"title":"SNR Considerations for RF Sampling Receivers for Phased Array Radars","authors":"M. Trinkle","doi":"10.1109/IRS.2006.4338020","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338020","url":null,"abstract":"This paper considers the implementation of a digital receiver suitable for a Transmit/Receive (T/R) module in phased array radars. In particular, the achievable SNR performance of an L-band RF sub-sampling receiver will be investigated as a function of the Analogue to Digital Converter (ADC) sample rate. The SNR is measured per unit bandwidth, as it is assumed that the ADC is followed by a digital filter which limits the spectrum to the desired signal bandwidth. The SNR performance of a direct RF sub-sampling receiver is also compared against a single-conversion receiver using a mixer stage prior to ADC conversion.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"45 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":"128319849","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 Multiband Passive Radar Demonstrator 多波段无源雷达演示器
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338144
Dale Gould, R. Pollard, C. Sarno, Paul Tittensor
{"title":"A Multiband Passive Radar Demonstrator","authors":"Dale Gould, R. Pollard, C. Sarno, Paul Tittensor","doi":"10.1109/IRS.2006.4338144","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338144","url":null,"abstract":"Passive radar systems that exploit signals from the plethora of RF emissions that exist in the external environment offer a number of advantages over conventional active radar system, including procurement and operational cost saving. Each emitter has its own characteristics, including waveforms, which dictate system performance. BAE Systems Advanced Technology Centre has designed and built a demonstrator system to act as a test bed for passive sensor research. The system operates over a multi-octave bandwidth and can exploit both analogue and digital transmissions from both broadcast and communication systems. This offers advantages over single band systems; for example, multiple observations in different bands using different geometries allow fusion of tracks to achieve more robust and accurate tracks. This paper outlines the system and design issues that were addressed during the development of the demonstrator, including the simulation model, and prediction of bistatic target signature. Results of experimental work illustrating the operation of the demonstrator system with targets of opportunity are shown.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"13 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":"128407255","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: 16
Distribution Independent CFAR Detector Using Extreme Value Theory 基于极值理论的分布无关CFAR探测器
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338005
M. Piotrkowski
{"title":"Distribution Independent CFAR Detector Using Extreme Value Theory","authors":"M. Piotrkowski","doi":"10.1109/IRS.2006.4338005","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338005","url":null,"abstract":"According to the extreme value theory, the tail distribution of virtually any statistical distribution can be uniquely modeled by the generalized Pareto distribution. Based on this property, a CFAR detector making no assumption about the distribution of interference is proposed. The parameters of the generalized Pareto distribution can be estimated using the method of L-moments. The performance of the new detector is compared to CA- and Optimized Weibull CFAR detector in the Rayleigh, Weibull and lognormally distributed clutter amplitude.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"18 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":"128524710","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
Performance Analysis of Permutation and Rank Tests under K-Distributed Clutter in Radar Detection 雷达探测中k分布杂波下排列和秩检验的性能分析
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338109
J. Sanz-González, F. Álvarez-Vaquero, J. E. González-García
{"title":"Performance Analysis of Permutation and Rank Tests under K-Distributed Clutter in Radar Detection","authors":"J. Sanz-González, F. Álvarez-Vaquero, J. E. González-García","doi":"10.1109/IRS.2006.4338109","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338109","url":null,"abstract":"In this paper, we analyze the performance of some nonparametric detectors (permutation and rank tests) against the parametric ones. The detector performance analysis was realized by Monte-Carlo simulations, having considered the ideal case of independent and identically distributed (IID) samples of K-distributed clutter, and nonfluctuating and Swerling II target models. The results are shown in curves of detection probability (Pj) versus signal-to-clutter ratio (SCR). Also, we have to point out that both permutation and rank detectors are constant false-alarm rate (CFAR) detectors under IID clutter samples.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"3 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":"128740273","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
Concept of the Coherent Autofocus Map-Drift Technique 相干自动聚焦地图漂移技术的概念
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338002
P. Samczyński, K. Kulpa
{"title":"Concept of the Coherent Autofocus Map-Drift Technique","authors":"P. Samczyński, K. Kulpa","doi":"10.1109/IRS.2006.4338002","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338002","url":null,"abstract":"The paper presents concept of the coherent autofocus map-drift technique. The main goal of this work is to obtain high accuracy and sensitivity for autofocus technique in strip-mode SAR. Presented technique is based at the well-known noncoherent map-drift algorithm and it also takes advantages of multi-look registration to estimate unknown platform velocity component. At the proposed coherent map-drift technique, opposite to the classical map-drift, the cross-correlation is not carrying out at the image intensity from multi-look processing, but at the complex multi-look image data.","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":"133382515","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: 24
Suppression of Noise Floor and Dominant Reflectors in Random Noise Radar 随机噪声雷达噪声底和优势反射体的抑制
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338119
S. Axelsson
{"title":"Suppression of Noise Floor and Dominant Reflectors in Random Noise Radar","authors":"S. Axelsson","doi":"10.1109/IRS.2006.4338119","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338119","url":null,"abstract":"Noise radar can be used in a great number of applications. Wide bandwidth gives high range resolution, and the non-periodic waveform suppresses the range ambiguity. Due to the randomness of the waveform, a noise floor limiting the possible side lobe suppression accompanies the correlation integral. In strong clutter with dominant reflectors the induced noise floor can be too high and further suppression is needed. Improved clutter cancellation methods have mainly been discussed in connection to pseudo-random bi-phase pulse compression radar. In this paper, mismatched filtering is applied to suppress the side lobes of random noise radar. An iterative subrtraction algorithm for cancellation of noise floor due to dominating reflectors is analysed and is successfully tested on both random step frequency radar data and noise sodar data.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"209 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":"123532280","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: 20
Spatial-Temporal Differential Analysis for GMTD with Airborne Radars, Part 1: Theoretical Background 机载雷达GMTD的时空差分分析，第一部分:理论背景
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338012
A. Praskovsky, E. Praskovskaya, B. Himed
{"title":"Spatial-Temporal Differential Analysis for GMTD with Airborne Radars, Part 1: Theoretical Background","authors":"A. Praskovsky, E. Praskovskaya, B. Himed","doi":"10.1109/IRS.2006.4338012","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338012","url":null,"abstract":"We introduce a conceptually new approach to processing multiple synchronized radar signals. The method is referred to as the spatial-temporal differential analysis (STDA). STDA operates with spatial and temporal increments of the instantaneous signal power received from multiple channels. To improve the radar detection and tracking capabilities, STDA takes advantage of the signal scintillations, which are regarded as a harmful phenomenon by conventional signal analysis techniques. We present and discuss a simplified technique for ground-moving target detection (GMTD) using airborne radars with multiple receive channels. The technique is based on structure functions in a time domain, which are statistical moments of the increments. We demonstrate that STDA in the time domain \"senses \" different characteristics of the scatterers than conventional spectra-based techniques do. This new concept enables detection of weak moving targets in heavily cluttered environment.","PeriodicalId":124475,"journal":{"name":"2006 International Radar Symposium","volume":"8 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":"130755021","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
Real-Time Unfocused SAR Processor For Airborne Maritime Patrol Radar 机载海上巡逻雷达实时无聚焦SAR处理器
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338001
A. Gadoś, A. Gorzelańczyk, A. Jarzebska, M. Mordzonek, P. Samczyński, M. Smolarczyk, K. Kulpa, J. Misiurewicz
{"title":"Real-Time Unfocused SAR Processor For Airborne Maritime Patrol Radar","authors":"A. Gadoś, A. Gorzelańczyk, A. Jarzebska, M. Mordzonek, P. Samczyński, M. Smolarczyk, K. Kulpa, J. Misiurewicz","doi":"10.1109/IRS.2006.4338001","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338001","url":null,"abstract":"The modern airborne patrol radar benefits from having a real-time SAR capability. The high-resolution coast-line imaging, and vessel identification in maritime patrol radars can be done effectively in SAR mode. Telecommunication Research Institute in cooperation with Warsaw University of Technology started in 2003 project of an onboard SAR imaging processor for maritime airborne patrol radar. Such a processor has been introduced into a new version of Polish airborne radar and has been successfully tested by Polish Navy and Polish Coast Guard.","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":"131321146","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
Experimental Estimation of Measurement Precision in Radial Shifts Detection Using X-band Noise Waveform d-InSAR 基于x波段噪声波形d-InSAR的径向偏移检测精度实验估计
2006 International Radar Symposium Pub Date : 2006-05-24 DOI: 10.1109/IRS.2006.4338125
A. Mogyla, P. Vyplavin
{"title":"Experimental Estimation of Measurement Precision in Radial Shifts Detection Using X-band Noise Waveform d-InSAR","authors":"A. Mogyla, P. Vyplavin","doi":"10.1109/IRS.2006.4338125","DOIUrl":"https://doi.org/10.1109/IRS.2006.4338125","url":null,"abstract":"In the paper the results of experimental investigation of the X-band pulsed noise waveform (NW) synthetic aperture radar (SAR) are presented. The experiments were aimed on interferometric measurements with the help of X-band pulse noise waveform SAR with arc aperture which was designed by LNDES, IRE NASU (Kharkiv, Ukraine). The imaging scene consisted of urban territory with a number of buildings and trees. Interferometric capabilities of the system were analyzed with the help of a horn scatterer with precisely controlled position. The system enabled to resolve shapes of buildings and trees at ranges of 30-200 meters from the radar. Interferograms proved phase sensitivity of the system and enabled to detect shifts of trees branches due to wind. It was shown that radar enables to measure shifts with precision better than 0.5 mm.","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":"116870701","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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