IEEE International Radar Conference, 2005.最新文献_第9页

Automatic classification of hydrometeors based on polarimetric weather radar measurements 基于极化气象雷达测量的水成物自动分类

IEEE International Radar Conference, 2005. Pub Date : 2005-05-09 DOI: 10.1109/RADAR.2005.1435923

Junwu Cao, Liping Liu

引用次数: 0

A modulation and de-modulation technique for quadraphase pulse compression codes 四相脉冲压缩码的调制和解调技术

IEEE International Radar Conference, 2005. Pub Date : 2005-05-09 DOI: 10.1109/RADAR.2005.1435891

C. Nunn, T. Tang

引用次数: 1

An active antenna demonstrator for future AESA-systems 未来aesa系统的有源天线演示器

IEEE International Radar Conference, 2005. Pub Date : 2005-05-09 DOI: 10.1109/RADAR.2005.1435824

P.N. Drackner, B. Engstrom

引用次数: 9

P-SAR: an advanced miniature synthetic aperture radar for forestry applications. Preliminary design P-SAR:一种用于林业的先进微型合成孔径雷达。初步设计

IEEE International Radar Conference, 2005. Pub Date : 2005-05-09 DOI: 10.1109/RADAR.2005.1435948

J. F. Ventura, Peter Hoogeboom

引用次数: 1

Spaceborne synthetic aperture radar quick-look processing with ECS+FIR algorithm 星载合成孔径雷达的ECS+FIR算法快速处理

IEEE International Radar Conference, 2005. Pub Date : 2005-05-09 DOI: 10.1109/RADAR.2005.1435922

W. Zhu, Zhou Yinqing, Chen Jie

引用次数: 1

Signal processing for automotive radar 汽车雷达信号处理

IEEE International Radar Conference, 2005. Pub Date : 2005-05-09 DOI: 10.1109/RADAR.2005.1435944

D. Kok, J. Fu

{"title":"Signal processing for automotive radar","authors":"D. Kok, J. Fu","doi":"10.1109/RADAR.2005.1435944","DOIUrl":"https://doi.org/10.1109/RADAR.2005.1435944","url":null,"abstract":"With rising accident rates, researchers are looking for solutions to reduce fatalities. Some enhance car designs to protect drivers more adequately. Some propose improvements to the traffic and road systems to reduce the chances of accidents. Still others propose the installation of special gadgets to improve the situational awareness of drivers and to alert them to dangerous circumstances. A motor vehicle may be equipped with a radar sensor that checks the spatial environment around the vehicle. The radar is the most commonly adopted sensor for this purpose due to its all-weather capability. In this paper, a 77-GHz FMCW automotive radar signal processor is developed and implemented using the Renesas (previously Hitachi) SH7615 solutions engine development board. The project includes building additional required hardware, the DSP algorithm and a data simulator program to generate test data for testing. The main purpose of the automotive radar signal processor is to detect legitimate targets from unwanted clutter (e.g. road surfaces), and to extract target information from the radar returns. In this paper, the application of the new AND-OR CFAR is also introduced. The simple mathematical fusion models of the AND-OR CFAR are provided and explained here as well. This manuscript is divided into sections. The first section will delve into the basics and the building blocks of the automotive radar. The signal processing portion of this work will be presented in the second section. The data simulator built to simulate testing data is explained in the third section. Results from testing are put forward in section four. Conclusions drawn from the experience are presented in the last section.","PeriodicalId":444253,"journal":{"name":"IEEE International Radar Conference, 2005.","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127880977","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: 26

An efficient wavefront curvature correction algorithm for turntable spotlight ISAR systems using stepped frequency waveforms 基于阶跃频率波形的转台聚光灯ISAR系统波前曲率校正算法

IEEE International Radar Conference, 2005. Pub Date : 2005-05-09 DOI: 10.1109/RADAR.2005.1435839

S.D. Fisher, M. Richards, J. McClellan

{"title":"An efficient wavefront curvature correction algorithm for turntable spotlight ISAR systems using stepped frequency waveforms","authors":"S.D. Fisher, M. Richards, J. McClellan","doi":"10.1109/RADAR.2005.1435839","DOIUrl":"https://doi.org/10.1109/RADAR.2005.1435839","url":null,"abstract":"Wavefront curvature phenomena have a noticeably negative impact on the final formed image, removing the distortion and defocusing effects become an important step in a turntable ISAR imaging system. This paper outlines an efficient wavefront curvature correction algorithm that corrects the distortion effects by implementing a set of 1-D operations in spatial frequency before the final image is formed. By implementing the algorithm in spatial frequency space, several advantages over post-image formation wavefront curvature correction techniques can be realized. The first advantage is that this algorithm can be broken down into a set of 1-D operations that can be applied across each row or column of the 2-D spatial frequency data grid, while post-image formation techniques can require a 2-D spatially varying filter, or a pixel-by-pixel remapping, to \"unwarp\" and focus the image. The second advantage of this algorithm stems from the fact that the number of data samples in the spatial frequency domain is often much smaller than the number of samples in the final image, because relatively large discrete Fourier transforms (DFTs) are used in image formation to create finely-detailed imagery. Performing the correction in the frequency domain thus requires operation on fewer samples than does correcting the warping in the more densely-sampled image domain.","PeriodicalId":444253,"journal":{"name":"IEEE International Radar Conference, 2005.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114699556","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

Geometrical and signal processing aspects using a bistatic hitchhiking radar system 几何和信号处理方面采用双基地搭便车雷达系统

IEEE International Radar Conference, 2005. Pub Date : 2005-05-09 DOI: 10.1109/RADAR.2005.1435846

O. Overrein, K. E. Olsen, S. Johnsrud, P. Sornes, T. Johnsen, J. Navarro, V. Sahajpal, R. Stemland

{"title":"Geometrical and signal processing aspects using a bistatic hitchhiking radar system","authors":"O. Overrein, K. E. Olsen, S. Johnsrud, P. Sornes, T. Johnsen, J. Navarro, V. Sahajpal, R. Stemland","doi":"10.1109/RADAR.2005.1435846","DOIUrl":"https://doi.org/10.1109/RADAR.2005.1435846","url":null,"abstract":"Bistatic hitchhiking radar system concepts have been object for extensive research both for military and civilian applications. Hitchhiking systems are in principle easy to construct and can be used without introducing any interference, or being seen by a possible enemy. This paper addresses how to handle the geometry such systems are faced together with using proper signal analysis strategies for obtaining optimum target detection. The main motivation for doing bistatic measurements is to be able to see signals from the target that are scattered in other directions than backwards, due to target shape. For large bistatic angles the target forward scattering region can give serious enhancement due to the Babinet principle. Experimental results from bistatic hitchhiking radar are shown for the purpose of aircraft detection. The data presented has been processed non-coherently. For suppression of device noise and scan-to-scan stationary clutter a signal analysis method called \"target back propagation technique\" has been used. Sampled radar data containing 6 aircrafts is presented. The technique is used on an image with bistatic geometry averaged over 3 scans and with target back propagation locally applied for each aircraft. All aircrafts are sharpened in the image and this illustrates the usefulness of the \"target back propagation technique\" for suppression of device noise and stationary clutter, even if just three scans are integrated.","PeriodicalId":444253,"journal":{"name":"IEEE International Radar Conference, 2005.","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124081161","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: 15

Matrix approach to modelling of SAR signals 矩阵法模拟SAR信号

IEEE International Radar Conference, 2005. Pub Date : 2005-05-09 DOI: 10.1109/RADAR.2005.1435949

L. Lidicky, P. Hoogeboom

引用次数: 0

Multi-static coherent sparse aperture approach to precision target detection and engagement 多静态相干稀疏孔径方法用于精确目标探测与交战

IEEE International Radar Conference, 2005. Pub Date : 2005-05-09 DOI: 10.1109/RADAR.2005.1435893

D. Kirk, J. Bergin, P. Techau, J.E. Don Carlos

引用次数: 20