国家自然科学基金(61271442)

作品数：9被引量：136H指数：4
导出分析报告
相关作者：魏玺章黎湘龚仕仙华宏虎王超更多>>
相关机构：国防科学技术大学更多>>
相关期刊：《Chinese Journal of Electronics》《Journal of Systems Engineering and Electronics》《宇航学报》《电子学报》更多>>
相关主题：非均匀信道化接收机宽带数字信道化接收机电子战数字信道化接收机更多>>
相关领域：电子电信自动化与计算机技术理学轻工技术与工程更多>>
-
在结果中检索

检索结果分析

结果分析中...
共 条 记 录，以下是1-9
全选清除导出
参考文献引证文献引用追踪
视图：
排序：
Dimensions estimation for cone-cylinder target based on sliding-type scatterers analysis被引量：2
《Journal of Systems Engineering and Electronics》2017年第1期10-18,共9页Yuling Liu Xizhang Wei Bo Peng Yongshun Ling 
supported by the National Natural Science Foundation of China(61271442)
Scatterers often exhibit aspect or frequency dependence which affects the micro-Doppler shift in scattering response. For cone-cylinder targets, sliding-type scatterers which slide on the edge discontinuity with the c...
关键词：Cylinders (shapes) 
Mathematic principle of active jamming against wideband LFM radar被引量：12
《Journal of Systems Engineering and Electronics》2015年第1期50-60,共11页Shixian Gong Xizhang Wei Xiang Li Yongshun Ling 
supported by the National Natural Science Foundation of China(61271442)
The inherent mathematic principle of active jamming against the wideband linear frequency modulated（LFM） radar is investigated. According to different generation strategies, the active jamming methods are reclassifi...
关键词：linear frequency modulated（LFM） mathematic principle active jamming 
ECCM scheme against interrupted sampling repeater jammer based on time-frequency analysis被引量：33
《Journal of Systems Engineering and Electronics》2014年第6期996-1003,共8页Shixian Gong Xizhang Wei Xiang Li 
supported by the National Natural Science Foundation of China(61271442)
The interrupted sampling repeater jamming（ISRJ） is an effective deception jamming method for coherent radar, especially for the wideband linear frequency modulation（LFM） radar. An electronic counter-countermeasure...
关键词：interrupted sampling repeater jamming（ISRJ） de-chirping radar time-frequency（TF） electronic counter-countermeasure（ECCM） 
Aliasing-free high resolution imaging of fast rotating targets with narrowband radar被引量：1
《Journal of Central South University》2014年第5期1842-1851,共10页游鹏 刘振 魏玺章 王宏强 黎湘 
Projects(61171133,61271442)supported by the National Natural Science Foundation of China;Project(61025006)supported by the National Natural Science Foundation for Distinguished Young Scholars of China;Project(B110404)supported by the Innovation Program for Excellent Postgraduates of National University of Defense Technology,China
Narrowband radar has been successfully used for high resolution imaging of fast rotating targets by exploiting their micro-motion features.In some practical situations,however,the target image may suffer from aliasing...
关键词：narrowband radar imaging fast rotating compressed sensing random pulse repetitive interval aliasing reduction 
基于联合对角化的近场源三维参数估计被引量：2
《雷达科学与技术》2014年第1期63-68,75,共7页王超 魏玺章 
国家自然科学基金(No.61271442)
提出了一种基于联合对角化的近场源频率、到达角(DOA)和距离的联合估计算法。首先利用二阶统计量构造白化矩阵,再基于白化后的接收数据构造一组高阶累积量矩阵,利用联合对角化方法来得到高阶累积量矩阵的对角结构信息以及对角化矩阵来...
关键词：联合对角化 频率估计 距离估计 到达角估计 
中段目标高分辨距离像姿态敏感性影响度量方法被引量：2
《宇航学报》2013年第6期833-841,共9页彭勃 魏玺章 刘振 张瑞 黎湘 华宏虎 
国家自然科学基金委杰出青年基金(61025006);国家自然科学基金(61271442)
高分辨距离像(HRRP)存在散射中心模型改变、越距离单元走动、闪烁现象三个方面的姿态敏感性,同时影响距离像预处理、特征选择、模板生成等方面。为了区分不同姿态敏感性对距离像识别的影响,从而研究针对性的解决办法,首先在识别理论框架...
关键词：高分辨距离像 姿态敏感性 影响水平 度量 雷达目标识别 
宽带数字信道化接收机综述被引量：74
《电子学报》2013年第5期949-959,共11页龚仕仙 魏玺章 黎湘 
国家自然科学基金(No.61271442)
宽带数字信道化接收机以其高性能在电子战和无线电通信中有着重要的运用.本文基于复杂电磁环境下电子战的运用需求,分析了信道化接收机系统的发展现状和趋势;研究了目前的数字信道化接收机技术的主要系统结构及其发展趋势;重点分析了信...
关键词：数字信道化接收机 电子战 发展趋势 非均匀信道化接收机 
Parameter Estimation and Performance Analysis of Coherent Polarization Attributed Scattering Center Model被引量：9
《Chinese Journal of Electronics》2013年第1期195-201,共7页XU Shaokun WEI Xizhang LI Xiang GUO Guirong 
This work is supported by the National Science Fund for Distinguished Young Scholars of China （No.61025006）; the National Natural Science Foundation of China （No.61271442）.
Both scattering center and polarimetric in-formation are of great significance for radar target recog-nition and classification. Firstly, a Coherent polarization attributed （CPA） scattering center model is establish...
关键词：Coherent polarization attributed（CPA） model Parameter estimation Cramer-Rao bounds（CRBs） Performance analysis. 
Narrow-band tomographic radar imaging of precession cone targets被引量：1
《Journal of Systems Engineering and Electronics》2012年第6期866-874,共9页Xizhang Wei Shixian Gong Xiaofeng Ding 
supported by the National Natural Science Foundation of China (61271442)
The principle and method of the narrow-band tomo-graphic radar imaging （NBTRI） of the precession cone target are studied. Firstly, the motion model and electromagnetic scattering characteristics of the precession co...
关键词：NARROW-BAND tomographic PRECESSION tomographyclean. 
全选清除导出
共1页<1>
检索报告 对象比较 聚类工具 使用帮助 返回顶部