国家自然科学基金(60771060)

作品数:7被引量:13H指数:2
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相关作者:张金玲喇东升吕英华孙思扬阮方鸣更多>>
相关机构:北京邮电大学贵州师范大学北京信息科技大学更多>>
相关期刊:《The Journal of China Universities of Posts and Telecommunications》《Science China(Physics,Mechanics & Astronomy)》《Chinese Physics B》《Chinese Journal of Electronics》更多>>
相关主题:遗传算法超宽带微带天线超宽带天线HFSS基于遗传算法更多>>
相关领域:电子电信自动化与计算机技术动力工程及工程热物理理学更多>>
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Second Harmonic Suppression for Broadband Helix Traveling-Wave Tubes Using the Phase Velocity Variation of Output Circuit
《Chinese Journal of Electronics》2016年第3期577-582,共6页ZHANG Jinling YANG Jinsheng ZHANG Hongxin 
supported by National Natural Science Foundation of China(No.61171051,No.60771060)
Based on the principle of phase velocity tapering or stepping output circuit, using the phase velocity variation of the output circuit, four kinds of nonuniform output circuit models have been presented in broadband h...
关键词:Backward wave suppression Fundamental efficiency Nonuniform circuits Second harmonic suppression Traveling-wave tube(TWT) 
Photo-enhanced field electron emission of cadmium sulfide nanowires
《Science China(Physics,Mechanics & Astronomy)》2011年第11期1963-1966,共4页ZHANG JinLing LV YingHua LIU Ning LI YanQing GAO Peng BAI XueDong 
supported by the National Natural Science Foundation of China (Grant Nos. 60771060,61072136 and 60871081)
The response of field electron emission of cadmium sulfide (CdS) nanowires (NWs) to visible light has been investigated.It is found that,upon light illumination,the turn-on voltage drops,emission current increases obv...
关键词:field electron emission optical coupling CdS nanowires semiconductor emitters 
零刚度弹性梁旋转式陀螺研究
《压电与声光》2011年第1期41-44,共4页王宏伟 张金玲 倪晓明 其木苏荣 齐臣杰 邢振华 
国家自然科学基金项目(60771060);北京市教育委员会科技发展计划项目(KM200811232009;KM200910772018);北京市教委中青骨干人才计划(PHR201108267)
设计并制作了在"零扭转刚度"条件下的一种用于旋转体偏航角速率测量的陀螺。分析该陀螺工作原理,建立该陀螺的数学模型,设计和制作了零扭转刚度陀螺的敏感结构。利用交流电桥提取电容变化信号,进而实现对旋转体偏航角速度的测量。在旋...
关键词:旋转 零扭转刚度 电容敏感 角速度 陀螺 
基于遗传算法的超宽带微带天线优化设计被引量:8
《电波科学学报》2011年第1期62-66,共5页孙思扬 吕英华 张金玲 喇东升 赵志东 阮方鸣 
教育部高等学校博士学科点专项科研基金项目(编号:200700130046);国家自然科学基金资助项目(编号:60771060;60971078)
将遗传算法应用于超宽带微带天线设计。建立了基于遗传算法和高频电磁仿真软件(HFSS)的优化工程。在此基础之上,优化设计出了一款超宽带微带天线。讨论了该优化工程的操作流程,并对天线特性进行了研究。研究结果表明:所设计天线在3...
关键词:遗传算法 超宽带天线 优化 HFSS 
Implementation of compressive sensing in ECG and EEG signal processing被引量:3
《The Journal of China Universities of Posts and Telecommunications》2010年第6期122-126,共5页ZHANG Hong-xin WANG Hai-qing LI Xiao-ming LU Ying-hua ZHANG Li-kun 
supported by the Fundamental Research Funds for the Central Universities (2009RC0316);the National Natural Science Foundation of China (60871081, 60771060)
The purpose of this paper is to exploit compressive sensing (CS) method in dealing with electrocardiography (ECG) and electroencephalography (EEG) signals at a high compression ratio. In order to get sparse data...
关键词:CS ECG EEG 
Coexistence of broadband power line communication systems被引量:2
《The Journal of China Universities of Posts and Telecommunications》2009年第4期125-128,共4页YANG Biao ,L Ying-hua,ZHANG Hong-xin School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China 
supported by the National Natural Science Foundation of China (60671055, 60771060, 60871081)
Recent progress in home networks enhances the application of broadband power line communication (BPL) since it does not require any installation of new communication lines or outlets. However, high-density distribut...
关键词:BPL coexistence effect radiating electromagnetic field 
Design and analysis of doped left-handed materials
《Chinese Physics B》2008年第5期1645-1651,共7页张洪欣 包永芳 吕英华 陈天明 王海侠 
supported by the National Natural Science Foundation of China (Grant Nos 60671055 and 60771060);Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant Nos 20070013002 and 20070013004)
We devise three sorts of doped left-handed materials (DLHMs) by introducing inductors and capacitors into the traditional left-handed material (LHM) as heterogeneous elements. Some new properties are presented thr...
关键词:LHMs doped materials forbidden band pass band 
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