作者: 李杰然,张旭东,许稼 (清华大学电子工程系;中国人民解放军92785部队;北京理工大学信息与电子学院)
出处: 第七届全国信号和智能信息处理与应用学术会议 中国河南郑州 2013
会议录: 第七届全国信号和智能信息处理与应用学术会议会刊
关键词: 信号处理;二维DOA估计;极化估计;空时二维处理阵
摘要: 提出了一种适用于任意阵列的极化和二维DOA联合估计算法。该算法基于信号空时二维结构特征,利用空域采样和时域采样构造时空矩阵,通过DOA矩阵方法进行极化和二维DOA参数估计,不需要二维谱峰搜索,计算量小。仿真实验证明了算法的有效性。
作者: 高子健,赵鹏飞,司黎明,刘埇,吕昕 (北京理工大学信息与电子学院电子工程系;毫米波与太赫兹技术北京市重点实验室)
出处: 2013年全国微波毫米波会议 中国重庆 2013
会议录: 2013年全国微波毫米波会议论文集
关键词: 太赫兹;MEMS;角锥喇叭;平面波纹
摘要: 本文提出了一种基于硅基片MEMS工艺,工作于500GHz的低剖面角锥喇叭天线。通过加载平面波纹开槽结构,使得普通500GHz角锥喇叭天线受加工工艺限制,增益低、副瓣高的问题得到改善。通过HFSS软件仿真对波纹开槽结构对天线的增益和副瓣电平的改善效果进行了分析。对于天线的整体结构,给出了较为详尽的湿法 ...
作者: 李庆,刘埇 (北京理工大学信息与电子学院电子工程系;毫米波与太赫兹波技术北京市重点实验室)
出处: 2013年全国微波毫米波会议 中国重庆 2013
会议录: 2013年全国微波毫米波会议论文集
关键词: 正弦天线;平面等角螺旋天线;吸波材料;巴伦
摘要: 本文设计并制备了5GHz-15GHz频段的平面等角螺旋天线(圆极化)和正弦天线(线极化)两种天线;为实现平衡馈电,设计了一种同轴线-微带线转换器作为馈电巴伦;测试结果表明平面等角螺旋天线在整个频段内电压驻波比小于2.5,正弦天线在95%的带宽内电压驻波比小于2.5;为研究吸波材料对这种宽频天线辐射方 ...
作者: Xiaozhong Shui;Haibo Tang
出处: 2013 2nd International Conference on Computer Science and Electronics Engineering(ICCSEE2013)(2013年第二届计算机科学与电子工程国际会议) Hangzhou, China 2013
会议录: 2013 2nd International Conference on Computer Science and Electronics Engineering(ICCSEE2013)(2013年第二届计算机科学与电子工程国际会议)论文集
关键词: printed quadrifilar helical antenna;wide beam;wilkinson power divider
摘要: It was mainly analysed a S-band printed quadrifilar helical antenna for communication devices in this paper.And a dielectric loaded wide beam printed ...
作者: MA Cui-mei;CHEN He;DU Qin (1School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)
出处: Transactions of Beijing Institute of Technology 2013 Vol.33 No.10 P1067-1071
关键词: compatible scaling;hardware resource;radix-3 FFT;single floating
摘要: A new technique for radix-3 FFT butterfly unit based on floating-point operation is proposed. The aim of the new design is to reduce the hardware reso ...
作者: BU Xiang-yuan;YANG Hang;QIU Yuan;FANG Jin-hui (1School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)
出处: Transactions of Beijing Institute of Technology 2013 Vol.33 No.10 P1077-1082
关键词: field programmable gate array(FPGA);LEO satellite communication system;Max-Log- MAP;parallel decoding;Turbo code
摘要: In order to effectively reduce Turbo decoding complexity in hardware implementation and reduce its resource consumption, an improved Turbo decoding al ...
作者: Song Zhengyu;Hou Shujuan;Wu Siliang (1School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)
出处: Transactions of Beijing Institute of Technology 2013 Vol.33 No.4 P408-412
关键词: TETRA digital trunked;S-ALOHA random access;delay analysis;air interface
摘要: Random access delay performance of TETRA professional mobile radio system is studied in this research. Based on Markov chain and queue theory models, ...
作者: ZHANG Zhuo;ZHAO Guo-qiang;SUN Hou-jun;LÜ Xin (1School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)
出处: Transactions of Beijing Institute of Technology 2013 Vol.33 No.10 P1072-1076
关键词: angle error;dual-polarization;mono-pulse antenna;stacked structure
摘要: The application of dual-polarization microstrip array antenna in mono-pulse radar system is introduced. The radar system may achieve polarization dive ...
作者: Yujie Xiong;Xiaofei Zhang;Yi Zhang
出处: 2013 2nd International Conference on Computer Science and Electronics Engineering(ICCSEE2013)(2013年第二届计算机科学与电子工程国际会议) Hangzhou, China 2013
会议录: 2013 2nd International Conference on Computer Science and Electronics Engineering(ICCSEE2013)(2013年第二届计算机科学与电子工程国际会议)论文集
关键词: OFDM;sampling frequency Offset;phase deviation
摘要: OFDM has been successfully adopted in Digital video broadcasting-terrestrial (DVB-T) due to its excellent spectral efficiency and inherent resistance ...
作者: Shuang Xu;Weiming Tian;Lin Sun;Di Yao;Tao Zeng
出处: IET International Radar Conference Xi\'an, China 2013
会议录: IET International Radar Conference 2013 : Volume 3 of 3.
关键词: Stepped-Chirp;Amplitude Fluctuation;Grating lobes;Compensation filter
摘要: This paper investigated grating lobes suppression technique in stepped-chirp radar. By means of theoretical derivation, it is concluded that amplitude ...