作者： GAO Weixi，MIAO Lingjuan，NI Maolin （School of Automation, Beijing Institute of Technology, Beijing 100081, China；National Key Laboratory of Science and Technology on Space Intelligent Control, Beijing Institute of Control Engineering,Beijing 100190, China）

出处： 中国航空学报：英文版 2011 第4期 P476-483

关键词： 捷联惯导系统；卡尔曼滤波器；静态校准；衰落；卡尔曼滤波算法；应用；捷联惯性导航系统；协方差矩阵

摘要： To solve the problem that the standard Kalman filter cannot give the optimal solution when the system model and stochastic information are unknown acc ...

作者： Gao Weixi，Miao Lingjuan，Ni Maolin （School of Automation，Beijing Institute of Technology；Beijing Institute of Control Engineering，National Key Laboratory of Science and Technology on Space Intelligent Control）

出处： Chinese Journal of Aeronautics 2011 第24卷 第4期 P476-483

关键词： inertial；navigation；systems；strapdown；initial；alignment；fading；filter；multiple；fading；factors；fenestration

摘要： 针对系统模型和统计信息不能精确已知的条件下Kalman滤波无法给出最优解这一问题,单一渐消因子Kalman滤波算法对于简单的系统是有效的,但是对于复杂的多变量系统,仅仅利用单个的渐消因子是不够的。本文提出了一种多渐消因子滤波算法,通过利用开窗法计算新息序列协方差的无偏估计获得渐消因子矩阵。利用渐消因 ...

作者： Du Li，Ce Yang，Ben Zhao，Mi Zhou，Mingxu Qi，Jizhong Zhang （School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China；Basic Subject Department, Bohai Shipbuilding Vocational College, Huludao, China；National Key Laboratory of Diesel Engine Turbocharging Technology, Datong, China）

出处： 热科学学报(英文版) 2011 第20卷 第6期 P486-494

关键词： axial-radial；combined；compressor；centrifugal；impeller；wake；inlet；distortion

摘要： Assembling an axial rotor and a stator at centrifugal compressor upstream to build an axial-radial combined compressor could achieve high pressure rat ...

作者： WANG Ke，LI Jie，Anders Djupsj(o)backa，Marek Chaci(n)ski，Urban Westergren，Sergei Popov，Gunnar Jacobsen，Volker Hurm，Robert Elvis Makon，Rachid Driad，Herbert Walcher，Josef Rosenzweig，Andreas G. Steffan，G. Giorgis Mekonnen，Heinz-Gunter Bach，LI Zhuo，Ari T. Friberg （School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China；School of Information and Communication Technology, Royal Institute of Technology, Stockholm, SE-164 40, Sweden；Department of Networking and Transmission Laboratory, Stockholm, SE-164 40, Sweden；Department of Networking and Transmission Laboratory, Stockholm, SE-164 40, Sweden；School of Information and Communication Technology, Royal Institute of Technology, Stockholm, SE-164 40, Sweden；Fraunhofer Institute for Applied Solid State Physics, Tullastr. 72, 79108 Freiburg, Germany；u2t Photonics AG, 10553Berlin, Germany；Departmen of Pthotonic Components-Integration Technology,Fraunhofer Institute for Telecommunications, 10587 Berlin, Germany；School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China）

出处： 北京理工大学学报(英文版) 2011 第3期 P410-414

关键词： 100；Gigabit；Ethernet；(；GbE；)；bit-error-rate；Eye-diagram；electrical；time-division；multiplexing；(ETDM)；system；modules

摘要： Traditional intensity modulated two-level electrical time-division multiplexing (ETDM)transmission systems working at 100 - 112 Gbit/s were investigat ...

作者： AHMAD Salman （Department of Mechanics, School of Aerospace Engineering, Beijing Institute of Technology）

出处： Chinese Science Bulletin 2011 第25期 P2674-2678

关键词： sloshing；of；fluids；partial；slip；boundary；disjoining；pressure；contact；line；finite；difference；method；successive；over-relaxation；technique

摘要： Sloshing is a kind of fluid motion inside partially filled containers. In spacecraft and other partially filled moving containers, sloshing plays an i ...

作者： CONG Binglong，LIU Xiangdong，CHEN Zhen （School of Automation, Beijing Institute of Technology, Beijing 100081, China）

出处： 中国航空学报：英文版 2011 第4期 P484-492

关键词： 鲁棒控制策略；刚体航天器；旋转；外部干扰；姿态机动；滑模控制；最短路径；控制问题

摘要： Eigenaxis rotation is generally regarded as a near-minimum time strategy for rapid attitude maneuver due to its constitution of the shortest angular p ...

作者： LI Shiyong，SUN Houjun，ZHU Bocheng （Institute of Electronic Engineering Peking University Beijing China School of Information and Electronics Beijing Institute of Technology Beijing China）

出处： 电子学报：英文版 2011 第3期 P575-578

关键词： ESPRIT；估计误差；散射中心；TLS；类型；二维；总体最小二乘；计算结果

作者： SHA Peng-Fei，XIN Jian-Guo，FANG Li-Ping，LIU Zheng-Fan，ZHOU Ying，YU Song-Lin，WEN Jian-Guo （School of Optoelectronics, Beijing Institute of Technology, Beijing；North China Research Institute of Electro-optics(NCRIEO),Beijing）

出处： 中国物理快报(英文版) 2011 第28卷 第4期 P115-117

关键词： WAVEGUIDE；LASER；WAVEGUIDE

摘要： A coupling frequency band of an in-phase locked sliced gain waveguide array laser is experimentally investigated.The experimental data show that for a ...

作者： WANYAN Zhen-hai，FENG Shun-shan （State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China）

出处： 北京理工大学学报(英文版) 2011 第3期 P289-294

关键词： detached-eddy；simulation；rearward；facing；step；supersonic；turbulence；SST；turbulence；model

摘要： Detailed formulation of the detached-eddy simulation (DES) based on shear stress transport model (SST) was deduced.Based on finite volume method,detac ...

作者： ZHANG Tie-mei，ZHU Ling，LUO Sen-lin，HAN Yi-wen，ZHANG Yan，YANG Shu-wen，LIU An-nan，MA Lan-jun，ZHAO Yan-yan，ZHANG Yan，LIU Bin，JIA Hong-bo，LIU Yun-jie （Beijing Hospital,Beijing 100730,China；Beijing Institute of Geriatrics,Ministry of Health,Beijing 100730,China；Beijing Hospital,Beijing 100730,China；Beijing Institute of Technology,Beijing 100730,China）

出处： 中华医学杂志（英文版） 2011 第124卷 第2期 P189-193

关键词： routine；health；check-up；health；assessment；physical；examination

摘要： Background The assembled data from a population could provide information on health trends within the population.The aim of this research was to extra ...