2006年10月10日在北京，凌华科技推出DAQ-MTLB for MATLAB。数据采集工具箱，已通过MathWorks验证签订“Connection Program Terms and Conditions”，成为全球获得原厂颁发“MATLAB Enabled，Math Works Connection Program Product Pa...2006年10月10日在北京，凌华科技推出DAQ-MTLB for MATLAB。数据采集工具箱，已通过MathWorks验证签订“Connection Program Terms and Conditions”，成为全球获得原厂颁发“MATLAB Enabled，Math Works Connection Program Product Partner”资格的十二家厂商之一。展开更多
我们给出了MATLAB环境下的一个图形用户界面,用于远震剪切波分裂分析。鉴于越来越大型的地震学实验,设计SplitRacer来快速处理大型数据集,因为它集成了自动和用户主导步骤,这使得可根据用户自己的质量标准来进行直观的分析。SplitRacer...我们给出了MATLAB环境下的一个图形用户界面,用于远震剪切波分裂分析。鉴于越来越大型的地震学实验,设计SplitRacer来快速处理大型数据集,因为它集成了自动和用户主导步骤,这使得可根据用户自己的质量标准来进行直观的分析。SplitRacer提供了一系列用来确保精确测量以及用户友好的特征。可以从数字地震台网网络服务国际联合会成员的所有数据中心直接下载数据。将现有数据分割成1个小时的三分量地震波形后就很容易被使用。起初是自动数据检查,然后是对有问题的震相的目视评估。我们通过分析台站记录事件的质点运动并和理论反方位角进行比较来估计传感器的可能偏差。剪切波分裂分析是基于最小(切向)能量法(Silver and Chan,1991),这约束了快波偏振方向和延迟时间。可以对一系列时间窗进行重复测量来做统计误差分析。SplitRacer提供了每个台站单个震相分裂测量的概况,这可用于检测方位依赖性。为了推断台站下方的各向异性,SplitRacer为用一个或两个各向异性层模型,或平滑变化的各向异性模型来拟合观测数据提供了可能。此外,SplitRacer还提供了一个和两个假想层的多震相联合分裂分析,其中同时使用给定台站的所有事件来约束各向异性模型。这显著降低了噪声的影响,并使测量更稳健。作为示例,我们将应用SplitRacer来约束伯克利数字地震台网的固定台站BKS下方的地震各向异性。展开更多
This paper discusses an implementation based on CMEX S-functions to model and to check implementation feasibility of two most commonly used Maximum Power Point Tracking （MPPT） algorithms, namely Hill Climbing/Pertu...This paper discusses an implementation based on CMEX S-functions to model and to check implementation feasibility of two most commonly used Maximum Power Point Tracking （MPPT） algorithms, namely Hill Climbing/Perturb ＆ Observe （P＆O） and Incremental Conductance. This study can also be generalized to encompass the whole digital techniques family, including artificial intelligence like Neural Network and Fuzzy Logic Control.展开更多
In order to improve accuracy of electron beam transverse sizes measurement,the vertical and horizontal synchrotron radiation light interferometers have been designed to measure beam transverse sizes for the upgrade pr...In order to improve accuracy of electron beam transverse sizes measurement,the vertical and horizontal synchrotron radiation light interferometers have been designed to measure beam transverse sizes for the upgrade project of Hefei Light Source(HLS II).In this paper,the light intensity distributions of the interferogram are descussed,and parameters of the interferometers are optimized.The interferograms are simulated under MATLAB. Taking integrations of two-dimensional interferogram intensity,normalized one-dimensional interference intensities distribution of the vertical and horizontal interferogram are obtained.The two curves are fitted to compare the beam transverse sizes with the designed sizes,and this verifies the feasibility of this method.Finally,several factors that affect the beam sizes measurement are discussed.展开更多
文摘2006年10月10日在北京，凌华科技推出DAQ-MTLB for MATLAB。数据采集工具箱，已通过MathWorks验证签订“Connection Program Terms and Conditions”，成为全球获得原厂颁发“MATLAB Enabled，Math Works Connection Program Product Partner”资格的十二家厂商之一。
文摘我们给出了MATLAB环境下的一个图形用户界面,用于远震剪切波分裂分析。鉴于越来越大型的地震学实验,设计SplitRacer来快速处理大型数据集,因为它集成了自动和用户主导步骤,这使得可根据用户自己的质量标准来进行直观的分析。SplitRacer提供了一系列用来确保精确测量以及用户友好的特征。可以从数字地震台网网络服务国际联合会成员的所有数据中心直接下载数据。将现有数据分割成1个小时的三分量地震波形后就很容易被使用。起初是自动数据检查,然后是对有问题的震相的目视评估。我们通过分析台站记录事件的质点运动并和理论反方位角进行比较来估计传感器的可能偏差。剪切波分裂分析是基于最小(切向)能量法(Silver and Chan,1991),这约束了快波偏振方向和延迟时间。可以对一系列时间窗进行重复测量来做统计误差分析。SplitRacer提供了每个台站单个震相分裂测量的概况,这可用于检测方位依赖性。为了推断台站下方的各向异性,SplitRacer为用一个或两个各向异性层模型,或平滑变化的各向异性模型来拟合观测数据提供了可能。此外,SplitRacer还提供了一个和两个假想层的多震相联合分裂分析,其中同时使用给定台站的所有事件来约束各向异性模型。这显著降低了噪声的影响,并使测量更稳健。作为示例,我们将应用SplitRacer来约束伯克利数字地震台网的固定台站BKS下方的地震各向异性。
文摘This paper discusses an implementation based on CMEX S-functions to model and to check implementation feasibility of two most commonly used Maximum Power Point Tracking （MPPT） algorithms, namely Hill Climbing/Perturb ＆ Observe （P＆O） and Incremental Conductance. This study can also be generalized to encompass the whole digital techniques family, including artificial intelligence like Neural Network and Fuzzy Logic Control.
基金Supported by the National Science Foundation of China(10675118,11175173)
文摘In order to improve accuracy of electron beam transverse sizes measurement,the vertical and horizontal synchrotron radiation light interferometers have been designed to measure beam transverse sizes for the upgrade project of Hefei Light Source(HLS II).In this paper,the light intensity distributions of the interferogram are descussed,and parameters of the interferometers are optimized.The interferograms are simulated under MATLAB. Taking integrations of two-dimensional interferogram intensity,normalized one-dimensional interference intensities distribution of the vertical and horizontal interferogram are obtained.The two curves are fitted to compare the beam transverse sizes with the designed sizes,and this verifies the feasibility of this method.Finally,several factors that affect the beam sizes measurement are discussed.
