sampling observation meaning in English
抽样观查
抽样观察
检查取样
取样观测
取样观察
取样检查
Examples
- The autonomous celestial navigation algorithm in the case of small sample observation is investigated in this paper
本文分析了航天器实现自主导航的天文导航方法。 - In accordance with coal sample observation by scanning electron microscope ( sem ) and researches based on such subjects as anthracology , tectonic geology and material mechanics , the endokinetic fractures in coal are further classified into dewatering fractures , condense fractures and static pressure fractures , while the exogenetic fractures are further divided into tensile fractures , pressure fractures , shrink fractures and slack fractures , consistent with the development regularity of the geometric shapes , sizes and arrangement of fractures
摘要分析、归纳了大量的扫描电子显微镜观测结果，以煤岩学、构造地质学研究?基拙，依锯煤中显微裂隙的形态、大小、排列组合等发育特征，将内生裂隙进一步划分?失水裂隙、缩聚裂隙、静压裂隙，将外生裂隙进一步划分?张性裂隙、压性裂隙、剪性裂隙、松弛裂隙。 - We present two different frameworks to analyzing the high frequency time series : first , regularly spaced sampled observations , which is sampled with interval of one hour , one minute even one second ; secondly , the irregularly spaced data , such as transaction by transaction data 。 the main work and innovations of the dissertation include : 1 . through empirical research of high - frequency time series of shanghai composite index , the paper researches the different statistical properties on different frequency
高频时间序列的分析与建模是金融计量学的一个全新研究领域。金融市场中高频时间序列分为两类:一类是采样间隔相等的数据,比如一小时、十分钟、五分钟、甚至是以秒为单位采集的按时间先后排列的等时间间隔的数据;另一类是指对交易过程实时采集的数据,也就是每笔交易的数据(显然是不等间隔的数据) 。 - Contrasting this , in feedback control the most majority of complex systems are controlled using sampled observations of system behavior taken at discrete time instants . thus the resulting controlled systems are hybrid systems , which are called sampled - data systems , involving both continuous - time and discrete - time signals . the investigation of sampled - data systems is motivated primarily due to the widespread use of digitally implemented controller in present - day feedback control of continuous - time systems
工程实践中遇到的动态系统通常是连续时间系统，与此相反，大多数复杂系统的反馈控制却是通过观察采样点上的系统行为来进行控制的，结果所得到的反馈控制系统是个混合系统，它含有连续信号和离散信号，这样的系统称之为采样系统，当今连续受控系统中数字控制器的广泛运用促进了对采样系统的研究，已有的线性采样系统理论显然不能满足处理非线性采样系统的需要，因此近年来非线性采样系统的分析与设计已经成为国际控制论界的持续的研究热点之一。