So, in order to gain the necessary detail of the traffic, sampling time scale must be selected correctly. 所以,为了得到必要的流量特征细节,必须合理选择采样时间粒度。
This paper presents a new method for joint estimation of carrier frequency offset and sampling time offset based on the recursive least-square ( RLS) algorithm for OFDM systems in the tracking mode. 针对OFDM载波频偏与采样时偏的联合估计问题,提出了一种基于递推最小二乘(RLS)算法的新方法。
Please note the free sampling time for FLOWER Brand cosmetics indicated in the classification of the newspaper. 请注意报纸广告栏上注明的花牌化妆品免费试用期。
The impact of sampling time on concentration of collected bacterium, fungus particles and mid-value diameter of particle number are studied by ANDERSEN bioparticle sampler in lab. 在室内用ANDERSEN生物粒子采样器进行了不同采样时间对采集空气细菌和真菌粒子浓度、粒数中值直径效果的研究。
On the basis of analytical chemistry, the design method of the sampling time is provided. 根据分析化学的要求,提出样品采集时间的设计方法。
The design used pulse cycle measurement to shorten sampling time, advance the delicacy, and make the metrical result precise and stable. 运用了脉冲周期测量法,使采样测量周期缩短,灵敏度提高,测量数据精确,读数稳定。
These two SVMs can be smoothly used in cascaded high-voltage inverter via staggered sampling time to completely eliminate common-mode voltage. 该两种SVM通过错时采样技术,平滑应用于级联型高压变频器,并可完全抑制其共模电压。
Differences in sampling time and population densities had no effect on the spatial distribution pattern of F.occidentalis. 该虫的空间分布型不受种群密度的影响,并且也不随取样时间的变化而变化。
Discussions on the Sampling Time Interval in Sunshine Computation of Buildings 对建筑日照计算中采样时间间隔参数问题的探讨
Because the sampling time is not a match for the leading segment, the dynamic process is not very ideal when the disturbance from the leading segment takes place. 但由于采样周期与导前区不匹配,当发生导前区扰动时过渡过程仍不理想。
For design purposes, sampling time required can be determined according to the user-specified WERI value, so that the redesigned digital system performs accordingly. 针对设计问题,所需的取样时间可以藉由使用者指定之WERI值来决定,使得数位化后之数位系统响应可以达到所需要求。
The Rightly Use of Sampling Time of PID Model in Step 7 Step7中PID模块采样时间的正确使用
The relation between the filter sampling time and cutting error is fuzzed. 将滤波器的采样时间与剪切误差之间的关系模糊化。
Also, the paper gives the analysis and discussion about the influence of calculation data length, sampling time and the accuracy of A/ D, D/ A converter on the control quality of the system when adaptive control is realized by microcomputer. 本文还分析和讨论了自适应控制算法由微机实现时,计算字长、采样时间、A/D与D/A转换器的位数对控制系统控制质量的影响。
This paper founds the periodic and aperiodic commission model based PROFIBUS-DP with Stochastic process, and analyzes that the error bit rate and aperiodic commission impact the system cycle time ( sampling time). 本文运用随机过程建立基于PROFIBUS-DP周期和非周期通信的数学模型,分析误码率和非周期通信对系统循环时间(采样时间)影响。
It was chased down that General dimension series value changed with the variation of the sampling time and noise. 计算了标准信号的广义分形维数,找出了广义维数序列值随信号的采样时间、噪声变化而变化的特点。
The effect of sampling time shift and nonlinearity of A/ D, and the reduction of the effect are analysed also. 最后分析了时间抖动和A/D非线性的影响以及降低这种影响的方法。
A best controller is chosen by the performance function at every sampling time. 在每个采样时刻根据性能评价函数来选择最佳控制器。
In this paper, a vector control system using one z-80 Single board microcomputer and two Z-80 CPU units is presented. This system has effectively solved the problems between slow calculation rate of presents bit microcomputer and short sampling time and complex calculation in a vector control system. 本文介绍的矢量控制系统,采用一台Z-80单板机和二个Z-80扩展CPU单元,有效地解决了目前的八位微处理机运算速度慢与在矢量控制系统中采样时间短及运算最大的问题。
According to the characteristics of hydropower unit, the reasonable methods of measurement and data analysis are presented, including the sensors selection, location, and installation, reasonable sampling rate, sampling time, and analysis methods etc. 根据水电机组的特点,提出了合理的测试方法和数据分析方法,包括传感器的选型、布置、安装、采样速率和采样时间的选择、分析方法的选择等。
The stability is studied when the network transmitting time-delay is smaller than a constant of a period of sampling time. 当网络诱导时延为小于一个采样周期的常数时,对系统的稳定性进行了分析。
Meanwhile the effect on the diffusion parameters from sampling time is measured based on the above SF6 trace experiments. 并对取样时间对扩散参数的影响作了实验测定。
The loss of potassium in purple soil and paddy soil increased with sampling time. 紫色土和水稻土钾流失量随时间增加而增加;
The control parameter, sampling time and fixed value can be adjusted on line. 可以在线进行控制器参数,采样时间以及给定值的调整。
At the same time, three main factors affecting the algorithm is studied in detail, i.e., whether system is feedback, sampling time and the number of sensors. 同时,本文对影响算法的三个主要因素,即采样时间、系统是否反馈和传感器数量,进行了深入的分析。
Controller can satisfy sampling time and response speed which are requested by strip shape control system. Controller provides convenient programming and debugging environment. 它既满足了系统要求的采样时间和响应速度,又提供了便捷的调试和编程环境,对液压系统的位置和压力的控制具有良好的效果。
By introducing and comparing several typical MPPT methods, this thesis discusses mechanism of misjudgment in MPPT, especially the effect to incremental conductance method caused by sampling error, sampling time and step variation. 本文对几种常用的MPPT方法进行了详细的阐述和对比,分析了MPPT方法中误判的产生机理,重点讨论了采样误差、采样时间、变化步长对导纳增量法跟踪性能的影响。
The cause of it is that the time delay isnot the integral multiple of the sampling time. 指出产生此类振铃现象的原因是由于模型的时滞不是采样周期的整数倍。
The sampling time points was 14.28, 42 days of age. 采样时间点为14,28,42日龄。