数据处理

The system developed by the author consists of a 7-holes pitot tube, a stepping motor, seven pressure transducers, an analogue amplifier, a computer data acquisition card, a switch voltage output circuit and a data processing system.

本文研制了一种七孔探针三维自动测速系统，该系统由球形七孔探针、异步步进电机、压力传感器、模拟放大器、计算机数据采集、开关量输出及数据处理系统组成。

The mutual interference problem between the components caused by the limitation of the intersection angle of the incident light beams and the dissymmetry of geometrical arrangement is solved by a data processing system composed of electronic mixer and data solver.

由电子混频和数据解算装置所组成的数据处理系统，解决了由于入射光束交角的限制及几何布置不对称性所造成的分量间相互干扰问题。

The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

本文研制了用于真空度检测的高频脉冲电源，通过Simulink仿真和试验检验其满足设计要求，实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出；利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集，通过异步串行通信实现单片机与计算机之间的数据通信，将检测数据传至上位机；在上位机利用Matlab开发人机交互界面，实现相关数据处理和图形显示，包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。

Calculation of ride index and statistic characteristic is the core.

依据采集到的试验数据进行动力学性能指标——平稳性指标的计算和求取各信号的最大值和最大平均值是试验数据处理的主要工作之一。

According to the characteristics of altimetric satellite's orbit, this thesis systematically studies the theory and methods of satellite altimeter data processing. The content includes the analysis of satellite's radial error in time domain and in space domain, the spectra characteristics of collinear tracks and crossover points distribution, the integral method and the computation and analysis of Topex altimeter data.

本文针对测高卫星轨道及地面轨迹所独有的特点，较系统地研究了卫星测高数据处理的理论与方法，内容涵盖了测高卫星径向轨道误差的时域特征分析与空域特征分析、共线轨迹与交叉点分布等的谱特征、整体求解法的研究以及Topex测高数据的初步计算与分析。

The book covers such topics as the problem of collinearity in multiple regression, dealing with outlying and influential data, non-normality of errors, non-constant error variance and the problems and opportunities presented by discrete data.

本书内容涵盖了在多重共线性回归问题等议题，与外围和有影响的数据，非错误，非正常常数误差方差的问题和离散数据处理带来的机遇。

But it will tell the computer where to store the data used during processing.

但是它将告诉计算机在数据处理过程中，所用的数据该放在何处。

The system was also installed with the RS-232 USB connecter connected with PC, which could process the more complicated serial data and show their pictures via PC. Meanwhile, the starting and braking processes as well as the stability research during its normal performance could be better analyzed.

系统还设置有与咒计算机通讯的RS-232串行接口，可将连续测量数据通过PC机进行更复杂的数据处理和图形显示，能较好地分析研究机械转动设备的启动、制动过程及对械转动设备在正常运行过程中的平稳性研究。

Then, according to the demand of the system, several items must be satisfied including the all-sided of DAQ, the continuity of condition monitoring and the real time of data processing. Hence, a system structure is put forward based on LabVIEW software development platform and C/S network, whose advantages are also described while being compared with the related techniques.

接着，通过对系统的需求分析，实时在线监测系统必须满足数据采集的全息化、状态监测连续化和数据处理实时化，提出了基于虚拟仪器开发平台LabVIEW和C／S的系统结构模式，介绍了开发平台的特性并比较了常见的网络模式优缺点。

Academic charge software can not settle for requirements in data processing yet. As a ancillary software , Excel can realize record paper, table correlation and data conversion and so on,and make up some lack of charge software by applicating in academic charge.

高校收费软件在数据处理方面尚不能完全满足需要，Excel作为一种辅助软件应用到收费工作中，能够实现记录单、表单关联和数据转换等多种功能，弥补收费软件的一些不足。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。