查询词典 data acquisition

Design of anti-aliasing filter in high precision data acquisition.

高精度数据采集中抗混叠滤波器的设计。

Moreover, the effect of aphid pre-acquisition starvation was further researched and our data support the behavioral factor determined hypothesis.

此外我们对禁食效应的机制的深入研究也支持"行为因子调控"的假说。

The Argosy Technologies system, known as R-AT-MM measuring system, delivers a total solution including high accuracy data acquisition, accumulation, processing and communication.

被称为R-AT-MM测量系统的Argosy技术系统，提供了一个整体解决方案，包括高精度数据采集、积累、处理和通信。

The Auto-processing system for shooting of artillerymen consists of PC-104, laser visualizer, information device and artillery terminal, and software modules of host computer, data acquisition, communication, shooting operation.

炮兵射击条件自动处理系统由PC-104、激光观测仪、信息机和火炮终端机及主控、数采、通信、射击作业等软件模块构成。

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。

Image interpretation expert system using both the spectrum information carried by RS imagery and the knowledge of experts or the auxiliary geographical data, is a effective way. But the difficulties in knowledge acquisition and the regional limitation of knowledge impede the practical use of this method.

在遥感光谱信息的基础上，加入地理辅助信息和专家的地学知识进行专题分类是提高精度的一个有效途径，但专家知识的获取和专家知识的区域性严重影响了方法的实用价值。

This paper is studying fluctuation of price, backwardation and contango in future markets. Based on the theory of future market and spot market, it takes a further analysis of Robert and Nir's study of backwardation in oil future markets. By data acquisition and processing, descriptive statistics and time series analysis, it investigates the relationship between backwardation and the equilibrium of oil future prices and spot prices.

本文根据期货和现货的相关理论研究，以Robert和Nir对石油期货市场延期交割费的研究为基础，采用数据收集、对比统计分析和时间序列分析的方法，建立模型进行实证分析，对石油期货市场延期交割费的相关问题进行了研究。

Bar Code Data Acquisition and Control System is a very important in automatic product line.

生产物流条码数据采集与控制是自动化生产线中十分重要的环节。

Of release ,the USB advantage of high baud rate is more obvious in the data acquisition system ,it will widely use in the more deep level of structure at the same time.

特别是随着 USB 2.0的推出， USB 的高传输速率必将使其在数据采集系统中的优势更加明显，同时会使其在更广阔的领域得到更深层次地应用。

Since the highly accurate RF field was significant to the image reconstruction of parallel data acquisition and surface coil array design, Biot-Savart Law was applied to calculate the magnetic field of surface coil. Then the sensitivity of the RF receiver coil was presented by Biot-Savart Law and Ansoft HFSS respectively.

论文用Biot-Savart定律计算了表面线圈的场；并分别用Biot-Savart定律和高频电磁场仿真软件Ansoft HFSS给出了表面线圈灵敏度函数的分布，讨论了高频效应对线圈灵敏度函数的影响。

Use nationalization degree and the relationship that commercialize degree, condition of calculable market economy plays scope of optimal and state-owned economy.

利用国有化程度与市场化程度的关系，可计算市场经济条件下最佳国有经济规模。

The kinds of extractant also effected desulfurization rate .

萃取剂对脱硫率的影响也很大，乙二胺的萃取效果优于甲醇的。