数据捕捉

Beijing 100084, China Abstract: The nephogram signal of FY-2B meteorological satellite is a burst QPSK modulated carrier, and the effect of the special preamble on the carrier recovery loop is analyzed in this paper.

摘 要："风云二号B星"气象卫星的原始云图数据是时分复用的突发载波调制信号，本文就其特殊的预告码对于载波恢复电路捕捉性能的影响进行了分析，并对具有不同类型和带宽的低通滤波器的载波恢复电路性能进行了仿真。

The nephogram signal of FY-2B meteorological satellite is a burst QPSK modulated carrier, and the effect of the special preamble on the carrier recovery loop is analyzed in this paper.

摘 要："风云二号B星"气象卫星的原始云图数据是时分复用的突发载波调制信号，本文就其特殊的预告码对于载波恢复电路捕捉性能的影响进行了分析，并对具有不同类型和带宽的低通滤波器的载波恢复电路性能进行了仿真。

By contrast, qSearch uses data from comScore's Global Network, which continuously captures the complete Internet activity, including search engine queries, of a representative cross-section of more than 1.5 million global Internet users at home, work, university and non-U...

相比之下，利用数据qsearchcomscore的全球网络，不断捕捉完成网上活动包括搜寻引擎疑问，一个代表断面全球互联网用户超过150万在家工作大学和非美

The data arrived on a radio signal so weak -- a ten quadrillionth of a watt -- that 38 giant radio antennas on four continents were used to catch Voyager's whispered message.

无线电信号送达的数据很弱——一瓦的百兆分之一。在四大洲用了三十八根巨型无线电天线才捕捉到"旅行者"耳语般的信息。

Read and write of flash disk as USB host.According to the request of this subject, the system hardware and software for the slave device, and the communication interface to the master PC are developed. Detailed works are as follows: in order to implement the measurement principle in the system, flow-liquid levelmethod is used;velocity of flow is measured through rotor Kinemometer;water level is surveyedvia RS485 interface and pressure sensor;the C8051F060 chip which is in high performance andintegration, produced by Silicon Laboratories Company as master chip is used to capture and measure the width of impulses, so singals of flow velocity are collected and disposed;the 4×4 matrix keyboard and LCD are used in the part of man-machine interface which are easy to input, legible to read, various to display, comfy to be accepted and plain to show measure and inquiry results;FRAM memory FM3164 is used to carry out the non-volatile memory of data and accurate real-time clock.;SL811HST chip is used as USB host which can read and write flash disk,thereby a kind of adscititious mass storage is accomplished .

根据研制任务的要求，课题期间主要完成了下位机系统硬件和软件，设计了与上位机的通讯界面，所做的具体工作包括：测量原理在系统中的实现，采用了流速—水位计算法，通过旋桨式流速仪来测量流速，通过RS485接口与压力变送器通讯测量水位；主控制芯片采用了Silicon Laboratories公司的高性能、高集成度C8051F060芯片，利用其捕捉测脉宽的特性，实现了流速信号的采集和处理；人机接口部分采用了4×4矩阵键盘和LCD显示，输入方便，读数清晰，显示多样化，信息量大，易于被用户接受，更直观地显示测量及查询结果；通过采用铁电存储器FM3164实现了数据的非易失性存储和精确的实时时钟；通过采用SL811HST芯片，实现了USB主机的功能，可读写U盘，从而实现了单片机的外挂式海量存储。

It can capture data produced from TV- tuners, video card VIVO and special cardfor video installation.

它能够捕捉到的数据产生的电视调谐器，视频卡的体内和特殊卡，视频安装。

Intelligent monitoring system is capable of real-time monitor every day, and automaticly analyses image from vidicon.

智能监控系统能够进行连续24小时的实时监控，并自动分析摄像机捕捉的图像数据。

As the two clusters that formed MACSJ0025 (each almost a whopping quadrillion times the mass of our Sun) merged at speeds of millions of kilometres per hour, hot gas in the two clusters collided and slowed down, but the dark matter passed right through this smash-up.

图中所示，蓝色的部份显示为暗物质，是由哈勃所得的数据以引力透镜效应的方法获取；而粉红色的部份则是正常物质，正常物质透过星系团的气体放出X射线所表现，并由钱德拉X射线天文台所捕捉。

Eliminating aliasing noise algorithm used in push broom CCD image gathering system is derived and optimized.

本文推导并优化了CCD图像捕捉系统中消欠采样噪声算法，提出新的CCD推扫和采样数据处理方法，在CCD只能有推扫方向位移的遥感成像应用条件下，消除了图像中的欠采样噪声。

Newsflashes﹐ commercial breaks, bits of info﹐ fragments of data﹐ alerts﹐ messages﹐signals picked up by chance during our daring our daily walks﹐ these things constitute the environment we move around in.

瞬间快讯，焦点，信息片段，短信，电子邮件，数据片段，提醒，信息，一些从我们的日常散步中偶然捕捉到的信号，构成了我们在其中演变的环境。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。