数字数据

A real-time interferometric method for testing asphere was proposed to measure aspherical surface with small asphericity without other null optics.

对非球面度较小的非球面，直接利用标准球面镜作为参考表面，通过数字干涉仪可以测得全孔径位相分布，将所得的数据剔除参考球面波相对理论非球面的偏差，并运用最小二乘拟合求得机构定位误差，消去此误差，即可获得真实的面形信息。

Since digitized multi-media information especially the figure video frequency and audible signal data are special ample,if we don't carry out effective compression, it can be difficult to get actual application.

由于数字化的多媒体信息尤其是数字视频、音频信号的数据量特别庞大，如果不对其进行有效的压缩就难以得到实际的应用。

So, we combine CobraNet audio network technology, data transmitting technology, MCU technology and FPGA technology to develop interface and program of MCU, controlling PCB board, A/D converter PCB board, D/A converter PCB board, digital audio receive PCB board. At last, we construct a audio network and test it's performances.

本文紧密结合CobraNet 音频网络技术、数据传输技术、单片机技术和FPGA 技术，从事了单片机接口及控制程序设计、控制板设计、A/D 转换插卡设计、D/A 转换插卡设计、数字音频信号收发插卡设计，开发出了一系列音频网络设备，并组网测试。

CPLD is the core of the sampling audio board, which converts the analog audio signal in every channel to digital audio signal, then stores the audio data in the data buffer.

音频采集板以CPLD为核心，主要将各路模拟音频信号转换成数字音频信号，然后存入数据缓冲区。

Equipped with AT89C51,the temperature sensor and the modulus convertor and coordinated by soft and hard wares,the system can fufil the instantaneous gathering of multichannel temperature signal,then,by meaus of asynchronous string communication,send the digital signal to PC which can separately display the instantaneous value and the average value of each channel temperature in bar diagram and weblike form,and print the temperature curve graph through data scale transferring,analyzing,and collating.

该系统运用单片机AT89C51、温度传感器保温器及模数转换器，通过软硬件的配合，实现了多路温度信号的实时采集，用异步串行通信发送数字信号到PC机，PC机经过数据的标度转换、分析、整理，分别用棒状图和网状表格显示各路温度瞬时值和平均值，打印出静态降温调温曲线图。

West Xia image resources: 6,000 pages of digital image resources; provision of services including bibliotheca, the original images and research paper data

西夏影像资源库：有6000页影像数字资源，提供服务，其中含书目、原件影像、研究论文数据

This is a convenient form in which to examine binary data because it collects 4 binary digits per hexadecimal digit.

这是一个方便的，表示二进制数据的形式因为每个十六进制数的数字由4 个二进制数集合而成。

XC68HC11F1FN Pinout:(1) Power saving driver (2) Built in DA converter accepting 6-bit digital input (for 262,144 colors)(3) Choice of 360 and 324 drive outputs (4) Input data bus at pixel level (5) Choice of output data format: gray scale or binary (6) Eleven reference voltage inputs for producing 10 segment gamma adjustment graph.

XC68HC11F1FN引脚说明：（1）省电驱动程序（2）内置DA转换器接受6位数字输入（为262，144色）（3）选择360和324驱动器输出（4）输入的像素数据总线一级（5）输出数据格式选择：灰阶或二进制（6）11参考生产10段伽玛调整图形电压输入。

They gather all the data they can, not just performance statistics and biographical details but also...

他们竭尽所能收集到的数据中，不仅包括工作绩效统计数字，人的成长细节，而且还包括……2007 阅读

Based on the date structure of image, the image has been divided into bit planes. The visual information and noise in each bit plane are quite different.

从数字图像的数据比特结构出发，将图像划分为多个比特层，各比特层包含的视觉信息和噪声是各不相同的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。