扫描

In this thesis, we present a new channel scan method called "random scan" to reduce the delay. The scheme divides the beacon interval into several sections. In each beacon interval, only one section will be scanned and it will take multiple beacon intervals to scan all the section to cover the entire beacon interval.

在本论文我们提出一个减少IEEE 802.11无线网路之漫游所造成服务中断的机制称为随机扫描，此机制将标记间隔切割成数个区段，在每个标记间隔中，只对一个区段进行扫描，剩下的时间可继续正常的传输，以降低服务被中断的时间。

Time is always used as the most important parameter in the current network security visualization techniques on port scan.This makes the slow scan, the dynamic or random scan, concealed scan and spoofed scan hard to detect, and the detection results of the related security anomalies such as DDoS, worms, Trojans etc are bad too. Therefore, a novel network security visualization method for slow scan, concealed scan etc is proposed in this paper.

目前基于端口扫描的网络安全可视化技术常常以时间作为最重要参数指标，往往只能检测那些较快速地扫描行为，对强动态性、强随机性和强隐蔽性的与端口有关的安全事件如DDoS、蠕虫病毒、木马等效果并不好。

The novel video data packeting algorithm based on scattered macroblocks and spirally scan order avoids limitations of traditional raster scan order.

同时，本文针对传统光栅扫描方式的局限性，融合离散化宏块和螺旋扫描算法，提出了一种新的视频数据打包算法。

98 Raster scan: A mapping of a rectangular two-dimensional pattern to a one-dimensional pattern such that the first entries in the one-dimensional pattern are from the first top row of the two-dimensional pattern scanned from left to right, followed similarly by the second, third, etc.

光栅扫描：将二维矩形映射到一维。一维的开始为二维的顶行，按照自左至右的方式依次扫描，第2、3…。。

As a very crude approach to reconstructing a scan raster on the TV tube, these pulses can be stripped off and individually utilized to trigger a pair of single sweep generators.

作为一种非常粗糙的重建电视显像管扫描光栅的方法，这些脉冲可以剥离出来单独用于触发一对扫描发生器。

The paper further realizes a hardware accelerate boundary-scan controller to improve the performance of the remote experiment system. The controller can realize the process of "configuration" and "verify"automatically without the control of CPU. The controllers operation in the remote experiment system can reach the expected goal. By performance analysis, we conclude that hardware accelerate boundary-scan controller is significant faster than that realized with software.

从提升远程实验系统性能出发，本文进一步设计实现了一个硬件加速的边界扫描控制器，该控制器能够完成对目标FPGA的"配置"和"验证"，执行过程中不需要CPU干预，在整个远程实验系统联合调试的过程中，运行完全正常，达到了预期目标，并且通过性能分析证明，硬件加速的边界扫描控制器相比于软件实现，速度有显著提升。

In the paper, not only the principle of the algorithm is introduced in brief, but also the algorithm of CORDIC is applied to the transform of rectangular coordinate system--polar coordinates system.

在设计B 型超声诊断仪中数字扫描变换器的过程中，坐标变换和数据插补是关键的技术，本研究论述了应用在数字扫描变换器中的一种新的算法——CORDIC 算法。

The system makes use of the high-speed synchronous shoot and digital image processing technique to make the presswork figure redisplay stationary in the display apparatus.

本系统采用高速高精度的工业彩色CCD摄像机，在横向移动扫描装置和纵向扫描控制算法以及同步发生装置和同步瞬态采集方法的控制下，实时地摄取印刷品图像，并将视频信号输入到彩色图像采集卡。

A signal will be generated which is only one increment wide when the encoder head passes the reference mark on the scale.

当扫描头通过参考标记时，扫描头会输出一个和计数脉冲相同宽度的脉冲。

In order to make the scan data of cell or line detectors include corresponding space information and enhance the resolvability of infrared image, the reconstruction strategy of infrared image was proposed. It was based on the mechanism of variable row frequency sampling under cone scan.

为了使一些单元或线列探测器获得的扫描数据含有相应的空间信息，进而提高获得红外热像的分辨率，提出了圆锥扫描机制下基于变行频采样机理的红外图像完整重建策略。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。