查询词典 tracking

The first one is Vector Pursuit which is based on Screw Theory. The second one is Replicate Line Method presented by this thesis which is presented according to the skid-steering property of track-laying mobile robot and the constraint of its working environment. Thirdly, use the path tracking method proposed by Kanayama for reference to control the robot moving for the current position to the desired position with the desired velocity, so make the path tracking process more precise.

然后从运动学方面，根据机器人当前位置与目标点的位置偏差和角度偏差，采用基于螺旋理论的向量追击法，以及本文根据履带式移动机器人运动特点和工作环境特点提出了的轨迹跟踪方法，折线法，来确定机器人的期望运动；再借鉴Kanayama提出的轨迹跟踪控制方法，对机器人以期望运动速度从当前位置运动到目标点的过程进行控制，从而进一步精确了跟踪过程。

Cost-effective and efficient tool to track the locations of mobile phones in a vehicle tracking system or in a buddy tracking website.

成本效益和效率的工具来跟踪的位置，移动电话的车辆追踪系统，或在朋友跟踪网站。

The article presents the developing condition of PWM and SVPWM first.Then the theory of SVPWM is discussed in detail.The SVPWM is based on the thought of magnetic chain tracking.It makes the ideal magnetic chain circle of three-phased sysmmetry electric motor supplied by three-phased sysmmetry sine wave voltage for basis,uses the practical magnetic chain vector formed by the different switch modes of three-phased inverter to track the basic magnetic chain circle.During the course of tracking,the inverter changes the switch modes properly to form the PWM waves.Then the modulation wave of SVPWM is analyzed in detail.The modulation wave of SVPWM is implicit,but the analogous modulation wave in A-B-C axis needs to be calculated in order to expose the internal relation of SVPWM and SPWM.That is to show the implicit modulation wave of SVPWM. SVPWM actually is a transformed SPWM ruly sampled by the modulation wave which is injected by the zero prefaces based on space vectors.

本文首先对脉宽调制技术的发展现状进行了综述，在此基础上分析了电压空间矢量脉宽调制技术的发展现状；接着对空间电压矢量脉宽调制技术的基本原理进行了详细的分析和推导，SVPWM是基于磁链追踪的思想，它以三相对称正弦波电压供电下三相对称电动机定子理想磁链圆为基准，由三相逆变器不同开关模式下所形成的实际磁链矢量来追踪基准磁链圆的，在追踪的过程中，逆变器的开关模式作适当的切换，从而形成PWM波；然后详细分析了电压空间矢量脉宽调制技术的调制波，虽然SVPWM法的调制波是隐含的，但是为了揭示SVPWM法与SPWM法的内在联系，需要求出SVPWM在A-B-C坐标系上的等效调制波，也就是将SVPWM的隐含调制波显化；SVPWM实质是一种基于空间矢量在三相正弦波中注入了零序分量的调制波进行规则采样的一种变形SPWM。

Based on the total technique request of the tank target auto-tracking system, this paper designs I/O board hardware circuit of the tank target auto-tracking system, and solves a communicated problem between the tank fire control computer and the tank fire control system, and realizes data communication between the local bus and the PCI bus.

根据坦克目标自动跟踪系统的总体技术要求，在基于 VxWorks嵌入式系统下，设计了坦克目标自动跟踪系统的 I/O板硬件电路；解决了坦克火控计算机与坦克火控系统之间的通信问题；实现了本地总线与 PCI总线之间的数据交换。

Through design, the text applying the parameter self-adjustable fuzzy PID controller to the position loop of servo system of radar, it has a kind very realistic meaning about improving the tracking speed and tracking precision, and completing the task of

将参数自整定模糊控制器应用到雷达伺服系统单脉冲跟踪位置回路的控制中，对于提高系统的跟踪速度和跟踪精度，实现对不同运动速度目标的测量，具有很好的现实意义。

Design of weld seam tracking fuzzy controlling system with self-adjusting parameters in arc welding;2. The present research status of the weld seam tracking technology was introduced in this paper.

介绍了焊缝跟踪技术的研究现状，分析了用于焊缝检测的传感器工作原理及其优缺点，重点论述了基于机器视觉的焊缝跟踪系统的硬件组成和图像处理的工作流程。

In this paper, a seam tracking system based on photoelectric sensor which consisted of a photoelectric sensor, a sub-system of control and executive machine is studied. And a set of seam tracking software is developed using assembly language for MSC-51 microcomputer.

论文设计并研制了一套光电传感器式焊缝自动跟踪系统，该系统由光电传感器、控制系统和执行机构等组成，并根据系统的要求开发了基于MSC-51单片机的跟踪系统软件。

Solar Tracking System" adapts the novel "biaxial realtime sun tracking technique to rotate the systems, optimizing the efficiency by following the sun so that the capacity of energy generation can be doulbed than that of the same-sized first generation silicon solar power system.

追日系统采用最新双轴即时追日技术转动，可追随太阳方向运转达到最大效能，约为第一代矽晶太阳能发电系统相同面积发电量的两倍，在地狭人稠的台湾具发展优势。

Can not be perfect tracking of a lover, but we can at least love tracking of a perfect mood to.

不能追求到一个完美的恋人，但我们至少可以追求到一种完美的爱的意境地。

An improved tracking differentiator is proposed based on the study of typical tracking differentiators.

在对典型跟踪微分器深入研究的基础上，提出一种改进的非线性跟踪微分器。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。