| 频域法辨识录象机伺服控制回路参数 |
| |
| 引用本文： | 陈莉,陈兆春,杨明杰.频域法辨识录象机伺服控制回路参数[J].清华大学学报(自然科学版),1997(10). |
| |
| 作者姓名： | 陈莉 陈兆春 杨明杰 |
| |
| 作者单位： | 清华大学电子工程系 |
| |
| 摘 要： | 针对录象机的伺服驱动系统及其ＩＣ的设计和测试问题，提出了一套基于Ｗｉｎｎｅｒ－Ｈｏｐ方程对录象机伺服控制系统进行频域在线辨识的方法。从理论上推导了伺服回路各典型元件的辨识模型，归纳和分析了伺服控制系统在不同状态下的构成，实测了磁鼓及主导轴伺服环路在ＰＡＬ和ＮＴＳＣ制式下不同状态的开环、闭环特性，采用在线频域响应法估计出磁鼓和主导轴伺服控制回路的增益及滤波器带宽参数。所得实验数据为中国设计和开发录象机提供了依据。
|
| 关 键 词： | 录象机 伺服控制 电气参数 在线频域辨识 |
Identification of parameters of the servo control loops of the VTR by frequency domain method |
| |
| Chen Li,Chen Zhaochun,Yang Mingjie.Identification of parameters of the servo control loops of the VTR by frequency domain method[J].Journal of Tsinghua University(Science and Technology),1997(10). |
| |
| Authors: | Chen Li Chen Zhaochun Yang Mingjie |
| |
| Institution: | Chen Li,Chen Zhaochun,Yang Mingjie Department of Electronic Engineering,Tsinghua University,Beijing 100084 |
| |
| Abstract: | For designing and testing of the video tape recorder(VTR) servo systems, the novel method based on Winner Hop equation for identification for parameters of the servo control loops of the VTR has been presented. The mathematical models of the servo control system are established. The open loop and closed loop frequency characteristic curves of the capstan and drum under the condition of recording and playing with PAL and NTSC systems are precisely measured. And on such a basis, the gains and the bandwidths of the filters of the servo control loops of the drum and capstan are entracted by the on line frequency response. The results from online frequency response may propose reliable reference to self design and develop VTR for China. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
