舰载光电伺服设备的系统辨识研究

周俊鹏; 李焱; 王一卉; 陈娟

doi:10.3788/YJYXS20142905.0721

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舰载光电伺服设备的系统辨识研究

器件驱动与控制 | 更新时间：2020-08-12

- 舰载光电伺服设备的系统辨识研究
- Shipboard photoelectric equipment servo system identification
- 液晶与显示 2014年29卷第5期页码：721-727
- 作者机构：
  
  长春工业大学电气与电子工程学院,吉林长春,130012
- 作者简介：
- 基金信息：
  
  国家863高技术研究发展计划（No.2006aa701410）();中国科学院知识创新工程领域前沿资助项目()
- DOI：10.3788/YJYXS20142905.0721
  中图分类号： TM383.4
- 收稿日期：2014-01-28，
  
  修回日期：2014-02-21，
  
  纸质出版日期：2014-10-05
- 稿件说明：
移动端阅览
周俊鹏, 李焱, 王一卉, 陈娟. 舰载光电伺服设备的系统辨识研究[J]. 液晶与显示, 2014,29(5): 721-727

ZHOU Jun-peng, LI Yan, WANG Yi-hui, CHEN Jun. Shipboard photoelectric equipment servo system identification[J]. , 2014,29(5): 721-727
周俊鹏, 李焱, 王一卉, 陈娟. 舰载光电伺服设备的系统辨识研究[J]. 液晶与显示, 2014,29(5): 721-727 DOI： 10.3788/YJYXS20142905.0721.

ZHOU Jun-peng, LI Yan, WANG Yi-hui, CHEN Jun. Shipboard photoelectric equipment servo system identification[J]. , 2014,29(5): 721-727 DOI： 10.3788/YJYXS20142905.0721.

摘要

系统辩识即获取电机机械时间常数

和对应的固有放大倍数

。舰载光电系统由于受到横摇、纵摇、艏摇的扰动，其系统辩识的可信度及精度直接影响到调节器参数的设定，从而对稳态和动态精度会有很大的影响。常规公式法求电机机械时间常数在实际应用中非常不便，并且大多数场合不能求得

。本文以PC104硬件平台为依托，推导出的近似逼近e指数函数作为阶跃法获取系统辨识的理论依据，并设计了友好的人机交互界面可以方便的显示、修改系统辩识的结果。试验分析表明，应用Origin拟合e指数函数使阶跃法得到的

和

拟合可信度达到96%以上，其拟合误差小于0.1，精度完全满足使用要求。解决了实际工程中获取

和

精度低、可信度不高的难题。此方法成功地应用在项目中，并对求得电机机械时间常数有很好的通用性和借鉴性。

Abstract

Obtaining the motor mechanical time constant

and inherent magnification

is knowed as system identify. Ship-borne photoelectric system was disturbed due to the roll

pitch

bow wave disturbance

and the reliability and accuracy of the system discerniblile directly affect the regulator parameter setting.Thereby

the steady state and dynamic accuracy will confront serious influence. Conventional formula method for motor mechanical time constant in the practical application is very inconvenient

and most of the occasions for

can't be gotten. Based on PC104 hardware platform

this paper deduced the approximate approach e exponential function as step method for system identification that is the theoretical basis

designed a friendly human-computer interaction interface to display and modify the result of the system on discerniblile easily. By test analysis: applying Origin fitting e exponential function can make the step method of

and

fitting credibility more than 96%

the fitting error is less than 0.1

accuracy can meet the needs completely. The problem of low accuracy and credibility has been solved for getting

and

in the practical engineering.This method is successfully used in some projects

and the results show that the method is feasible and practical.

关键词

Keywords

references

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