闭环系统的过采样辨识方法及其估计精度分析

来源 :上海大学学报(英文版) | 被引量 : 0次 | 上传用户:yqhbyctu
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
A new identification method for a linear discrete-time closed-loop system is proposed based on an output over-sampling scheme. When the system outputs are over-sampled the new output sequences would contain more information about the plant structure. Using general least squares method (GLS) the plant over-sampled model should be recognized. Then the original plant model should be obtained by its relationship with the over-sampled model. Compared with conventional approaches the advantage of the new method is that even if the ordinary identifiability conditions are not satisfied, a close-loop system can be identified by using the oversampled output without utilizing any external test signal. Accuracy analysis shows the relationship between the estimation error and the over-sampling rate. Numerical simulation illustrates its effectiveness.
其他文献
本文研究三相电动机节能器的电路和节能原理。 This paper studies the three-phase motor energy-saving circuit and energy-saving principle.
The analytical expressions was deduced for the inviscid flow field induced by the double vortex filaments that move uniformly and rigidly without change of its
一些观赏植物对室内污染空气具有一定的净化能力,它可以美化居室环境,调节空气湿度与温度,检测室内空气质量。本文重点介绍5种常见室内观赏植物怎样在改善居室环境,并着重介
在初中物理教学中,教师应该要有意识地加强对学生良好学习习惯和有效学习策略的培养和指导,使学生在学习和运用物理知识的过程中逐步学会如何去自主学习.
A new Kalman filtering algorithm based on estimation of spread spectrum signal before suppression of narrowband interference (NBI) in spread spectrum systems, u
As increase of disk access speed has far lagged the speed of processors and main memory, disk-scheduling performance, although less significant for personal use
This paper presents an improved error function of dithered signed-error constant modulus algorithm (IDSE-CMA) for blind multiuser interference suppression in DS
The downlink frame structure for beyond 3G mobile communication systems is presented. Beyond 3G systems utilize the OFDM technique. However, a problem encounter
前言在工业发达国家使用以微型计算机为中心的各种自动数据采集、处理系统用以对工业或科学实验过程的温度、压力、流量以及其它物理量进行测量、显示、打印、并给出报警信
Prehardened mold steel for plastic is the primary for manufacturing high quality plastic mold. With the rapid development of mold industry in our country, this