曲阜师范大学学报（自然科学版）2024，Vol.50Issue(3)：73-80,8.DOI:10.3969/j.issn.1001-5337.2024.3.073
一种带控制端的二次校正滤波器
Secondary self-tuning filter with control terminal
摘要
Abstract
A kind of secondary self-tuning filter with control terminal is proposed,which can achieve self-tuning filtering under both stable and unstable system conditions.For stable systems,it is transformed into an auto regressive moving average(ARMA)model for self-tuning filtering.For unstable systems caused by parameter issues,the critical parameters can be decomposed into the sum of bounded wandering parameters 1 and fixed or slowly changing wandering parameters 2.That is,the system is transformed into a combination of a stable system under the action of wandering parameter 1 and a system that can be sec-ondarily corrected through the control terminal.By setting control criteria,linking state values and the control side,estimating the control coefficients of the control terminal using the method of correlation function,and feeding back the secondary correction values of the control side to the steady-state filter(or forecaster),a relatively stable self-tuning filtering within a certain range is achieved.The effectiveness of the method is verified through a simulation example.关键词
控制端/二次校正/滤波/自回归滑动平均模型/游离参数/相关函数法Key words
control terminal/secondary self-tuning/filter/auto regressive moving average model/wandering parameter/correlation function method分类
信息技术与安全科学引用本文复制引用
李恒..一种带控制端的二次校正滤波器[J].曲阜师范大学学报（自然科学版）,2024,50(3):73-80,8.基金项目
国家自然科学基金(61906044) （61906044）
安徽省高校科研重点项目(2023AH050428,KJ2020A0536) （2023AH050428,KJ2020A0536）
安徽省教研项目(2022jyxm1170) （2022jyxm1170）
安徽省智能计算与信创应用工程研究中心电子信息高峰培育学科课题(ICII202405). （ICII202405）
