Adaptive centre-frequency bandpass state-space digital filters and their l2-sensitivity analysis

被引：0

作者：

Hinamoto, Yoichi ^{[1
]}

Doi, Akimitsu ^{[2
]}

机构：

[1] Natl Inst Technol, Kagawa Coll, Dept Elect & Comp Engn, Takamatsu, Japan

[2] Hiroshima Inst Technol, Dept Comp Sci, 2-1-1 Miyake,Saeki Ku, Hiroshima 7315193, Japan

来源：

SICE JOURNAL OF CONTROL MEASUREMENT AND SYSTEM INTEGRATION | 2025年 / 18卷 / 01期

关键词：

Adaptive centre-frequency; bandpass digital filter; gradient-based method; l(2)-sensitivity analysis; sign algorithm; state-space approach; IIR NOTCH FILTER; CONSTRAINED POLES; PERFORMANCE ANALYSIS; SINUSOIDAL SIGNAL; ALGORITHM; BEHAVIOR;

D O I：

10.1080/18824889.2024.2445373

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper explores an adaptive centre-frequency bandpass state-space digital filter by expanding a sign algorithm into the gradient-based method. To this end, a simple method for deriving a bandpass state-space digital filter with tuneable centre-frequency from a prototype low-pass filter and low-pass/bandpass transformation is presented. An adaptive iterative algorithm is then developed by expanding a sign algorithm into the gradient-based method. Also, l(2)-sensitivities for the bandpass state-space digital filter with tuneable centre-frequency are analysed where an l(2)-sensitivity measure for evaluating the whole l(2)-sensitivities is deduced. Numerical experiments are included to demonstrate the validity and effectiveness of the adaptive centre-frequency bandpass state-space digital filter and the l(2)-sensitivity analysis.

引用

页数：9

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