A pole controlled IIR ADF for system identification

Author

Takumi, Ichi ; Kanemitsu, Iwao ; Hata, Masayasu

Author_Institution

Dept. of Intelligence & Comput. Sci., Nagoya Inst. of Technol., Japan

fYear

1991

fDate

28 Oct-1 Nov 1991

Firstpage

1887

Abstract

The authors propose pole controlled infinite impulse response (IIR) adaptive digital filters (ADFs) and show their pole controllability with trajectories of poles on the MSE (mean square error) surface. The proposed IIR ADF consists of an FIR (finite impulse response) part and an IIR part. The FIR part identifies flat delay and responses of the echo which comes from poles near the origin of the z-plane. The IIR part consists of several second-order IIR filters connected in parallel. The filter sections are able to operate mutually independently. This type of IIR ADF has no stability problem in controlling the pole location, since the ADF consists of stable biquad sections or second-order IIR sections. Simulation results show that the proposed IIR ADF has excellent pole controllability

Keywords

adaptive filters; digital filters; identification; poles and zeros; FIR; IIR filter; flat delay; pole controllability; pole controlled infinite impulse response adaptive digital filter; stability; Adaptive control; Control systems; Controllability; Delay; Digital filters; Finite impulse response filter; IIR filters; Mean square error methods; Programmable control; System identification;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on

Conference_Location

Kobe

Print_ISBN

0-87942-688-8

Type

conf

DOI

10.1109/IECON.1991.239054

Filename

239054