The proposed adaptive algorithm is for a second-order adaptive IIR notch filter based on gradient algorithm. The simulation results shown that the proposed algorithm provides fast convergence speed, and has low steady-state mean square error and low variance of filter coefficient....
A Novel Adaptive IIR Notch Filter for Frequency Estimation and Tracking Xiaobo Tan Institute of Communication Engineering PLA Univ. of Sc..
In this paper, a new class of a variable step-size algorithm for a second-order lattice form structure adaptive IIR notch filter for detection of sinusoids in noise environments is presented. The proposed algorithm is adjusting two variable coefficients of the adaptive IIR notch filter: one is ...
A New Algorithm for Howling Detection
Frequency tracking using constrained adaptive notch filters synthesised from allpass sections J.F. Chicharo et al. Gradient-based adaptive IIR notch filtering for frequency estimation IEEE Trans. Acoust. Speech Signal Process. (1990) M.V. Dragošević Stationary points of the recursive generalized ...
Thus in this work, we present a generalized design framework for IIR multiple notch filters whereby we aim to: a) deduce an improved design process of the all-pass filter-based method, b) maximize the availability of phase information of all-pass filter, and c) introduce selection mechanisms...
a derivative filter that allows to highlight the QRS complexes; a signal amplitude squaring to enhance the high frequencies; a moving window integration with a window length of 30 samples to obtain information on the slope of the R wave; an adaptive thresholding with a decision rule algorithm...
In this paper, we propose a new frequency estimation method for a sinusoidally modulated signal. The proposed method is constructed by three processing; the noise reduction, the frequency estimation, the updating of the noise reduction filter. In the noise reduction, we utilize an adaptive IIR ban...
Stability and Bias Analysis for Adaptive Normal State-Space Notch Digital Filters This paper deals with an adaptive notch digital filter that employs the normal state-space realization of a single frequency second-order IIR notch digital... Yoichi Hinamoto,Shotaro Nishimura - 会议论文 被引量: 0发...
Kuo et al., “New Adaptive IIR Notch Filter and Its Application to Howling Control in Speakerphone System,” Electronics Letters, 28(8): 764-766 (1992). Kuo et al., “Nonlinear Adaptive Bilinear Filters for Active Noise Control Systems,” IEEE Trans. on Circuits and Systems, Part I: Re...