Hardware implementation of infinite impulse response anti‐notch filter for exon region identification in eukaryotic genes

2020 ◽  
Vol 48 (12) ◽  
pp. 2242-2256
Author(s):  
Vikas Pathak ◽  
Satyasai Jagannath Nanda ◽  
Amit Mahesh Joshi ◽  
Sitanshu Sekhar Sahu
Keyword(s):  
Impulse Response ◽  
Hardware Implementation ◽  
Notch Filter ◽  
Infinite Impulse Response ◽  
Eukaryotic Genes ◽  
Exon Region

HARDWARE IMPLEMENTATION OF FRACTIONAL-ORDER SYSTEMS AS INFINITE IMPULSE RESPONSE FILTERS

2006 ◽  
Vol 39 (11) ◽  
pp. 408-413 ◽  
Author(s):  
C.X. Jiang ◽  
J.L. Adams ◽  
J.E. Carletta ◽  
T.T. Hartley
Keyword(s):  
Impulse Response ◽  
Fractional Order ◽  
Hardware Implementation ◽  
Infinite Impulse Response ◽  
Fractional Order Systems ◽  
Infinite Impulse Response Filters ◽  
Impulse Response Filters

scholarly journals Digital Finite Impulse Response Notch Filter with Non-Zero Initial Conditions, Based on an Infinite Impulse Response Prototype Filter

2012 ◽  
Vol 19 (4) ◽  
pp. 767-776 ◽  
Author(s):  
Sławomir Kocoń ◽  
Jacek Piskorowski
Keyword(s):  
Impulse Response ◽  
Narrow Band ◽  
Finite Impulse Response ◽  
Initial Conditions ◽  
Notch Filter ◽  
Infinite Impulse Response ◽  
Fir Filters ◽  
Ecg Signals ◽  
Prototype Filter ◽  
Power Line Noise

Abstract In this paper a concept of finite impulse response (FIR) narrow band-stop (notch) filter with non-zero initial conditions, based on infinite impulse response (IIR) prototype filter, is proposed. The filter described in this paper is used to suppress power line noise from ECG signals. In order to reduce the transient response of the proposed FIR notch filter, optimal initial conditions for the filter have been determined. The algorithm for finding the length of the initial conditions vector is presented. The proposed values of the length of initial conditions vector, for several ECG signals and interfering frequencies, are calculated. The proposed filters are tested using various ECG signals. Computer simulations demonstrate that the proposed FIR filters outperform traditional FIR filters with initial conditions set to zero.

scholarly journals Time-Varying IIR Notch Filter with Reduced Transient Response Based on the Bézier Curve Pole Radius Variability

2019 ◽  
Vol 9 (7) ◽  
pp. 1309
Author(s):  
Sławomir Kocoń ◽  
Jacek Piskorowski
Keyword(s):  
Impulse Response ◽  
Transient Response ◽  
Narrow Band ◽  
Notch Filter ◽  
Infinite Impulse Response ◽  
Time Varying ◽  
Parametric Curve ◽  
Ecg Signals ◽  
Powerline Interference ◽  
Time Invariant

In this paper a concept of the second order digital infinite impulse response narrow band-reject filter with reduced transient response is proposed. In order to suppress the transient response of the considered infinite impulse response (IIR) notch filter its pole radius is temporarily varied in time using the Bézier parametric curve. Computer simulations verifying the effectiveness of the proposed pole-radius-varying notch filter are presented and compared to the performance of the traditional time-invariant filter using ECG signals distorted by unwanted powerline interference.

Fixed-Point Implementation of Infinite Impulse Response Notch Filters

2010 ◽  
Vol 17 (2) ◽  
Author(s):  
Eduardo Pinheiro ◽  
Octavian Postolache ◽  
Pedro Girão
Keyword(s):  
Fixed Point ◽  
Impulse Response ◽  
Infinite Impulse Response ◽  
Notch Filters

scholarly journals NANO-studio, the design environment of filter banks implemented in standard CMOS technology

2021 ◽  
Author(s):  
Andrzej Handkiewicz ◽  
Mariusz Naumowicz
Keyword(s):  
Impulse Response ◽  
Filter Banks ◽  
Finite Impulse Response ◽  
Infinite Impulse Response ◽  
Cmos Process ◽  
Digital Cmos ◽  
Additional Advantage ◽  
Analysis And Synthesis ◽  
Optimization Parameters ◽  
Synthesis Filter

AbstractThe paper presents a method of optimizing frequency characteristics of filter banks in terms of their implementation in digital CMOS technologies in nanoscale. Usability of such filters is demonstrated by frequency-interleaved (FI) analog-to-digital converters (ADC). An analysis filter present in these converters was designed in switched-current technique. However, due to huge technological pitch of standard digital CMOS process in nanoscale, its characteristics substantially deviate from the required ones. NANO-studio environment presented in the paper allows adjustment, with transistor channel sizes as optimization parameters. The same environment is used at designing a digital synthesis filter, whereas optimization parameters are input and output conductances, gyration transconductances and capacitances of a prototype circuit. Transition between analog s and digital z domains is done by means of bilinear transformation. Assuming a lossless gyrator-capacitor (gC) multiport network as a prototype circuit, both for analysis and synthesis filter banks in FI ADC, is an implementation of the strategy to design filters with low sensitivity to parameter changes. An additional advantage is designing the synthesis filter as stable infinite impulse response (IIR) instead of commonly used finite impulse response (FIR) filters. It provides several dozen-fold saving in the number of applied multipliers.. The analysis and synthesis filters in FI ADC are implemented as filter pairs. An additional example of three-filter bank demonstrates versatility of NANO-studio software.

A numerical and experimental implementation and integration of Steiglitz–McBride algorithm with the frequency domain IIR filtering technique for active vibration control

2016 ◽  
Vol 24 (6) ◽  
pp. 1086-1100
Author(s):  
Utku Boz ◽  
Ipek Basdogan
Keyword(s):  
Computational Complexity ◽  
Vibration Control ◽  
Frequency Domain ◽  
Impulse Response ◽  
Time Domain ◽  
Vibration Suppression ◽  
Active Vibration Control ◽  
Infinite Impulse Response ◽  
Iir Filter ◽  
Active Vibration

In adaptive control applications for noise and vibration, finite ımpulse response (FIR) or ınfinite ımpulse response (IIR) filter structures are used for online adaptation of the controller parameters. IIR filters offer the advantage of representing dynamics of the controller with smaller number of filter parameters than with FIR filters. However, the possibility of instability and convergence to suboptimal solutions are the main drawbacks of such controllers. An IIR filtering-based Steiglitz–McBride (SM) algorithm offers nearly-optimal solutions. However, real-time implementation of the SM algorithm has never been explored and application of the algorithm is limited to numerical studies for active vibration control. Furthermore, the prefiltering procedure of the SM increases the computational complexity of the algorithm in comparison to other IIR filtering-based algorithms. Based on the lack of studies about the SM in the literature, an SM time-domain algorithm for AVC was implemented both numerically and experimentally in this study. A methodology that integrates frequency domain IIR filtering techniques with the classic SM time-domain algorithm is proposed to decrease the computational complexity. Results of the proposed approach are compared with the classical SM algorithm. Both SM and the proposed approach offer multimodal vibration suppression and it is possible to predict the performance of the controller via simulations. The proposed hybrid approach ensures similar vibration suppression performance compared to the classical SM and offers computational advantage as the number of control filter parameters increases.

Sign in / Sign up

Export Citation Format

Share Document