نتایج جستجو برای: iir digital filter

تعداد نتایج: 422118  

2015
Rajesh Mehra Bharti Thakur

In this paper, an Infinite Impulse Response (IIR) filter has been designed and simulated on an Field Programmable Gate Arrays (FPGA). The implementation is based on Multiply Add and Accumulate (MAC) algorithm which uses multiply operations for design implementation. Parallel Pipelined structure is used to implement the proposed IIR Filter taking optimal advantage of the look up table of target ...

1998
Timo I. Laakso Vesa Välimäki

A measure for the effective length of the impulse response of a stable recursive digital filter based on accumulated energy is proposed. A general definition and a simple algorithm for its evaluation are introduced, and closed-form expressions are derived for first-order IIR filters. The effect of zeros on the effective length is analyzed. An upper bound for the effective length of higher-order...

2002
Michael Weeks Baoan Wang

Filters are used to implement signal transforms, and filter design is a very important part of the signal processing field. There are currently 2 types of filters available: the finite impulse response (FIR) filter, and the infinite impulse response (IIR) filter. While FIR filters have desirable traits such as stability (an absence of poles), IIR filters are able to generate outputs more effici...

2011
Yi-Chieh Huang Shen-Iuan Liu

To ensure the signal integrity over a lossy channel, an analog equalizer and/or a decision-feedback equalizer (DFE) [2-6] are widely adopted in high-speed data transmission. An adaptive analog equalizer or adaptive DFE is also attractive to compensate the frequency-dependent loss due to the different channel lengths and environment variations. Conventionally, a multiple-tap DFE is adopted to co...

Journal: :IEEE Trans. Acoustics, Speech, and Signal Processing 1986
Palghat Vaidyanathan Sanjit K. Mitra Yrjö Neuvo

A new implementation of an IIR digital filter transfer function is presented that is structurally passive and, hence, has extremely low pass-band sensitivity. The structure is based on a simple parallel interconnection of two all-pass sections, with each section implemented in a structurally lossless manner. The structure shares a number of properties in common with wave lattice digital filters...

2015
Jae Mok Ahn

OBJECTIVES Acceleration plethysmogram (APG) obtained from the second derivative of photoplethysmography (PPG) is used to predict risk factors for atherosclerosis with age. This technique is promising for early screening of atherosclerotic pathologies. However, extraction of the wave indices of APG signals measured from the fingertip is challenging. In this paper, the development of a wave detec...

2005
Sanja Damjanovic Ljiljana Milic

This paper considers the wavelet transform generated by iterating orthonormal power-complementary IIR filter pairs with perfect reconstruction properties. For the implementation of complementary IIR filter pair, the realization structure based on two allpass subfilters in parallel connection is used. The decomposition and reconstruction properties of the example wavelet banks composed of the fi...

2011
Cheol Cho Dae Yeon Yeo Young Jin Lee Kwon Soon Lee

This paper proposes a novel active noise control (ANC) approach that uses an IIR filter and neural network techniques to effectively reduce interior noise. We construct a multiple-channel IIR filter module which is a linearly augmented framework with a generic IIR model to generate a primary control signal. A three-layer perceptron neural network is employed for establishing a secondary-path mo...

Journal: :Acoustics 2023

The use of a filter bank IIR filters for the spectral decomposition and analysis signals has been popular many years. As such, new filter-bank resonator-based structure, representing an extremely hardware-efficient received good deal attention. Recently, multiple-resonator (MR)-based general cascaded-resonator (CR)-based have proposed. In comparison to single-resonator-based analyzers, analyzer...

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