DIGITAL FILTER -VLSI PROJECT


Padding point extrapolation techniques for the Butterworth digital filter
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Biomechanical studies of movement kinematics and kinetics often involve the measurement of analog quantities through discrete sampling of the signal at some regular interval. The digital data which result can, in most cases, adequately represent the original signal

Practical analog and digital filter design
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This book was intentionally written to be different from other filter design books in two important ways. First, the most common analog and digital filter design and implementation methods are covered in a no-nonsense manner. All important derivations and descriptions

Least-squares fit with digital filter : a status report
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The technique of incorporating digital filtering within a linear least-squares fitting procedure was initially conceived and reported in 1973. At this time, it was one of the very few x-ray analysis procedures which attempted to perform quantitative analysis on spectra containing

Suppression of baseline wander and power line interference in ECG using digital IIR filter
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Electrocardiogram has considerable diagnostic significance, and application of ECG monitoring are diverse and in wide use. For diagnostic-quality ECG recordings, signal acquisition must be noise free. The signal acquisition is susceptible to the interference from

8 channel Digital Filter Bank for Hearing Aid Use: Preliminary Results
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ABSTRACT A digital 8-channel signal processing system has been implemented using a TMS 320C25 signal processor. Tests with hearing-impaired subjects showed that the system allows a better fit to a specified frequency response than when using conventional aids with

Digital Filter vs FFT techniques for damping measurements
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Several methods for measuring damping are summarized in this article with respect to their advantages and disadvantages. The use of Digital Filters (DF) and the Fast Fourier Transform (FFT) are compared. In general, FFT analysis is best suited for heavily damped

The digital TV filter and nonlinear denoising
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Motivated by the classical TV (total variation) restoration model, we propose a new nonlinear filter the digital TV filter for denoising and enhancing digital images, or more generally, data living on graphs. The digital TV filter is a data dependent lowpass filter , capable of

Digital elliptic filter application for noise reduction in ECG signal.
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Digital filters plays very important role in the processing of the low frequency signals. Numbers of biomedical signals are of the low frequency. The ECG signal, which preliminary represents the condition of the heart. It has the frequency range form. 5 Hz to 100Hz

Design and implementation of digital FIR equiripple notch filter on ECG signal for removal of power line interference
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Filtering of power line interference is very meaningful in the measurement of biomedical events recording, particularly in the case of recording signals as weak as the ECG. The available filters for power line interference either need a reference channel or regard the

Wave digital filter adaptors for arbitrary topologies and multiport linear elements
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ABSTRACT We present a Modified-Nodal-Analysis-derived method for developing Wave Digital Filter (WDF) adaptors corresponding to complicated (non-series/parallel) topologies that may include multiport linear elements (eg controlled sources and transformers). A

Introduction to digital filter theory
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This manuscript is an outgrowth of notes for a course in computer music at Stanford University. It provides an elementary introduction to the analysis of digital filters, with emphasis on understanding spectral modifications caused by general filtering algorithms.(3)

On the frequency response of M-channel mixed analog and digital maximally decimated filter banks
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Mixed analog/ digital maximally decimated filter banks find applications in high-speed analog-to- digital conversion. Such filter banks use an analog analysis filter bank and a digital synthesis filter bank. In the design of the filter banks, a distortion (transfer) function

Assimilation of radar reflectivity data using a diabatic digital filter within the Rapid Update Cycle
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Despite a significant research effort over the past two decades, the prediction of convective storms and the associated warm season precipitation prediction problem remains a formidable modeling and assimilation challenge. The large forecast uncertainty associated The use of digital filtering raises a number of problems. We list the main ones : 1) design of sufficiently fast digital filters for real-time systems; 2) attainment of required accuracy and frequency characteristics. The DF speed can be substantially increased by combining

Digital filter for cochlear implant implemented on a field-programmable gate array
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Gate Arrays (FPGAs) with hardware support for multiplication opens an opportunity to recreate a significant portion of the front end of a human cochlea using this technology. In this paper we describe the implementation of the cochlear filter and show that it is entirely

Digital pulse-shaping filter basics
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Data transmission systems that must operate in a bandwidthlimited environment must contend with the fact that constraining the bandwidth of the transmitted signal necessarily increases the likelihood of a decoding error at the receiver. Bandwidth limited systems often

Analysis of digital IIR filter with Labview
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Aiming at importance of virtual instruments in the field of Digital Signal Processing, a digital IIR Filter system is developed using National Instruments (NI) data LabVIEW software package. All the types of IIR filters like Butterworth filters, Chebyshev filters, inverse

Non-linear digital implementation of the Moog ladder filter
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This paper presents a non-linear digital implementation of the Moog ladder filter . The implementation is relatively efficient and suitable for inclusion into real-time systems, for example virtual analog synthesizers. The analog circuit is analyzed to produce a differential

Heuristic search method for digital IIR filter design
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The paper develops innovative methodology for robust and stable design of digital infinite impulse response (IIR) filters using a heuristic search method. The proposed heuristic search method enhances the capability to explore and exploit the search space locally as

FIR equiripple digital filter for reduction of power line interference in the ECG signal
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Present paper deals with design and development of digital FIR equiripple filter . The basic ECG has the frequency range from. 5Hz to 100Hz. Artifacts plays the vital role in the processing of the ECG signal. It becomes difficult for the Specialist to diagnose the diseases



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