analog filter research papers
RESEARCH PAPERS

analog filter research papers




Practical Considerations in the Design of a Bandpass Filter for the LWA Analog Receiver
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In a design for the LWA analog receiver was suggested. In Section 6.4 of that document, a design for a bandpass filter was proposed which provided the required 20-80 MHz bandpass. However, that design did not use standard (commercially available) 

Revision of the Bandpass Filter for the LWA Analog Receiver
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In we revised the design of the bandpass filter (operating in 20-80 MHz) proposed in by using standard (commercially-available) components. We built a prototype of the receiver of the Long Wavelength Array (LWA) by replacing the filter sections of an existing receiver 

A 60–350 MHz programmable analog filter in a digital CMOS process
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ABSTRACT We present a programmable fourth-order Butterworth continuous-time filter with a bandwidth programmable from 60-350 MHz, implemented in a 0. 25µm digital CMOS process. It is intended for communication and mass storage applications. The filter has a 

Analog filter design based on evolutionary algorithms
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ABSTRACT This paper introduces some results, obtained by experiments with evolutionary algorithms in synthesis of passive LC filters. The aim of the presented experiments was to verify, if heuristic algorithms were able to successfully solve filter design problem including 

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 

Design and Realization of IIR Digital Band Stop Filter Using Modified Analog to Digital Mapping Technique
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Stop filter is one of the most important filter in various application. This may be of two types, Infinite Impulse Response (IIR) Band-Stop filter and the Finite Impulse Response (FIR) Band- Stop filter. In this paper, the realization and the design of IIR Band-Stop filter is 

Two-channel hybrid analog/digital filter banks with alias-free subbands
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ABSTRACT –This paper introduces hybrid analog/digital fil-ter banks with alias-free subbands. The aliasing at the output is small due to stopband attenuation of the individual filters and not due to cancellation, which is the case in maximally decimated filter banks. Thus, the 

Device Identification via Analog Signal Fingerprinting: A Matched Filter Approach.
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ABSTRACT As part of the Detecting Intrusions at Layer ONe (DILON) project, we show that Ethernet devices can be uniquely identified and tracked-using as few as 25 Ethernet frames-by analyzing variations in their analog signal caused by hardware and 

Sensitivity of hybrid filter banks A/D converters to analog realization errors and finite word length
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ABSTRACT This paper studies the sensitivity of hybrid filter banks (HFB) to analog inaccuracies and finite word implementation. It is shown that very small errors affecting very simple analog structures have a dramatic influence on the performances of the HFB. The 

On the frequency response of M-channel mixed analog and digital maximally decimatedfilter banks
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ABSTRACT 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 

Current Search and Applications in Analog Filter Design Problems
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ABSTRACT The AI (artificial intelligent) search techniques have become acceptable worldwide as the most efficient and powerful tools for various real-world problems. In this paper, a novel meta-heuristic optimization algorithm named the CS (current search) is proposed. 

Explicit transfer function of RC polyphase filter for wireless transceiver analog front-end
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 Page 5. 5 Features of RC Polyphase Filter ? Its input and output are complex signal. ? Passive RC analog filter ? One of key components in wireless transceiver analog front-end ,I, Q signal generation ,Image rejection ? Its explicit transfer function has not been derived yet. 

On the use of Volterra series for real-time simulations of weakly nonlinear analog audio devices: Application to the Moog ladder filter
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ABSTRACT In this paper, we show how the formalism of the Volterra series can be used to represent the nonlinear Moog ladder filter. The analog circuit is analyzed to produce a set of governing differential equations. The Volterra kernels of this system are solved from 

Asymmetric filter banks for mitigation of mismatch errors in high-speed analog-to-digital converters
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ABSTRACT Analog-to-digital converters (ADCs) are often the most critical components in, eg, electronics for telecommunications applications, ie, they tend to determine the overall system performance. Hence, it is important to determine their performance limitations and 

The analog filter design and interactive analog signal processing by PC control
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ABSTRACT This paper presents a new complex system for the cascade frequency filter design and physical frequency filter modeling. It is composed from universal digitally controlled analog frequency filter and a new software-frequency filter design studio -product. Our 

Analog filter design by genetic algorithms
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ABSTRACT There are well known classic techniques for filter design, the most common are the Butterworth and Chebyshev. The difference in their response is due to the parameter values in the filter's transfer function. Selection of a specific set produces a specific behaviour; 

Optimized analog flat filter design
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ABSTRACT This paper proposes a systematic approach for the optimized design of analog filters, which includes all well-known classical analog filters as a special case. All specifications including the conventional ones and also filter flatness degrees are 

Using the analog devices active filter design tool
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INTRODUCTION The Analog Devices Active Filter Design Tool assists the engineer in designing all-pole active filters. The filter design process consists of two steps. In Step 1, the response of the filter is determined, meaning the attenuation and/or phase response of the filter is 

A kalman filter calibration method for analog quadrature position encoders
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In presenting this thesis in partial fulfillment of the requirements for a Master's degree at the University of Washington, I agree that the Library shall make its copies freely available for inspection. I further agree that extensive copying of this thesis is allowable only for 

Determining Optimum coefficients of IIR Digital Filter using Analog to Digital Mapping
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ABSTRACT A Computer-aided design approach for determining Optimum Coefficients of Infinite Impulse Response (IIR) digital filters is produced. IIR filter is essentially a digital filter which depends not only upon the Input data but also upon one or more previous output values. A 

Low complexity two classes Gauss weighting filter for noise reduction in mobile receivedanalog TV signals
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ABSTRACT We introduce a low complexity method for noise reduction in mobile received analog TV signals. The two classes Gauss weighting filter is smoothing images while preserving image details and motion regions. This approach classifies neighboring image 

Analog Filter Synthesis
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N Pham, BM Wilamowski ,Industrial Electronics Handbook ,eng.auburn.edu Analog filters are essential in many different systems that electrical engineers are required to design in their engineering career. Filters are widely used in communication technology as well as in other applications. Although we discuss and talk a lot about digital systems 

A Bond Graph Representation Approach for Automated Analog Filter Design
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ABSTRACT We present a novel circuit representation scheme, namely bond graph, along with strong-typed genetic programming for the evolution of analog filter circuits. Bond graph is a concise and uniform language for the description of circuit systems and more general 

Analog RF Performance of a CMOS Optical Filter
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ABSTRACT We have used an integrated narrowband optical filter fabricated in 0.18 micron CMOS process to optically slice a modulated broadband RF signal into an individual channel of 1 GHz bandwidth. The detected channel signal has an in-band spur-free 

Analog Filter Banks with Low Intermodulation Distortion.
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ABSTRACT It is demonstrated that the filter-bank structure of can be designed to significantly reduce the effect of intermodulation distortion. This gives it an important advantage over other structures in radio systems. The principle is explained, and supported with Volterra 

Analog flat filter design.
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ABSTRACT This paper proposes a systematic approach for the design of a general class of analog infinite-impulse-response (IIR) filters, which includes all well-known classical analog filters as a special case. All specifications including the conventional ones and also filter 

Design of a programmable Switched-Capacitor analog FIR filter
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ABSTRACT The use of an analog adaptive filter can offer benefits over a digital adaptive filter in applications that require high-speed, low-power, and a moderate degree of Linearity. An adaptive digital FIR filter will typ-ically be implemented as a finite impulse response filter 

A 10-megasample-per-second analog-to-digital converter with filter and memory
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The Hewlett-Packard E1430A is a VXIbus-based analog-todigital converter (ADC) module containing a highdynamic-range, 23-bit-resolution, 10-MSa/s (megasampleper-second) ADC, a family of octave-spaced anti-aliasing filters, a complex frequency shifter, and a 8- 

A new filter topology for analog high-pass filters
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The analog circuit designer today has literally dozens of circuit topologies available to implement filters, from the venerable Sallen-Key (SK) filter, in use for well over fifty years, 1 to more esoteric and hard-topronounce filters such as the Mikhael-Bhattacharyya (MB) 

High resolution analog-digital converter and digital polynomial filter applications
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ABSTRACT The high resolution sigma-delta A/D converter with on-chip linear digital filtering intended for the measurement of wide dynamic range, low frequency signals such as those in industrial control or process control applications and digital smoothing polynomial filters 

A 512-stage analog-binary programmable transversal filter
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ABSTRACT Characterization of a new, 512 stage CCD correlator is reported. The device is a programmable, analog-binary correlator, i. e,, it stores binary reference codes and compares them to signals which are essentially analog in character. Performance of the new device ( 

High-speed hardware efficient FIR compensation filter for Delta-Sigma modulator analog-to-digital converter in 0.13 µm CMOS technology
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ABSTRACT A high-speed hardware efficient 41-tap, 15-bit word length Finite Impulse Response (FIR) Compensation Filter has been designed as a component in a Delta-Sigma Modulator (DSM) Analog-to-Digital Converter (ADC). The filter is targeted for high- 

Practical Considerations in the Design of a Bandpass Filter for the LWA Analog Receiver
free download

In a design for the LWA analog receiver was suggested. In Section 6.4 of that document, a design for a bandpass filter was proposed which provided the required 20-80 MHz bandpass. However, that design did not use standard (commercially available) 

Comparison of Decimation Filter Architectures for a Sigma-Delta Analog to Digital Converter
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ABSTRACT Different decimation filter architectures are compared for integration with an existing second order sigma-delta modulator to form a sigmadelta ADC. The decimation filters are implemented using a third order cascaded integrator comb filter programmed to 

Front-End Amplifier and RC Filter Design for a Precision SAR Analog-to-Digital Converter
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Successive-approximation (SAR) ADCs offer high resolution, excellent accuracy, and low power consumption. Once a particular precision SAR ADC has been chosen, system designers must determine the support circuitry needed to obtain the best results. The three 

Robust Filter Design for Sigma-Delta Modulators with One-Bit Quantizer and AnalogMismatch
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ABSTRACT A method for improving the signal-to-noise ratio (SNR) of single-stage sigma-delta modulators (SDMs) with one-bit quantizer is presented. It is well known that uncertainties and noises are sources of error which cause performance degradation. Specifically, the 

Improvements of Analog Neural Networks Based on Kalman Filter
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ABSTRACT In the paper, original improvements of recurrent analog neural networks, which are based on Kalman filter, are presented. These improvements eliminate some disadvantages of the classical Kalman neural network and enable a real time processing of quickly 

Passive Filter Characteristics and Interstage Matching Networks For Analog RF Integrated Circuits
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ABSTRACT Filters play vital roles in the design of RF circuits and systems. Included among these roles are impedance matching to ensure maximum signal power transfer between signal ports and loads imposed on these signal drivers, frequency response shaping to 

Process for a Programmable Analog Adaptive Filter from Digital Tap Coefficients
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ABSTRACT This paper presents a process for programming a truly continuous time analog adaptive filter beginning with digital tap coefficients, such as those used in digital signal processing methods. The motivation is to enable embedded systems to, in essence,' 

An analog filter design software package using Mathematica
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ABSTRACT In this paper a software package used to design analog filters is described. This filter design tool uses Mathematica from Wolfram Research as the numerical engine. This is called MathFilters. With this package, students or practicing engineers should be able to 

Optimization of Low Power CMOS Baseband Analog Filter-Amplifier Chain for Direct Conversion Receiver
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ABSTRACT A low power CMOS receiver baseband analog circuit based on alternating filter and gain stage is reported. For the given specifications of the baseband analog block, optimum allocation of the gain, IIP3 and NF of the each block was performed to minimize 

FILTERD: ANALOG FILTER DESIGN LABORATORY FOR TEACHING AND RESEARCH
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J Chojcan, J Izydorczyk, A Dustor ABSTRACT FilterD is a software for analog filter design and investigation, which has proved to be effective for both educational and practical design purposes. It is used in undergraduate engineering courses, in graduate study and general research. The programme is easily 

NOVEL METHOD FOR ANALOG FILTER TRANSFER FUNCTION IDEN-TIFICATION
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P ika, M Laipert ,radio.feec.vutbr.cz ABSTRACT This paper deals with an identification method of the analog filter transfer function. The method is based on usage of Differential Evolution algorithm which has been programmed in MATLAB. Parameters of the transfer function of the filter are identified by 

A General Second Order Analog Filter to Eliminate Limit Cycles For Constant Input Signals
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ABSTRACT Dither refers to a signal with small amplitude and zero mean that is intentionally injected into a system to effectively remove nonlinear distortions of the signal processed. The technique can be incorporated only when the parameters of limit cycles ie amplitude 

Modular design of an adaptive analog filter shaped as an identifier with CMOS of 0.5
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J Perez-Carmona, H Perez-Meana, J Sanchez-Garcia ABSTRACT This article presents the modular design of an adaptive analog filter with a technology CMOS of HP of 0.5 mm, whose coefficients adapt using the LMS algorithm. The proposed system is liable to be used in applications that require not only high 

Universal Filter Using Analog Building Block
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ABSTRACT A multi-input single output (MISO) second order voltage mode universal filter using two current controlled current conveyors (CCCIIs) and two equal valued capacitors is presented. The proposed circuit realizes all the standard responses of universal filter. The 

Digital Simulation of Limit Cycle in SecondHigher Order Analog Filter
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V Jain, D Garg ABSTRACT The paper examines the development of a graphical technique, leading to the use of computer graphics, for systematic analysis of limit cycles in Second and Higher Order Electronic Filter Systems. The graphical approach provides an explicit novel insight into 

Didactic Platform for Biomedical Signal Processing: Module for Analog Filter
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EE SOUZA, FM AZEVEDO, J MARINO NETO ABSTRACT Recent studies about Biomedical Engineering issues, which are subjects offered in Electrical Engineering undergraduate courses in Brazil, have shown a great lack of investment in this field. That was the main motivation in developing a Didactic Platform for 

Analog Filter Design and Analysis Concepts
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24 DESIGN AND ANALYSIS OF ANALOG FILTERS: response characteristics, such as the ideal lowpass, highpass, bandpass and bandstop responses discussed in this chapter, can only be approximated, ie, not precisely fit. In this chapter, with the reasonable constraints 

A Reconfigurable Digital Decimation Filter Design for a Cascade 2-2 Sigma-Delta Analog-to-Digital Converter
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C Mller, PCC de Aguirre, CA Prior, JBS Martins ,inf.ufrgs.br ABSTRACT This paper presents a reconfigurable digital design of filtering and decimation for a cascade 2-2 sigmadelta (S?) analog-to-digital converter (ADC). The S? ADC reconfigures its MASH (Multi-Stage-Noise-Shaping) topology and building blocks in order to adapt the 

The analog-to-digital conversion in the ADE7759 is carried out using two second-order sigma-delta ADCs. The block diagram in Figure 19 shows a first-order (
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A Filter - the need for an external analog integrator and pro- ,pdf.datasheetcatalog.com A sigma-delta modulator converts the input signal into a continuous serial stream of 1s and 0s at a rate determined by the sampling clock. In the ADE7759, the sampling clock is equal to CLKIN/4. The 1-bit DAC in the feedback loop is driven by the serial data stream. The 

Analog Filter Group Delay Optimization. Efficiency Evaluation of Optimization Methods.
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ABSTRACT A lot of methods for analog filter group delay optimization have been developed. In the article an original approach to the evaluation of the optimization methods is presented. Our approach is based on the original representation of the optimization results in a polar 

Integrated Mixed-Mode Digital-Analog Filter Converters
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ABSTRACT Mixed-mode digital-analog Filter converters (DAFIC's) comprise a digital delay line providing the input to digital-to-analog converters whose gains are weighted according to the coefficients of a flnite-impulse-response (FIR) transfer fonction. Alternative 

Revision of the Bandpass Filter for the LWA Analog Receiver
free download

In we revised the design of the bandpass filter (operating in 20-80 MHz) proposed in by using standard (commercially-available) components. We built a prototype of the receiver of the Long Wavelength Array (LWA) by replacing the filter sections of an existing receiver 

A Restrained Neighborhood Analog Median Filter For Image Processing Applications
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ABSTRACT The implementation of highly parallel median filters for image processing using a reduced interconnection complexity is presented. The performance of the noise removal process is analyzed, and the results are compared with the previously reported. Two 

A New Universal Second-Order Filter using Configurable Analog Building Blocks (CABs) for Filed-Programmable Analogue Arrays
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MT Abuelma'atti, OO Faresb ,tjer.net ABSTRACT In this paper, the design of a universal second-order filter using configurable analog blocks (CABs) for field programmable analog arrays is presented. The configurable blocks are capable of performing integration, differentiation, amplification, log, anti-log, 

Analog IP Filter Cores With Embedded Test For Design Reuse
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ABSTRACT Current technology allows for the integration of complete systems onto a single chip. These systems on chip (SoC) are increasingly designed by connecting together large pre-designed and verified modules, called cores, with the advantage being a faster design 

Design of Baseband Analog Chain with Optimum Allocation of Gain and Filter Rejection for WLAN Applications
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(BBA) chain for wireless local area network (WLAN) applications. For the given specifications of the receiver BBA chain, the optimum allocation of the gain and filter rejection of each block in a BBA chain is achieved to maximize the SFDR. The fully 

Nanofabrication of Optical Microring Filter Banks for Ultra-fast Analog-to-Digital Converters
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Microphotonic filter banks are an essential part of many proposed integrated photonic systems including ultra-fast analog-to-digital converters. Recent progress in designs and nanofabrication techniques for microring-resonators in high-index-contrast (HIC) materials 

A NON LINEAR FILTER; THE DESIGN OF AN ANALOG OTA CURRENT MODE MEDIANFILTER.
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AP FUENLABRADA, BE RAMREZ, J GARCIA ABSTRACT This article presents a non linear filter design, an Analog Median Filter design based on transconductance operational amplifiers OTA's and Current elements. This implementation corresponds to an ideal macromodel based on VCCS elements and 

An algorithm for color filter array interpolation and its implementation in an analog ASIC
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Color image data captured by single-chip CCD cameras gives only information about one of the three color channels for each pixel. The two missing color coordinates must be estimated in each pixel from the information of the neighborhood. This problem is known as' color 

INVESTIGATION OF HYBRID FILTER BANK BASED ANALOG-TO-DIGITAL CONVERSION
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ABSTRACT High sampling rate and high resolution analog-to-digital converters (ADCs) are required in a variety of applications, like wide band radio receivers, oscilloscopes and spectrum analyzers. Sample rates of hundreds of MSamples/sec and 10-12 bits of 

Digital Filter Design with Optimal Analog Performance
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ABSTRACT This paper proposes a new digital filter design methodology, based on sampled- data control theory. In contrast to the conventional filter designs where the methods are mostly based on frequency domain approximation techniques, the proposed method 

A GUI for IIR Digital Filter Design using Analog to Digital Mapping
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This Paper describes a simple computer-aided design approach for designing Infinite impulse response (IIR) digital filters. IIR filter is essentially a digital filter which depends not only upon the Input data but also upon one or more previous output values. A variety of 

Photonic methods of high speed analog data recording J. Chang, WF Filter, GJ Lockwood, and BT Neyer Sandia National Laboratories, Albuquerque, New Mexico
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J Chang ,reviews. ABSTRACT We propose a photonic high speed analog data recording system that, when compared with conventional oscilloscope-based systems, offers economy, higher bandwidth, electrical isolation, and compactness. The basis of this approach is to record 

Convert An Analog Low Pass Filter To A Digital Filter Using Pascal's Triangle.
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ABSTRACT This work introduces the relationship of the coefficients between a digital filter transfer function H (z) and an analog low pass filter transfer function H (s). By using the bilinear z-transformation pre-warping method with involving the Pascal's triangle, the 

Virtual Analog (VA) Filter Implementation and Comparisons
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I have had several requests from readers to do a Virtual Analog (VA) Filter Implementation plug-in. The source of these designs is a book electronically published in June 2012 named The Art of VA Filter Design by Vadim Zavalishin. This awesome piece of work is free and 

Low Power Consumption Analog Matched Filter
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M SASAKI, T SAKAI, T MATSUMOTO ABSTRACT A low power consumption AMF (Analog Matched Filter) is proposed which utilizes capacitor Multiply and capacitor Accumulation operations. High speed-high precision A/D converter is unnecessary because the proposed circuit directly samples received analog 

An Electrically Programmable LSI Tranve::-sal Filter for Discrete Analog Signal Processing (DASP)
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ABSTRACT This paper discusses the concept of discrete analog signal processing (DASP), to permit the realization of Fourier transformers, matched filters and correlators, and adaptive filters. The CCD shift register provides the analog delay function, the: tvfNOS 

CMOS Analog Matched Filter for DS-CDMA System Based on Operational Amplifier
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ABSTRACT This paper describes a novel matched filter for CDMA system. The structure of the proposed matched filter mainly consists of two parts: a voltage follower with a sample hold circuit and a selector which changes the pseudonoise sequence (PN sequence) pattern. 

MULTI-LEVEL SIMULATION OF A TRANSLINEAR ANALOG ADAPTIVE FILTER
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EJ McDonald, BA Minch ,vpa2.sabanciuniv.edu ABSTRACT In this paper, we briefly discuss a methodology for synthesizing analog systems from a high-level behavioral specification using a class of circuits called dynamic translinear circuits. We illustrate this method by synthesizing a Least-Mean-Square (LMS) adaptation 

FAST CON VERGEN T ANALOG ADAPTIVE FILTER
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ABSTRACT The adaptive ?lters has been traditional developed in digital environment which involves several and large, computations time to get the coefficients that make the desired approximation. Most of the times, this calculations required a great capacity machines and 

18.2 A 2.5 Gb/s Multi-Rate 0.25µm CMOS CDR Utilizing a Hybrid Analog/Digital Loop Filter
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A CDR architecture is presented in 0.25 µm CMOS that leverages a fully integrated hybrid analog/digital loop-filter structure to achieve the desired jitter performance with low area and power consumption while also allowing multi-rate operation at 155, 622, 1250, and 


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