On Passband and Stopband Cascaded-Integrator-Comb Improvements Using a Second Order IIR Filter
نویسندگان
چکیده
منابع مشابه
Design of IIR Digital Filters with Flat Passband and Equiripple Stopband Responses
In the design of IIR digital filters, the method that utilizes the classic analog filter design theory to design analog filters and then obtain the corresponding digital filters by sz transformation is well-known. However, IIR digital filters obtained via the bilinear sz transformation have just equal-order numerator and denominator. Having unequal-order numerator and denominator will give mo...
متن کاملComparison of Decimation Filter Architectures for a Sigma-Delta Analog to Digital Converter
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 work for oversampling ratios of 64, 128 and 256. IIR-FIR, non-recursive and polyphase architectures of decimation filters are simulated and imp...
متن کاملPerformance Analysis of Compensated CIC Filter in Efficient Computing Using Signed Digit Number System
This paper presents efficient compensated Cascaded Integrator Comb (CIC) decimation filter to improve the passband of interest using redundant signed digit arithmetic. In redundant representations, addition can be carried out in a constant time independent of the word length of the operands. Most of the research in the last decades has concentrated on reducing the delay of addition. A hybrid ad...
متن کاملOptimal Sharpening of CIC Filters and An Efficient Implementation Through Saramäki-Ritoniemi Decimation Filter Structure (Extended Version)
Conventional sharpened cascaded-integrator-comb (CIC) filters use generic sharpening polynomials to improve the frequency response. In contrast to the existing literature, an optimization framework is described for the selection of CIC sharpening polynomial and an efficient implementation through Saramäki-Ritoniemi decimation structure is suggested for its realization. The optimized sharpening ...
متن کاملCompact Dual-passband Filter Using Spiral Resonators
A novel compact dual-band bandpass filter using spiral resonators and input/output (source-load) direct coupling structure has been presented. Two different transmission paths are utilized to realize independently controllable central frequencies and bandwidths for each passband. In addition, three transmission zeros has been introduced to improve the frequency selectivity. A dual-passband filt...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: TELKOMNIKA (Telecommunication Computing Electronics and Control)
سال: 2012
ISSN: 2302-9293,1693-6930
DOI: 10.12928/telkomnika.v10i1.760