The Multiplexed Structure of Multi-channel FIR Filter and its Resources Evaluation

Liu, Ming; Yan, Chao

doi:10.1109/cdciem.2012.187

Cited by 16 publications

(2 citation statements)

References 6 publications

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“…In poly-phase decomposition FIR structurebased sample rate converter, the original length of the filter is divided into multiple stages. The problem with poly-phase FIR structure-based sample rate converter is that it does not work correctly when the sampling rate is changed significantly [3]. The anti-sinc function gives the output of the MAC filter with respect to frequency change.…”

Section: Introductionmentioning

confidence: 99%

Power Efficient Multichannel Discrete Time Based LTI System for DSP

Jain¹,

Chakrabarti²,

Hati³

et al. 2021

Preprint

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This paper proposes a power-efficient multichannel discrete-time system based on a Cat swarm-based optimization algorithm for multi-signaling processing of the different signals from different musical instruments. The purpose is to provide an adjustable signaling rate to avoid aliasing. The multichannel discrete-time system can increase and decrease the sampling frequency by fraction value according to the incoming signal's maximum frequency from various musical instrument sources. Here, the multichannel discrete-time system introduces zeros and removes the samples uniformly according to requirements. To make it power efficient and reduce resource utilization by applying particle swarm optimization algorithm at the implementation time on FPGA.

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Section: Introductionmentioning

confidence: 99%

Power Efficient Multichannel Discrete Time Based LTI System for DSP

Jain¹,

Chakrabarti²,

Hati³

et al. 2021

Preprint

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“…FIR filters are widely used in digital signal processing applications due to their inherent stability, powerful design algorithms, and the ease to attain the linear phase property. Reconfigurable finite impulse response (FIR) filter whose filter coefficients change dynamically during runtime plays an important role in the software defined radio (SDR) systems [1,2], multichannel filters [3], and digital up/down converters [4]. Specially, in software defined radio (SDR) systems, which support multiple communication standards at any given point of time, FIR filters supporting different lengths and different coefficient values used in all the present standards as well as emerging standards need to be implemented in a single chip.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable FIR Filter for Dynamic Variation of Filter Order and Filter Coefficients

Meher¹,

Park²

2016

JSTS:Journal of Semiconductor Technology and Science

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Abstract-Reconfigurable finite impulse response (FIR) filters whose filter coefficients and filter order change dynamically during run-time play an important role in the software defined radio (SDR) systems, multi-channel filters, and digital up/down converters. However, there are not many reports on such reconfigurable designs which can support dynamic variation of filter order and filter coefficients. The purpose of this paper is to provide an architectural solution for the FIR filters to support run-time variation of the filter order and filter coefficients. First, two straightforward designs, namely, (i) single-MAC based design and (ii) fullparallel design are presented. For large variation of the filter order, two designs based on (iii) folded structure and (iv) fast FIR algorithm are presented. Finally, we propose (v) high throughput design which provides significant advantage in terms of hardware and/or time complexities over the other designs. We compare complexities of all the five structures, and provide the synthesis results for verification.

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