Design of Efficient Multiplier less Modified Cosine-Based Comb Decimation Filters: Analysis and Implementation - 2017


This paper presents a computationally efficient design of changed cosine-based decimation filters. One in all the main contributions of this paper is that the proposal of a multiplierless finite impulse response low-order linear-part filter to extend spurious signal rejection within the so-referred to as folding bands. The resulting filters feature reduced computational complexity compared with different recent proposals in the literature, furthermore higher folding-band attenuation than traditional comb filters. The frequency behavior of the proposed class of decimation filters is compared with generalized comb filters in addition to different proposals within the recent literature. Moreover, this paper addresses field-programmable gate array implementation of the proposed filters in an exceedingly selection of structures, including each nonrecursive and recursive architectures, and it evaluates and compares the performance of those architectures in terms of space and power consumption. A crucial comparison is supplied with the goal of highlighting key design problems and computational economical implementations for the interested reader.

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