University of Oulu

Shahabuddin, S., Manninen, P. & Juntti, M. A Fractional Sample Rate Converter with Parallelized Multiphase Output: Algorithm and FPGA Implementation. J Sign Process Syst (2022). https://doi.org/10.1007/s11265-022-01776-1

A fractional sample rate converter with parallelized multiphase output : algorithm and FPGA implementation

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Author: Shahabuddin, Shahriar1,2; Manninen, Petri3; Juntti, Markku2
Organizations: 1Mobile Networks, Nokia, Kaapelitie 4, Oulu, 90620, Finland
2Centre for Wireless Communications, University of Oulu, Erkki Koiso-Kanttilan katu 3, Oulu, 90570, Finland
3Digital Enhancement Suomi Oy, Kiviharjunlenkki 1 B, Oulu, 90220, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe2022080352588
Language: English
Published: Springer Nature, 2022
Publish Date: 2023-06-17
Description:

Abstract

Sample rate conversion is an essential scheme used in almost every radio design. Supporting sampling rates higher than the clock rates require parallel processing. In this paper, we propose an algorithm for a sample rate converter (SRC) with multiple parallel output phases so that the conversion ratio can be a fixed rational number. Due to the structure of the proposed algorithm, it is suitable for embedded platforms which are restricted by their clock frequency but require very high sample rates. A dual phase output variant of the proposed algorithm is simulated with a 400 MHz input signal to perform a 15/8 conversion. The test and verification of the SRC algorithm is presented with the aid of a design example. A VLSI architecture of the dual phase output SRC is implemented on a Virtex-7 field-programmable gate array (FPGA) and results are presented.

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Series: Journal of signal processing systems for signal image and video technology
ISSN: 1939-8018
ISSN-E: 1939-8115
ISSN-L: 1939-8018
Volume: In press
DOI: 10.1007/s11265-022-01776-1
OADOI: https://oadoi.org/10.1007/s11265-022-01776-1
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Subjects:
SRC
Copyright information: © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2022. This is a post-peer-review, pre-copyedit version of an article published in J Sign Process Syst. The final authenticated version is available online at https://doi.org/10.1007/s11265-022-01776-1.