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Design and Implementation of Hybrid CORDIC Algorithm Based on Phase Rotation Estimation for NCO

The numerical controlled oscillator has wide application in radar, digital receiver, and software radio system. Firstly, this paper introduces the traditional CORDIC algorithm. Then in order to improve computing speed and save resources, this paper proposes a kind of hybrid CORDIC algorithm based on...

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Detalles Bibliográficos
Autores principales: Zhang, Chaozhu, Han, Jinan, Li, Ke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4119700/
https://www.ncbi.nlm.nih.gov/pubmed/25110750
http://dx.doi.org/10.1155/2014/897381
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author Zhang, Chaozhu
Han, Jinan
Li, Ke
author_facet Zhang, Chaozhu
Han, Jinan
Li, Ke
author_sort Zhang, Chaozhu
collection PubMed
description The numerical controlled oscillator has wide application in radar, digital receiver, and software radio system. Firstly, this paper introduces the traditional CORDIC algorithm. Then in order to improve computing speed and save resources, this paper proposes a kind of hybrid CORDIC algorithm based on phase rotation estimation applied in numerical controlled oscillator (NCO). Through estimating the direction of part phase rotation, the algorithm reduces part phase rotation and add-subtract unit, so that it decreases delay. Furthermore, the paper simulates and implements the numerical controlled oscillator by Quartus II software and Modelsim software. Finally, simulation results indicate that the improvement over traditional CORDIC algorithm is achieved in terms of ease of computation, resource utilization, and computing speed/delay while maintaining the precision. It is suitable for high speed and precision digital modulation and demodulation.
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spelling pubmed-41197002014-08-10 Design and Implementation of Hybrid CORDIC Algorithm Based on Phase Rotation Estimation for NCO Zhang, Chaozhu Han, Jinan Li, Ke ScientificWorldJournal Research Article The numerical controlled oscillator has wide application in radar, digital receiver, and software radio system. Firstly, this paper introduces the traditional CORDIC algorithm. Then in order to improve computing speed and save resources, this paper proposes a kind of hybrid CORDIC algorithm based on phase rotation estimation applied in numerical controlled oscillator (NCO). Through estimating the direction of part phase rotation, the algorithm reduces part phase rotation and add-subtract unit, so that it decreases delay. Furthermore, the paper simulates and implements the numerical controlled oscillator by Quartus II software and Modelsim software. Finally, simulation results indicate that the improvement over traditional CORDIC algorithm is achieved in terms of ease of computation, resource utilization, and computing speed/delay while maintaining the precision. It is suitable for high speed and precision digital modulation and demodulation. Hindawi Publishing Corporation 2014 2014-07-07 /pmc/articles/PMC4119700/ /pubmed/25110750 http://dx.doi.org/10.1155/2014/897381 Text en Copyright © 2014 Chaozhu Zhang et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Zhang, Chaozhu
Han, Jinan
Li, Ke
Design and Implementation of Hybrid CORDIC Algorithm Based on Phase Rotation Estimation for NCO
title Design and Implementation of Hybrid CORDIC Algorithm Based on Phase Rotation Estimation for NCO
title_full Design and Implementation of Hybrid CORDIC Algorithm Based on Phase Rotation Estimation for NCO
title_fullStr Design and Implementation of Hybrid CORDIC Algorithm Based on Phase Rotation Estimation for NCO
title_full_unstemmed Design and Implementation of Hybrid CORDIC Algorithm Based on Phase Rotation Estimation for NCO
title_short Design and Implementation of Hybrid CORDIC Algorithm Based on Phase Rotation Estimation for NCO
title_sort design and implementation of hybrid cordic algorithm based on phase rotation estimation for nco
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4119700/
https://www.ncbi.nlm.nih.gov/pubmed/25110750
http://dx.doi.org/10.1155/2014/897381
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