Design and Optimization of DDS Based on CORDIC in FPGA

CHEN Yi-he; SHE Lei; LI Jiao-mei

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Design and Optimization of DDS Based on CORDIC in FPGA

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- Design and Optimization of DDS Based on CORDIC in FPGA
- Vol. 29, Issue 8, Pages: 111-114(2012)
- 作者机构：
  
  1. 中国科学院武汉物理与数学研究所,湖北,武汉,430071
  2. 中国科学院机构原子频标重点实验室(武汉物理与数学研究所),湖北,武汉,430071
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
- 稿件说明：
移动端阅览
陈义和, 佘磊, 李交美. 基于CORDIC算法的DDS的FPGA设计与优化[J]. 微电子学与计算机, 2012, 29(8): 111-114.

CHEN Yi-he, SHE Lei, LI Jiao-mei. Design and Optimization of DDS Based on CORDIC in FPGA[J]. 2012, 29(8): 111-114.
陈义和, 佘磊, 李交美. 基于CORDIC算法的DDS的FPGA设计与优化[J]. 微电子学与计算机, 2012, 29(8): 111-114. DOI：

CHEN Yi-he, SHE Lei, LI Jiao-mei. Design and Optimization of DDS Based on CORDIC in FPGA[J]. 2012, 29(8): 111-114. DOI：

摘要

采用CORDIC算法计算三角函数值来实现DDS

可以减少存储资源

便于在FPGA中实现.通过对传统CORDIC算法流水结构的分析

提出了一种在迭代过程采用不同位宽的寄存器存储角度值和幅度值的优化方法

可以节省资源而不影响计算精度

并且在FPGA中实现了该方法.

Abstract

This paper realizes DDS by using the CORDIC algorithm to calculate the value of trigonometric function

which is convenient to the FPGA implement.According to analysis of the traditional pipeline structure CORDIC algorithm

we present a new method of optimization that using different bits to save the anger value and amplitude value during iterations

and realize it in FPGA

which can reduce the FPGA resource.

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Related Institution

School of Computer, Guangxi Economic Management Cadre College

1 College of Energy and Electrical Engineering, Hohai University

2 School of Optoelectronics Engineering, Changzhou Institute of Technology

Department of Computer Science,Anhui University of Technology,Ma′anshan

VLSI & System Laboratory, College of Electronic Information and Control Engineering, Beijing University of Technology

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