Earticle

초록

영어

ASIC and FPGA ASIC and FPGA are considered to be the ideal platform for special fast calculations because of the hardware structure, and how to achieve computational algorithm by is the hotpot of research. The CORDIC (Coordinate Rotational Digital Computer) can break the basis functions down to operations of shift and addition or subtraction, which can be used to lay the foundation for the realization of complex logic. But the functions selected by traditional CODIC for angle encoding are too complex, which will lead to some problems, such as too much of area consumption and large delay. In this paper, an optimization of CORDIC algorithm are proposed, which reduce the consumption of Adders and comparators, decrease the complexity and delay of the algorithm implement in hardware. The proposed algorithms are modeled in Verilog Hardware Description Language and implemented with FPGA. The simulation results show that the functions of sine and cosine are realized successfully, and the proposed algorithm not only improves the computation speed but also reduces the system hardware resources.

목차

Abstract
 1. Introduction
 2. Principle of CORDIC Algorithm
 3. Problems and Optimization of CORDIC Algorithm
  3.1 Relationship between the Number of Iterations and Accuracy of Data
  3.2 Limitations of CORDIC Algorithm
  3.3 Range of Angle
  3.4 Optimization of CORDIC Algorithm
  3.5 Adjustment of Range of the Input Angle
 4. Implementation of the CORDIC Algorithm based on FPGA
  4.1 Introduction of Tools for Development
  4.2 Design of the System
 5 .Simulation of CORDIC Algorithm based on FPGA
  5.1 Simulation of Traditional CORDIC Algorithm
  5.2 Simulation of the Optimized CORDIC Algorithm based on FPGA
 6. Conclusions
 Acknowledgements
 References

키워드

저자

• Rui Xu [ Department of Integrated circuits design and integrated systems,Harbin University of Science and Technology ,Harbin, Heilongjiang, China ]
• Zhanpeng Jiang [ Department of Integrated circuits design and integrated systems,Harbin University of Science and Technology ,Harbin, Heilongjiang, China ]
• Hai Huang [ Department of Integrated circuits design and integrated systems,Harbin University of Science and Technology ,Harbin, Heilongjiang, China ]
• Changchun Dong [ Department of Integrated circuits design and integrated systems,Harbin University of Science and Technology ,Harbin, Heilongjiang, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Hybrid Information Technology

• 간기

  격월간

• pISSN

  1738-9968

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605