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  • 标题:An Optimization of CORDIC Algorithm and FPGA Implementation
  • 本地全文:下载
  • 作者:Rui Xu ; Zhanpeng Jiang ; Hai Huang
  • 期刊名称:International Journal of Hybrid Information Technology
  • 印刷版ISSN:1738-9968
  • 出版年度:2015
  • 卷号:8
  • 期号:6
  • 页码:217-228
  • DOI:10.14257/ijhit.2015.8.6.21
  • 出版社:SERSC
  • 摘要: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.
  • 关键词:CORDIC; FPGA; ultra-high-speed integrated circuit; optimization
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