一种基于FPGA的CORDIC算法的实现  被引量:3

Implementation of a CORDIC algorithm based on FPGA

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作  者:黄如 徐磊[1] Huang Ru;Xu Lei(Institution of Optoelectronie Information and Computer Engineering,University of Shanghai for Science and Technology, Shanghai 200093, Chin)

机构地区:[1]上海理工大学光电信息与计算机工程学院

出  处:《电子测量技术》2018年第5期47-50,共4页Electronic Measurement Technology

摘  要:介绍了坐标旋转数字计算机(CORDIC)算法的基本原理,详细分析了CORDIC算法的具体实现方法。通过CORDIC算法提供的重要解决办法,实现了硬件电路对复杂函数的运算。以计算三角函数中的正弦和余弦函数为示例,给出了CORDIC算法的迭代结构流程,用Verilog硬件描述语言进行描述,及完成在ModelSim平台上的仿真测试。并采用Cyclone系列中的EP4CE15F17C8器件,达到设计在FPGA上实现的目的。最后,将仿真结果与理论值进行比较分析,验证了设计的正确性和可行性,解决了硬件电路对复杂函数运算的困难问题。This paper introduces the basic principle of CORDIC algorithm,and analyzes the concrete realization method of CORDIC algorithm in detail.Through the CORDIC algorithm provides an important solution to achieve the hardware circuit on the operation of complex function.Taking the sine and cosine functions in the trigonometric function as an example,the iterative structure of the CORDIC algorithm is given,the Verilog hardware description language is used to describe,and the simulation test on the modelsim platform is completed.And use EP4 CE15 F17 C8 devices in Cyclone series to achieve the purpose of design on FPGA.Finally,the simulation results are compared with the theoretical values to verify the correctness and feasibility of the design,and to solve the difficult problem of the complex function calculation by the hardware circuit.

关 键 词:CORDIC VERILOG FPGA 迭代 

分 类 号:TN911.7[电子电信—通信与信息系统]

 

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