CAJ | 학술논문

提出一种无伸缩因子的双曲线坐标旋转数字计算（CORDIC）算法，该算法解决了伸缩因子的补偿问题，扩展了传统算法中受限的收敛域。对改进算法进行了误差分析，并通过仿真图直观比较，表明采用的算法精度满足硬件精度要求。提出了一种CORDIC算法的多级流水线结构和一种新的直接数字频率合成器（DDS）设计方法，此方案降低了硬件复杂度，易于实现。
제출일충무신축인자적쌍곡선좌표선전수자계산（CORDIC）산법，해산법해결료신축인자적보상문제，확전료전통산법중수한적수렴역。대개진산법진행료오차분석，병통과방진도직관비교，표명채용적산법정도만족경건정도요구。제출료일충CORDIC산법적다급류수선결구화일충신적직접수자빈솔합성기（DDS）설계방법，차방안강저료경건복잡도，역우실현。
In this paper,a scaling-free CORDIC algorithm is proposed for hyperbolic that the problems of scale factor compensation is eliminated and the limited range of convergence associated with the classical algorithm is extended. The error of the improved algorithm is analyzed and the simulation diagram is compared,which show that the accuracy of the algorithm used by the hardware meet the accuracy. Based on the improved algorithm,a multilevel structure of pipeline CORDIC algorithm and a new DDS is implemented. The scheme is easier to implement and the complexity of hardware is decreased.