摘要
目的 研究面向超大规模集成电路 ( VL SI)实现三角函数求解算法及其电路结构的实现 .方法 首先采用坐标旋转数字计算法推导求解三角函数的有效算法 ,然后利用小角度时的三角函数倍角公式推导有效的三角函数求解方法 .结果与结论 得到了电路结构形式简单 ,易于实现且能对任意角度的三角函数进行计算而不需查表的倍角计算法 ,同时也得到了改进的 CORDIC三角函数求解算法以及实现算法的 VL SI阵列结构 。
Aim To study the VLSI oriented algorithm of trigonometric function and its correspondent circuit architecture. Methods The CORDIC algorithm was used firstly to deduce the algorithm of evaluating trigonometric function. In order to get the effective algorithm of evaluating trigonometric function, the trigonometric function of multiple angles was used. Results and Conclusion The multiple angle algorithm that has a simple circuit architecture and can be used to evaluate the trigonometric function of any angle without looking up the value table of trigonometric function was gotten. The improved CORDIC algorithm and its correspondent VLSI array architecture were acquired at the same time. The correctness of two kinds of algorithm was proved by computer simulation results.
出处
《北京理工大学学报》
EI
CAS
CSCD
1999年第6期714-716,共3页
Transactions of Beijing Institute of Technology
关键词
三角函数
解
CORDIC算法
VLSD
电路结构
trigonometric function
coordinate rotation digital computer(CORDIC)
very large scale integrated circuits(VLSI)
