大众科技
大衆科技
대음과기
DAZHONG KEJI
2012年
2期
72-72,43
,共2页
反正弦%CORDIC算法%现场可编程门阵列%LUT查找表
反正絃%CORDIC算法%現場可編程門陣列%LUT查找錶
반정현%CORDIC산법%현장가편정문진렬%LUT사조표
Arcsine function%CORDIC algorithm%Field programmable gate array%Lookup table
描述了一种基于FPGA利用VHDL实现的反正弦函数计的优化算法。在数字信号处理领域,高速高精度的反正弦函数发生器有着广泛的应用。讨论了CORDIC算法和直接LUT查找表法缺点,提出一种新的优化LUT查找表算法。该算法能够在FPGA中实现,并且经软件仿真和硬件验证,达到了设计要求。
描述瞭一種基于FPGA利用VHDL實現的反正絃函數計的優化算法。在數字信號處理領域,高速高精度的反正絃函數髮生器有著廣汎的應用。討論瞭CORDIC算法和直接LUT查找錶法缺點,提齣一種新的優化LUT查找錶算法。該算法能夠在FPGA中實現,併且經軟件倣真和硬件驗證,達到瞭設計要求。
묘술료일충기우FPGA이용VHDL실현적반정현함수계적우화산법。재수자신호처리영역,고속고정도적반정현함수발생기유착엄범적응용。토론료CORDIC산법화직접LUT사조표법결점,제출일충신적우화LUT사조표산법。해산법능구재FPGA중실현,병차경연건방진화경건험증,체도료설계요구。
An optimization algorithm of arcsine function in use of VHDL based on FPGA was studied.In the field of digital signal processing,high-speed and high-precision arcsine function generator has a wide range of applications.Disadvantages between the CORDIC and the direct LUT are discussed and a new optimized LUT is proposed.The algorithm could be implemented in FPGA and it met design requirements tested by software simulation and hardware.
