基于四点插值细分精插补算法的FPGA仿真与实现  

FPGA Simulation and Implementation of Interpolation Algorithm Based on 4-Point Interpolation Subdivision

作　　者：张昀 陈德为[1] 刘志聪 李一杭 钟剑兵 ZHANG Yun;CHEN De-wei;LIU Zhi-cong;LI Yi-hang;ZHONG Jian-bing(School of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350116,China)

机构地区：[1]福州大学机械工程及自动化学院,福建福州350116

出　　处：《机械工程与自动化》2019年第3期54-56,共3页Mechanical Engineering & Automation

摘　　要：针对高速脉冲均匀分配算法不能根据相邻粗插补数据的变化计算精插补数据的问题,提出了一种四点插值细分精插补算法,并利用FPGA进行硬件仿真。实验表明该算法既可以保证脉冲均匀分配,又可以有效地降低精插补与粗插补数据点的偏差,进一步提高了数控系统控制精度。To solve the problem that high speed pulse uniform distribution algorithm can′t calcutate the interpolating data according to the variation of adjacent data points,a kind of interpolation algorithm based on 4-point interpolation subdivision is proposed in this paper,and it is studied by using the FPGA hardware simulation.The results of FPGA hardware verification show that the algorithm can not only ensure the uniform distribution of pulse,but also effectively reduce the data points deviation in fine interpolation and coarse interpolation ,and further improve the control precision of the CNC system.

关 键 词：四点插值细分精插补算法 FPGA 脉冲均匀分配 

分 类 号：TG659[金属学及工艺—金属切削加工及机床] TP391.9[自动化与计算机技术—计算机应用技术]