摘要
该文介绍了CORDIC算法原理,阐述了CORDIC算法的24位流水线结构设计与实现,给出了算法的仿真结果。根据硬件加速理论与NiosII处理器特性,通过增加自定制指令的方式将CORDIC算法定制为NiosII处理器指令,应用于导航解算系统中,提高导航解算系统的解算速度。
This paper introduces the principle of CORDIC algorithm,expatiates on the process of CORDIC algorithm which is designed and implemented through the waterline structure.Then it gives the emulate result of the algorithm.Based on the hard accelerate theory and the NiosII CPU characteristic,we can custom the CORDIC algorithm as an instruction,so as to append it to the NiosII soft CPU.At last,we apply the customized instruction in the navigation solution system,achieve to improve the solution speed of the navigation solution system.
基金
浙江省科技厅重点计划项目(KYZ041104008)
关键词
流水线设计
硬件加速
自定制指令
解算系统
waterline design
hard accelerate
custom instruction
solution system
