现代电子技术2016，Vol.39Issue(21)：95-98,4.DOI:10.16652/j.issn.1004-373x.2016.21.023
基于CORDIC算法的基4DIT-FFT处理器的设计
Design of radix-4 DIT-FFT processor based on CORDIC algorithm
摘要
Abstract
With the development of ocean development and information industry,the high-speed,large-capacity and high-reliability underwater acoustic communication system becomes a research hotspot. The design of a radix-4 DIT-FFT processor used in underwater acoustic communication system is discussed. The CORDIC algorithm is utilized in the design to optimize the butterfly processing unit. The complex multiplication is converted into add,subtraction and shift operations easier to implement with hardware. The telescopic coefficient and rotary coefficient are preprocessed with Matlab to accelerate the computing speed greatly and reduce system complexity. On this basis,a radix-4 DIT-FFT processor with 1024 points and 12 bits was designed.关键词
CORDIC算法/基4DIT-FFT/蝶形运算单元/流水线结构Key words
CORDIC algorithm/radix-4 DIT-FFT/butterfly processing unit/pipeline structure分类
信息技术与安全科学引用本文复制引用
李晓彤,李欣..基于CORDIC算法的基4DIT-FFT处理器的设计[J].现代电子技术,2016,39(21):95-98,4.基金项目
国家科技支撑计划课题:基于自动识别(AIS)技术的个人海上搜救系统的研制(2014BAK12B06) （AIS）
