全定制CORDIC运算器设计

浮点三角函数计算是导航系统、三维图像处理、雷达信号预处理等领域的基本运算.本文采用CORDIC算法及全定制集成电路设计方法实现了一种浮点三角函数计算电路,其输出数据兼容IEEE-754单精度浮点数标准.本文首先介绍了CORDIC算法的原理,并根据性能优先的原则采用了流水线结构；然后给出了基于SMIC O.13μm 1P...

Full Custom CORDIC Arithmetic Unit Design

Floating-point trigonometric computing is a fundamental operation in navigation systems,3D image processing,radar signal preprocessing and so on.This paper presents a floating point trigonometric computing circuit using a CORDIC algorithm and a full custom layout method,and the output data are compatible with the IEEE-754 signal precision floating-point standard.It describes the CORDIC algorithm principle and chooses a pipeline structure based on the principle of priority on performance.A static circuit structure and a full custom layout are given in the SIMC 0.13μm 1P8M CMOS process.The silicon area of data path is 605 284μm2 and the critical path delay is 3.013ns in the SS(Slow-Slow) corners.