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| 高性能HPOR CORDIC算法及实现 | |
| 引用本文： | 田杭沛,高德远,张盛兵,曾宇永,余建功,曾翀. 高性能HPOR CORDIC算法及实现[J]. 中国集成电路, 2008, 17(11) |
| 作者姓名： | 田杭沛 高德远 张盛兵 曾宇永 余建功 曾翀 |
| 作者单位： | 1. 西北工业大学航空微电子中心,陕西,西安,710072 2. 湘南学院计算机系,湖南,郴州,423000 3. 清华大学计算机系,北京,100084 |
| 摘 要： | CORDIC算法在通信和图像处理等各个领域有着广泛的应用，但是浮点CORDIC由于迭代延时大且实现复杂没有得到很好的应用，本文提出了一种修正浮点CORDIC算法：高精度顺序迭代HPORCORDIC。该算法以接近定点的运算代价完成浮点运算迭代，运算速度和硬件实现规模与定点CORDIC相当，运算精度与浮点CORDIC相当，克服了定点CORDIC运算精度差，浮点CORDIC迭代延时大、实现复杂的问题。该算法既可用于通用微处理器的设计，也可用于高性能DSP的设计。 |
| 关 键 词： | 微处理器设计 复杂指令集计算机 超越函数指令 浮点CORDIC 误差分析 |
High Performance HPOR CORDIC Algorithm |
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| TIAN Hang-pei,GAO De-yuan,ZHANG Sheng-bing,ZENG Yu-young,SHE Jian-gong,ZENG Chong. High Performance HPOR CORDIC Algorithm[J]. China Integrated Circuit, 2008, 17(11) | |
| Authors: | TIAN Hang-pei GAO De-yuan ZHANG Sheng-bing ZENG Yu-young SHE Jian-gong ZENG Chong |
| Affiliation: | TIAN Hang-pei1,GAO De-yuan1,ZHANG Sheng-bing1,ZENG Yu-young2,SHE Jian-gong2,ZENG Chong3 |
| Abstract: | High performance microprocessor has a serious demand for speed and error of transcendental function cal culation.This paper proposes a new modified CORDIC:high precision orderly rotational CORDIC(HPOR CORDIC) algorithm to calculate transcendental function on general-purpose microprocessor which is based on thoroughly research for tradition CORDIC.HPOR CORDIC algorithm can calculate floating-point transcendental function as fast as fixed-point transcendental function and the implement complexity does not change.The algorithm has been used on a SOC soft core which is supported by the National Advanced Research Project. |
| Keywords: | Microprocessor design complex instruction set computer transcendental function instruction floating-point CORDIC error analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |