低消耗免查找表CORDIC算法
[Abstract]:In order to reduce the hardware resource consumption and output delay of traditional streamline CORDIC (Coordinate Rotation Digital Computer) algorithm, a CORDIC algorithm implementation method without look-up table link is proposed on the basis of the implementation of three-stage CORDIC algorithm including look-up table. The improved algorithm directly uses the iterative operation of four shifts to replace the look-up table structure, thus significantly reducing register consumption, and effectively reduces the maximum output delay by combining iterations to reduce the number of iterations, and combines the angle polarization recoding (Binary To Bipolar Recoding,BBR) method and the angle interval folding technique to ensure the output accuracy. Verilog HDL language is used to implement the three algorithms on ISE14.2 software platform, and XST tools are used to synthesize them, and the sine and cosine output error of the algorithm is obtained by MATLAB modeling and calculation. The simulation results show that the CORDIC algorithm can effectively output the sine and cosine values when the output bit width is set to 16 bits, and compared with the traditional streamline algorithm, the register resource consumption of the table-free algorithm is reduced by about 74.42%, the clock cycle required by the calculation is reduced by 68.75%, and the output accuracy is obviously improved. Compared with the three-stage algorithm, the register consumption of the table-free algorithm is reduced by about 43.3%. The CORDIC algorithm proposed in this paper has the advantages of strong real-time performance, high output accuracy and low consumption of hardware resources, so it is more suitable for the application of high-speed and real-time modern digital communication system.
【作者單位】: 中國(guó)地質(zhì)大學(xué)(武漢)機(jī)械與電子信息學(xué)院;
【基金】:國(guó)家自然科學(xué)基金(61601334)
【分類號(hào)】:TP301.6
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 陸鵬威;梅杓春;;基于CORDIC算法實(shí)現(xiàn)三角函數(shù)的運(yùn)算[J];國(guó)外電子測(cè)量技術(shù);2008年01期
2 郁道銀;李妍;李明;汪毅;陳曉冬;;面向醫(yī)學(xué)超聲圖像坐標(biāo)變換的CORDIC算法優(yōu)化[J];納米技術(shù)與精密工程;2011年06期
3 李杰明;鄭學(xué)仁;;基于CORDIC算法的數(shù)字圖像旋轉(zhuǎn)實(shí)現(xiàn)[J];電子技術(shù)應(yīng)用;2009年06期
4 黃麗君;文志強(qiáng);;基于色彩分類的查找表圖像逆半調(diào)方法[J];湖南工業(yè)大學(xué)學(xué)報(bào);2013年05期
5 方成,喻壽益,曹衛(wèi)華;一種新穎的基于多值化查找表的彩色目標(biāo)搜索法[J];電腦與信息技術(shù);2002年01期
6 劉曉虹;孔月萍;;一種改進(jìn)的查找表逆半調(diào)算法[J];計(jì)算機(jī)技術(shù)與發(fā)展;2007年04期
7 孔月萍;何波;曾平;徐培培;;查找表與神經(jīng)網(wǎng)絡(luò)相結(jié)合的圖像逆半調(diào)算法[J];計(jì)算機(jī)工程與科學(xué);2007年04期
8 袁非牛;;一種基于查找表的快速導(dǎo)航路徑提取算法[J];系統(tǒng)仿真學(xué)報(bào);2008年21期
9 李愛梅;查找表的擴(kuò)展與實(shí)現(xiàn)[J];南方冶金學(xué)院學(xué)報(bào);2001年01期
10 陳啟星;陳彬;陳葉;;用靜態(tài)鏈表和逆序插入算法構(gòu)成的動(dòng)態(tài)查找表[J];電腦與信息技術(shù);2007年03期
相關(guān)會(huì)議論文 前1條
1 李秋潔;王瑞;黃維晉;;基于多級(jí)查找表的VLC算法的FPGA實(shí)現(xiàn)[A];全國(guó)第一屆嵌入式技術(shù)聯(lián)合學(xué)術(shù)會(huì)議論文集[C];2006年
相關(guān)碩士學(xué)位論文 前5條
1 金真;基于多維信息顏色查找表的計(jì)算彩色成像[D];北京理工大學(xué);2015年
2 葉德剛;圖像逆半調(diào)技術(shù)中查找表模板優(yōu)化方法研究[D];湖南工業(yè)大學(xué);2016年
3 馬玫娟;基于三維查找表的數(shù)字圖像顏色校正[D];北京工業(yè)大學(xué);2009年
4 姜曼;基于二維顏色查找表的雙波段彩色圖像融合算法研究[D];北京理工大學(xué);2015年
5 喬新亮;面向彩色打印的3D-LUT優(yōu)化技術(shù)[D];西安電子科技大學(xué);2002年
,本文編號(hào):2499118
本文鏈接:http://sikaile.net/kejilunwen/ruanjiangongchenglunwen/2499118.html