电子技术
電子技術
전자기술
ELECTRONIC TECHNOLOGY
2013年
6期
5-8
,共4页
胡海凤%赵建平%吴冬梅%路娜%秦永益
鬍海鳳%趙建平%吳鼕梅%路娜%秦永益
호해봉%조건평%오동매%로나%진영익
反余弦%FPGA%CORDIC%流水线
反餘絃%FPGA%CORDIC%流水線
반여현%FPGA%CORDIC%류수선
arccosine%FPGA%CORDIC%pipeline
快速精确的反余弦函数的运算在现在工程中有着广泛的应用。为了提高反余弦函数的精度和计算能力，提出了基于CORDIC算法的反余弦函数的实现方法。采用流水线的硬件结构实现了该算法，提高了运算速度和精度，并通过预处理将所求的角度延伸到整个坐标。在Xilinx公司spartan6系列芯片xc6slx16上予以验证，结果表明该算法的数据处理速度快，精度较高，适用于大数据量高速的数字信号处理领域。
快速精確的反餘絃函數的運算在現在工程中有著廣汎的應用。為瞭提高反餘絃函數的精度和計算能力，提齣瞭基于CORDIC算法的反餘絃函數的實現方法。採用流水線的硬件結構實現瞭該算法，提高瞭運算速度和精度，併通過預處理將所求的角度延伸到整箇坐標。在Xilinx公司spartan6繫列芯片xc6slx16上予以驗證，結果錶明該算法的數據處理速度快，精度較高，適用于大數據量高速的數字信號處理領域。
쾌속정학적반여현함수적운산재현재공정중유착엄범적응용。위료제고반여현함수적정도화계산능력，제출료기우CORDIC산법적반여현함수적실현방법。채용류수선적경건결구실현료해산법，제고료운산속도화정도，병통과예처리장소구적각도연신도정개좌표。재Xilinx공사spartan6계렬심편xc6slx16상여이험증，결과표명해산법적수거처리속도쾌，정도교고，괄용우대수거량고속적수자신호처리영역。
Abstact:Fast and accurate computation of arccosine function has been used widely in modem engineering. In order to improve the precision and calculating capacity of arccosine function, a implementation method for arccosine function based on CORDIC algorithm is presented. The CORDIC algorithm is implemented using the hardware structure of pipeline processing, which improves the processing speed and precision, and through pretreatment, the Angle required is extended to the whole coordinate. The experimental results which are verified on the spartan6 xc6slx16 chip from Xilinx show that this algorithm is faster in data processing and has higher precision, and is suitable for signal processing field of large amount of high speed data speed.
