| 基于FPGA的高速高斯随机数发生器 |
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| 引用本文： | 陆兴平,许拔.基于FPGA的高速高斯随机数发生器[J].现代电子技术,2005,28(9):88-90. |
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| 作者姓名： | 陆兴平 许拔 |
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| 作者单位： | 国防科学技术大学,电子科学与工程学院,湖南,长沙,410073 |
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| 摘 要： | 设计了一个基于FPGA的高速、高性能的高斯随机数发生器。首先简要介绍了以前的一些算法并指出其不足之处。然后阐明了本文的算法：对均匀随机数进行高效的变换以生成非常接近高斯分布的随机数,再依据中心极限定理把两个上述随机数相加得到高斯随机数。算法所需的运算只有RAM的读操作与乘法、加法运算。分析了算法的性能并与其他算法做了对比,证明了本文算法的高效性。最后给出了FPGA实现的系统结构,并分析了所需的硬件资源。
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| 关 键 词： | 正态分布 随机数发生器 FPGA RAM |
| 文章编号： | 1004-373X(2005)09-088-03 |
| 修稿时间： | 2005年1月16日 |
High-speed Gaussian Random Number Generator Implemented with FPGA |
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| LU Xingping,XU Ba.High-speed Gaussian Random Number Generator Implemented with FPGA[J].Modern Electronic Technique,2005,28(9):88-90. |
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| Authors: | LU Xingping XU Ba |
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| Abstract: | A highspeed gaussian random number generator implemented with FPGA is presented in this paper.Several algorithms are briefly introduced and their shortcomings are pointed out.Then algorithm is presented: firstly,uniformlydistributed random numbers are effectively transformed to "GaussianLike" numbers,secondly,based on central limit theorem,each two of such "GaussianLike" numbers are added together to generate a gaussian sample.All the operations needed are addition,multiplication and RAM reading.The performance of the generator is excellent compared with others.Finally the system structure in FPGA is given. |
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| Keywords: | norm distribution random number generator FPGA RAM |
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