摘要
常用 C语言的随机数函数发生器是在 16位 (bits)情况下工作的 ,不能满足 32位或更高的环境下工作的实际需要。提出分形理论应用中构建随机数发生器的两种方法 :根据概率论的中心极值定理 ,产生服从高斯正态分布N (0 ,1)的随机数 ;基于混沌学原理产生随机数 ,不仅随机数序列内部有随机性 ,而且随机数序列本身也具有随机性。最后介绍了应用结果实例。
The randomizer of C-language work generally in 16 bits. It can not meet the practical needs in 32 bits or higher environment. This paper put forward two methods of constructing randomizer in the Fractal applications: (1) The randomizer satisfing the Gauss normal distribution N(0,1) is constructed basing on central limit theorem of the probability theory; (2) The random sequence is created basing on the Chaos principle. There is not only randomness inside the random sequence but also in random sequence itself. Last part introduces an example of application result.
出处
《测绘科学》
CSCD
2001年第2期42-45,共4页
Science of Surveying and Mapping
基金
国家测绘局测绘基金项目! (93- 0 2 )
