基于蒙特卡罗的核脉冲信号模拟

王红印1， 周建斌1， 周  伟1，2， 王  雪1， 卢圣才1， 李  建1
（1. 成都理工大学核技术与自动化工程学院，四川 成都 610059；
2. 中国矿业大学 煤炭资源与安全开采国家重点实验室，江苏 徐州 221116）
摘  要：介绍一种基于蒙特卡罗的核脉冲信号模拟方法，阐述蒙特卡罗方法中实现直接抽样和替换抽样的关键技术要点，并基于VC++开发环境实现负指数信号、正弦信号及含有噪声的核脉冲信号的软件模拟。从仿真结果来看，运用蒙特卡罗方法模拟的核脉冲信号能真实地描绘放射现场的辐射情况，满足模拟随机的核脉冲信号的要求。
关键词：核脉冲信号；蒙特卡罗模拟；抽样算法；计算机仿真
中图分类号：TL82；TN782；O211.9；TM930.12       文献标志码：A        文章编号：1674-5124（2013）03-0121-04
Simulation of nuclear pulse signal based on Monte Carlo method
WANG Hong-yin1， ZHOU Jian-bin1， ZHOU Wei1，2， WANG Xue1， LU Sheng-cai1， LI Jian1
（1.College of Nuclear Technology and Automation Engineering，Chengdu University of Technology，
Chengdu 610059，China；
2. State Key Laboratory of Coal Resources & Mine Safety，China University of Mining & Technology，
Xuzhou 221116，China）
Abstract: A simulation method of nuclear pulse signal based on Monte Carlo method was presented in this paper. And the important technical points of direct sampling and replacement sampling in Monte Carlo were introduced. Software simulation of the negative exponential signal， the sinusoidal signal and nuclear pulse signal containing noise was achieved in VC++ integrated development environment. Simulation results show that the nuclear pulse signal simulated with Monte Carlo method can describe a real situation of radiation-site and will meet the requirements of the simulation of random nuclear pulse signal.
Key words: nuclear pulse signal； monte carlo simulation； Sampling algorithm； Computer simulation