摘要
虚拟模型与真实设备混合的仿真实验系统对虚拟模型提出了明确的实时性要求.现有的光子传输模型运行时间较长,不适用于对实时性要求较高的仿真实验系统.本文针对此问题,利用光子的群体特性来描述光子在多层平板型介质中的传输过程,采用高斯分布描述接收平面的光子,通过总光子数量和63.2%能量半径的计算结果得到接收平面的光子分布.实验结果表明,在相同的仿真条件下,本文方法与标准Monte Carlo光子传输模型相比变化趋势和数值基本吻合,而运行速度提高,可满足一般仿真实验系统的实时性要求.
The mixture simulation system of virtual model and real equipment requests for clear real-time characteristics to the virtual model. The running time of existing photon transmission model is too long to meet the real-time requirement of simulation system.For this problem, we described the photon lransmission in the multi-layer tim-type media utilizing its group characteristics, and the photons in the received plane using Gaussian distribution,then got the photon distribution in receiving plane according to the results of total numbers and 63.2% energy radius.Experimental results show that the trends and values of this method are basically comistent with the standard Monte Carlo photon transmission model in the same simulation conditions, and this method delivers a substantial increase in speed which can meet the real-time requirements of general simulation system.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2012年第10期2073-2078,共6页
Acta Electronica Sinica
基金
航天支撑技术基金项目(No.2010-HT-HGD-16)
