基于蒙特卡洛法的微波功率测量不确定度评定  

Evaluation of measurement uncertainty of microwave power based on Monte Carlo method

作　　者：王瑞宝[1] 

机构地区：[1]中国人民解放军92571部队

出　　处：《国外电子测量技术》2015年第7期28-31,共4页Foreign Electronic Measurement Technology

摘　　要：利用蒙特卡洛法对微波功率测量不确定度进行评定。介绍了蒙特卡洛法评定测量不确定度的过程,给出了基于MATLAB实现蒙特卡洛法评定的步骤。分别使用单批次蒙特卡洛法和自适应蒙特卡洛法评定给定频率下微波功率测量不确定度,并与GUM法结果进行比较和验证。结果表明除标准不确定度值蒙特卡洛法和GUM法相差5%外,其他结果几乎一致,蒙特卡洛法验证了GUM法,完全适合微波功率测量不确定度评定。蒙特卡洛法能处理线性模型,在各不确定度分量相差较大情况下优势明显,同时简单、方便,易于推广。The measurement uncertainty of microwave power was evaluated by Monte Carlo method （MCM）. The evaluation process of measurement uncertainty was introduced with MCM, and procedure of MCM with MATLAB was given. Both single batch MCM and adaptive MCM method were used to evaluate measurement uncertainty of microwave power at a given frequency. The results from two MCM were compared with GUM method. It showed that the results were almost identical, addition to 5% deviation in standard uncertainty between MCM and GUM. The MCM validated GUM and was fully fit for evaluation measurement uncertainty of microwave power. The MCM can deal with linear model per- fectly, and its advantage is obvious in the case of similar components of uncertainty, and it is simple, convenient, and easy to spread at same time.

关 键 词：蒙特卡洛法 GUM法 测量不确定度 微波功率 MATLAB 

分 类 号：TB9[一般工业技术—计量学] TN98[机械工程—测试计量技术及仪器]