摘要
混响室测试技术的精确性取决于混响室能够产生大量的独立测试样本。通过理论分析得到混响室的体积、搅拌器的尺寸以及腔体的工作频率与独立样本数的关系,推导出独立样本数的近似模型,并将实验数据与模型计算结果进行比较,对模型进行了改进和验证。结果表明:独立样本数与混响室的体积、品质因数、搅拌器的尺寸正相关,在一定范围内与搅拌器的电学尺寸负相关。该模型可以用于计算具有不同配置的不同混响室的独立样本数,具有良好的准确性和一般性。
The accuracy in reverberation chamber （RC） measurements depends on the chamber settings being able to gener-ate a large number of independent measurement samples. In this paper, an approximate theoretical model of the number of inde pendent samples is derived by theoretically analyzing how the RC configuration and the frequency influence the number of inde pendent samples, and the model is improved and verified by comparing a large amount of experimental data and calculation. The results show that the number of independent samples positively correlates with chamber volume, quality factor, and stirrer size, and negatively correlates with the electrical size of stirrers in a certain range. The model can be used to calculate the number of in dependent samples in RCs of different configurations, with good accuracy and generality.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2013年第11期3050-3054,共5页
High Power Laser and Particle Beams
基金
国家自然科学基金青年基金项目(51107147)
关键词
混响室
独立样本
机械搅拌
自相关函数
reverberation chamber
independent samples
mechanical stirring
autocorrelation function
