摘要
研究了用于辐射测试的电波暗室归一化场地衰减的测试原理,针对现有暗室场地验证存在的问题,提出了一种归一化场地衰减结果的优化方案。对电波暗室的四个特殊位置点进行常规的归一化场地衰减测量,然后用特定几何校正因子对测量结果进行校正。最后将校正后的结果与常规测试结果进行比较,最大校正幅度达到1.83 dB,最小校正幅度为0.07 dB,提高了暗室场地验证测试的准确性,间接减小了辐射骚扰的测试误差。
This article studies the measurement principle of normalized site attenuation for the radiated disturbance measurement in anechoic chamber.Aiming at the problem of the anechoic chamber during the site validation,an effective scheme is proposed to optimize the measurement results of normalized site attenuation.The conventional normalized site attenuation measurement is carried out at four positions among the test zone,then,a called geometry-specific correction factor is used to revise the measurement results.Finally,the revised results are compared with the original test results.According to the experiments results,the maximal correction reaches 1.83dB and the minimum is 0.07dB,which improves the accuracy of site validation in the chamber and thus reduce the measurement error of radiated disturbance.
作者
周毅
李军
徐晓光
张栋
周海波
吴绍精
李滢舟
ZHOU Yi;LI Jun;XU Xiao-guang;ZHANG Dong;ZHOU Hai-bo;WU Shao-jing;LI Ying-zhou(Testing and Technology Center for Industrial Products of Shenzhen Customs,Shenzhen 518067;Shenzhen Academy of Inspection and Quarantine,Shenzhen 518045)
出处
《环境技术》
2021年第6期172-176,共5页
Environmental Technology
基金
国家重点研发计划项目(2018YFC080910005)。
关键词
电波暗室
归一化场地衰减
特定几何校正因子
辐射骚扰
场地验证
semi-anechoic chamber
normalized site attenuation
geometry-specific correction factor
radiated disturbance
site validation
