高斯白噪声环境下电磁辐射测量修正  

Correction of electromagnetic radiation measurement in Gaussian white noise environment

作　　者：杨万春[1] 高婷[1] 钟志刚[2] 张兴海[3] 史庆飞[4] 马俊[4] 谢琦 YANG Wanchun;GAO Ting;ZHONG Zhigang;ZHANG Xinghai;SHI Qingfei;MA Jun;XIE Qi(Automatic Control and Information College,Xiangtan University,Xiangtan Hunan 411105,China;China Information Consulting&Design Institute,Zhenzhou Henan 450007,China;Huawei Technologies Co.,Ltd.,Shenzhen Guangdong 518129,China;ZTE Corporation,Shanghai 200000,China;Hunan Branch of China Telecommunication,Changsha Hunan 410007,China)

机构地区：[1]湘潭大学自动化与电子信息学院,湖南湘潭411105 [2]中讯邮电咨询设计院有限公司郑州分公司,河南郑州450007 [3]华为技术有限公司,广东深圳518129 [4]中兴通讯股份有限公司,上海200000 [5]中国电信股份有限公司湖南分公司,湖南长沙410007

出　　处：《太赫兹科学与电子信息学报》2023年第12期1459-1463,共5页Journal of Terahertz Science and Electronic Information Technology

基　　金：湖南省自然科学基金资助项目(2020JJ4591)。

摘　　要：噪声对电磁辐射准确测量影响较大,特别是对一些弱信号电磁辐射测量,噪声影响不容忽视,需要对测量结果进行修正。目前传统修正办法是合理设置频谱分析仪参数,但不同频谱分析仪,参数设置会存在差别,这种方法通用性不强,而且对电磁辐射测量结果精确度提高不明显。对此,本文研究了频谱分析仪基底噪声及测量环境中噪声的特征,提出了基于高斯白噪声的修正方法,并通过实验进行分析验证。该方法能为电磁辐射准确测量与评估提供新的思路。The presence of noise has a great impact on the accurate measurement of electromagnetic radiation.The influence of noise cannot be ignored especially for the measurement of electromagnetic radiation of some weak signals.At present,the way to correct the electromagnetic radiation measurement results is to reasonably set the parameters of the spectrum analyzer,which is not universal because there exist differences in parameters setting for different spectrum analyzers.In this paper,by studying the characteristics of the base noise of the spectrum analyzer and the noise in the measurement environment,a suitable noise model is built and its rationality is proved through experiments.This method can provide a new way for the assessment and measurement of electromagnetic field exposure.

关 键 词：电磁辐射 频谱分析仪 信号发生器 噪声模型 

分 类 号：TN03[电子电信—物理电子学]