Improvement of accuracy using majority decision for far field estimation by source modelling method

2007 18th International Zurich Symposium on Electromagnetic Compatibility Pub Date : 2007-11-27 DOI:10.1109/EMCZUR.2007.4388188

N. Matsuo, N. Kuwabara, Y. Okubo, M. Kawabata

{"title":"Improvement of accuracy using majority decision for far field estimation by source modelling method","authors":"N. Matsuo, N. Kuwabara, Y. Okubo, M. Kawabata","doi":"10.1109/EMCZUR.2007.4388188","DOIUrl":null,"url":null,"abstract":"The method of source modelling have been studied to estimate radiated emission at a distance of 10 m from the measured data at a distance of 3 m because the measurement facilities used the measurement at a distance of 10 m is expensive. However, the deviation between the measured and estimated values was more than 15 dB under a certain condition. In this paper, we study the method of improving estimation accuracy. The investigation indicated that the probability obtaining the optimum solution was majority. Therefore, to improve the estimation accuracy, we exclude the data that does not contain the range of standard deviation. The simulation using the calculated electric field was carried out. The imitated equipment was used as emission source, and the bilog-antenna was used as receiving antenna. The results indicated that the maximum deviation was reduced from 18 dB to 5dB. The radiated emission from a PC was estimated to verify the proposed estimation method. The result indicated the deviation was reduced from 4 dB to 3 dB.","PeriodicalId":397061,"journal":{"name":"2007 18th International Zurich Symposium on Electromagnetic Compatibility","volume":"9 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 18th International Zurich Symposium on Electromagnetic Compatibility","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EMCZUR.2007.4388188","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 1

Abstract

The method of source modelling have been studied to estimate radiated emission at a distance of 10 m from the measured data at a distance of 3 m because the measurement facilities used the measurement at a distance of 10 m is expensive. However, the deviation between the measured and estimated values was more than 15 dB under a certain condition. In this paper, we study the method of improving estimation accuracy. The investigation indicated that the probability obtaining the optimum solution was majority. Therefore, to improve the estimation accuracy, we exclude the data that does not contain the range of standard deviation. The simulation using the calculated electric field was carried out. The imitated equipment was used as emission source, and the bilog-antenna was used as receiving antenna. The results indicated that the maximum deviation was reduced from 18 dB to 5dB. The radiated emission from a PC was estimated to verify the proposed estimation method. The result indicated the deviation was reduced from 4 dB to 3 dB.

查看原文本刊更多论文

利用多数决策提高源建模法远场估计精度

由于使用10米距离测量的测量设施价格昂贵，因此研究了源模拟方法，以便从3米距离的测量数据估计10米距离的辐射发射。但在一定条件下，实测值与估计值的偏差大于15db。本文研究了提高估计精度的方法。研究表明，得到最优解的概率为大多数。因此，为了提高估计精度，我们排除了不包含标准差范围的数据。利用计算得到的电场进行了仿真。仿真装置作为发射源，生物天线作为接收天线。结果表明，最大偏差由18db减小到5dB。对一台PC机的辐射发射进行了估计，验证了所提出的估计方法。结果表明，偏差从4 dB减小到3 dB。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2007 18th International Zurich Symposium on Electromagnetic Compatibility

自引率

0.00%

发文量