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Error Analysis for the Dielectric Loss Factor Measurement Based on Harmonic Analysis
Author(s): 
Pages: 67-71,34
Year: Issue:  3
Journal: TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY

Keyword:  介损测量谐波分析正交滤波解析变换;
Abstract: 用谐波分析法进行介损测量时,很容易受到系统频率波动的影响,从而降低测量的准确度.本文在分析该算法误差机理的基础上得出了频率波动下引起测量误差的两个主要因素:信号初相角的差异和谐波干扰,并据此提出了解析变换和低通滤波两种信号预处理方法.数值仿真表明改进的谐波分析算法具有良好的效果,并通过现场实测数据进一步验证了该算法的有效性.
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