摘要
提出了在线介质损耗测量的包含加性、调制性噪声的信号数学模型。简要介绍了目前介损在线测量方法中存在的问题,进而提出了基于最优相关滤波理论,采用数字、模拟混合乘法技术实现的最优相关滤波的技术方案,论证了该方案是抑制加性、调制性噪声及高次谐波影响测量结果的最优化方法,并给出了实验结果。
The mathematic models of dielectric loss including the adding noise and modulating noise are proposed. The problems existing in the on-line measurement are briefly presented, and the technical scheme based on the optimization filter theory, which is realized by digital-analog multiplication technology is proposed against these problem, and further more the error of it is analyzed in detail. The optimization correlation filter is testified and proved to be the best way to restrain the adding noise and high harmonic. Finally, the result of experiments are given.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2006年第2期111-114,共4页
Chinese Journal of Scientific Instrument
基金
NaturalScienceFoundationofHeLongjiangProvince
关键词
介质损耗
数字模拟混合乘法器
最优相关滤波
在线测量
Dielectric loss measurement Digital-analogmultiplication Optimization correlative filter （OCF） On-line
作者简介
梁原华 1945年11月出生 副教授主要研究方向为电气测量与数字信号处理E-mail：Zhanghaowo@yahoo．com．cn
