最小二乘法对群时延测量的改善  

Least-square method improving group delay measurement

作　　者：尹仲琪[1] 黄凯冬[1] 胡勇[1] 黄坤超[1] 

机构地区：[1]中国西南电子技术研究所,四川成都610036

出　　处：《电子测量与仪器学报》2009年第S1期364-367,共4页Journal of Electronic Measurement and Instrumentation

摘　　要：本文介绍了用矢量网络分析仪测量群时延的需求,提出了采用最小二乘法拟合改善测量不确定度的方法。该方法通过分析和大量实验,特别为改善窄带群时延的测量不确定度提供了应用和思路。This paper describes the needs of vector network analyzer for group delay measurement,and proposes a least-square method to improve the measurement uncertainty.Through analysis and a large number of experiments,it is shown that the method can be used to improve the narrowband group delay measurement uncertainty.

关 键 词：群时延 最小二乘法 测量不确定度 

分 类 号：TM935[电气工程—电力电子与电力传动]