摘要
群时延是系统和网络的一项重要传输特性,它表征系统和网络的线性失真。讨论了采用高性能PNA系列矢量网络分析仪测量变频器群时延的方法,并结合实例对实现测试的关键点和技巧进行了阐述,最后给出测试结果及不确定度的分析。
The group delay, which characterizes the linear distortion of the system and network, is an important transmission characteristic. The method of measuring the converter＇ s group delay by the high-performance PNA vector network analyzer is discussed. The key points and skills to realize the measurement are expounded combining with specific examples. Finally, the measurement results and uncertainty are analyzed.
出处
《时间频率学报》
CSCD
2005年第1期54-60,共7页
Journal of Time and Frequency
关键词
群时延
矢量网络分析仪
变频器
测量
group delay
vector network analyzer
converter
measurement
