群延迟是信号处理中的一个重要概念,在水声工程、无损探伤、振动分析、地震波检测声等诸多领域都有广泛应用。群延迟是信号通过被测器件的各正弦分量的振幅包络的时延,并且是各频率分量的函数,或指描述相位变化随着频率变化的快慢程度的量。
群延迟 [电子] group delay
群延迟时间 groupdelaytime ; Group Delay ; [电子] group delay time ; group code
波群延迟计 group delay meter
差分群延迟 DGD ; Differential Group Delay
群延迟色散 GDD ; group delay dispersion
群延迟变化 group delay variation ; GDV
群延迟频率 group delay frequency
群延迟参考频率 Group delay Reference frequency
或称为群延迟滤波 Group delay filter
群延迟至7频率 Group delay at 7 frequencies
We discuss the dependence of amplitude distortion, phase distortion and pulse broadening on group delay of single pulse.
讨论了幅度失真、相位失真和脉冲展宽对信号群延迟的影响。
参考来源 - 光纤中受激布里渊散射慢光及脉冲失真管理研究·2,447,543篇论文数据,部分数据来源于NoteExpress
根据群延迟函数与倒谱系数之间的关系,可以确定分母的多项式系数。
Based on the relationship between the group delay function and the cepstral coefficients, the denominator polynomial coefficients can be determined.
并测试了其幅频特性和群延迟特性。
The amplitude frequency response and group delay response of SAW TVIF filters have been measured.
得出多模波导脉冲畸变主要是模式不同的群延迟造成的。
It results that the pulse deformation is caused by group delay of different modes.
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