1) group delay
群延时
1.
this paper discusses group delay and phase delay of resonance loop as well as their application to TV technology.
讨论了谐振回路的群延时与相延时以及它们在电视技术中的应用。
2.
SAW transversal filters of 500 MHz central requency with small group delay variation by adopting single phase unidirectional tranduders were fabricated, ZnO/IDT/Diamond structure was produced for high SAW velocity and was applied to a 5 GHz SAW filters fabrication.
本文内容包括声表面波滤波器的基本理论和设计方法、制作工艺与测试方法、滤波器对电路性能的影响等方面的研究内容，并进行了声表面波滤波器和声表面波谐振器的设计、仿真、制作与测试，主要工作包括：采用单相单向换能器制作了低群延时波动的中心频率500 MHz的声表面波横向滤波器；采用ZnO/IDT/Diamond结构获得高的声表面波传播速度，制作并测试了中心频率5 GHz的声表面波横向滤波器。
3.
Meanwhile,the effect of the serial inductance on the group delay of this LNA was discussed for optimizing LB.
选用SiGe HBT作为电路的有源器件,利用基极串联电感LB与反馈支路、晶体管Miller效应所产生的寄生电容形成的T型匹配网络取得了输入阻抗的良好匹配,并就基极串联电感值对系统群延时的影响进行了讨论,优化LB以满足兼容群延时与宽带匹配的要求。
2) group delay ripple
群时延
1.
It is demonstrated that the apodization sharpness parameter plays a more important role in the behavior of the mean dispersion,group delay ripple and some other spectral responses even than the type of apodization profile itself.
75时,色散均值与理想色散之间的偏离量最小,群时延影响较小,反射带宽较大,且光栅长度较短。
2.
The positive hyperbolic-tangent profile is taken for example and it will demonstrate that a proper selection of the apodization strength factor can effectively improve the results obtaining minimum deviation of the dispersion from the required value,maximum reflection bandwidth and minimum group delay ripple impact.
以双曲正切函数为例,证明适当选择切趾强度参数,可以获得最小色散背离、最大的反射带宽和最小的群时延影响。
3) Group delay
群时延
1.
Research on the Effects of BPF Group Delay on the Performance of OFDM System;
BPF群时延对OFDM接收机性能影响的研究
2.
Analyse on measure technology for group delay of frequency conversion system
变频系统群时延测量技术分析
4) group delay(GD)
群时延(GD)
5) differential group delay(DGD)
群时延差
6) differential group delay
群时延差
1.
Through changing the parameters, many effects caused by the first-order polarization mode dispersion can be gotten, and differential group delay, pulse broadens and eye-diagrams in different syst.
通过改变通信系统参数,研究一阶偏振模色散对不同通信系统的影响,分析在不同系统参数情况下的偏振模色散群时延差、信号脉冲展宽和信号眼图,并讨论了不同码型对偏振模色散的影响。
2.
A new method is proposed to measure the output states of polarization of single mode fiber with a polarizer and an optical spectrum analyzer, the differential group delay (DGD) of polarization mode dispersion (PMD) can be acquired.
提出利用检偏器和光谱仪同时测量单模光纤各个波长的输出偏振态 ,从而测量出偏振模色散群时延差 ,这种方法和传统方法相比 ,测量时间大为节省 ,降低了偏振模色散随时间变化而引起的测量误差 ,提高了测量精度。
补充资料：陪群公登箕山赋得群字
【诗文】：
许由去已远，冥莫见幽坟。世薄人不贵，兹山唯白云。
宁知三千岁，复有尧为君。时佐激颓俗，登箕挹清芬。
高节虽旦暮，邈与洪崖群。
【注释】：
【出处】：
全唐诗：卷882-9
许由去已远，冥莫见幽坟。世薄人不贵，兹山唯白云。
宁知三千岁，复有尧为君。时佐激颓俗，登箕挹清芬。
高节虽旦暮，邈与洪崖群。
【注释】：
【出处】：
全唐诗：卷882-9
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条