The oblique sounding is one of the powerful tools, by which an oblique ionogram is obtained with the group path or time delay against operating frequency.
斜向探测是电离层探测的主要方式之一，它能够获得电波传播群时延和频率关系的电离图。
The sample rate, filter corner frequency, settling time, group delay and output word rate will be reduced also, as these are proportional to the external clock frequency.
由于采样速率、滤波器转折频率、建立时间、群延迟和输出字速率与外部时钟频率呈比例变化关系，因此这些参数也会相应降低。
The reflection spectrum, time delay, and group velocity dispersion (GVD) of the gratings are analyzed.
并对此种光栅的反射谱，时延及群速度色散进行了理论分析；
Narrow band corrective functions with various group delay are introduced into the time domain.
在时域上引入了不同群时延的窄带校正函数。
Reflection spectrum, group time delay and group time delay ripple are analyzed by the method of transformation matrix.
用传输矩阵法分析反射谱、时延曲线和群时延抖动。
We can obtain much higher birefringence and larger difference of group time delay by choosing different structure parameter of fibers.
改变光子晶体光纤的结构参数，将获得更高的双折射和更大的群时延差。
An oblique Ionogram is a plot showing the group path or time delay against operating frequency when using swept frequency obliquely sounding between the transmitting and receiving site.
在已知固定地面距离的发射站和接收站之间的扫频斜向探测技术能够获得电波传播群时延对频率关系的斜测电离图。
The characteristics of frequency correlation and group time delay of ambient noise and ship radiated noise in the sea are studied.
本文研究海洋环境噪声与舰船噪声的频间相关与群延迟特性。
The characteristics of frequency correlation and group time delay of ambient noise and ship radiated noise in the sea are studied.
本文研究海洋环境噪声与舰船噪声的频间相关与群延迟特性。
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