Based on the relationship between the group delay function and the cepstral coefficients, the denominator polynomial coefficients can be determined.
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。
The amplitude and group delay characteristics can be controlled exactly.
对幅频特性和群时延特性进行精细调整。
It results that the pulse deformation is caused by group delay of different modes.
得出多模波导脉冲畸变主要是模式不同的群延迟造成的。
Many published papers analysed range error by using group delay, it is not accurate enough.
以往的文献中，多用群时延来分析TT&C的测距误差，这种方法不够准确和全面。
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。
A method of Group Delay measurement in Digital Radio System has been introduced in this article.
本文介绍了一种数字微波通信系统的群时延测量方法。
The amplitude frequency response and group delay response of SAW TVIF filters have been measured.
并测试了其幅频特性和群延迟特性。
In addition, the sufficient and necessary conditions for the group delay to be negative are given.
同时给出了群时延为负的充分条件和必要条件。
First of all, the reasons of the effects of BPF group delay on the OFDM system is deduced in theory.
首先从理论上分析了射频BPF的群时延特性对OFDM系统产生影响的原因。
The result of the research supplies a reference to the design of group delay of BPF in the RF system.
本文的研究结论为射频系统中设计发射机BPF的群时延特性设计提供了参考依据。
The expressions for the bandwidth and group delay of MSFVW are derived under magnetostatic approximation.
在静磁近似下推导出了静磁正向体波带宽及群延迟的表达式。
The characters of phase shift and group delay are controlled by the number and position of zeroes and poles.
而滤波器的零点、极点个数及其位置又完全决定了其相移和群延迟的性质。
The purpose of optimizing phase response characteristic is to obtain flat group delay characteristic at Pass band.
而对相频特性优化的目的是要在通带内获得平坦的群时延特性。
Therefore, there is a perfect compromise between attenuation in stopband and group delay or loss variation in passband.
因此，它在带外衰减与带内幅度特性和带内群时延特性之间有了一个较好的折中。
A new method for calculating SC network sensitivity, group delay and group delay sensitivity is presented in this paper.
本文提出了一种计算sc网络灵敏度、群时延和群时延灵敏度的新方法。
The OFDM system is very strict in orthogonality of sub-carries, thus it is extremely sensitive to the filter group delay.
OFDM系统对子载波间的正交性要求极其严格，因此对滤波器群延时较敏感。
This paper is to research the effects of the RF BPF group delay characteristics on the bit error rate (BER) of the OFDM receiver.
本论文主要研究OFDM系统中的射频BPF的群时延特性对OFDM接收机误码率的影响。
The group delay, which characterizes the linear distortion of the system and network, is an important transmission characteristic.
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。
Group delay and dispersion characters are analyzed according to the above filter. In addition, the dynamic tunable feature is discussed.
详细分析了滤波器的群时延特性和色散特性，讨论了该滤波器的动态可调谐性质。
The deduced result shows that the non-ideal group delay characteristic of BPF will cause interference on the output signal of the OFDM system.
通过理论推导得出非理想的BPF的群时延特性，对系统输出信号会造成干扰。
A new magnetic field measurement based on the Faraday effect and the measurement of differential group delay (DGD) in fiber grating was proposed.
提出了一种利用光纤光栅中法拉第效应和测量差分群时延(DGD)的直接测量磁感应强度的新方法，给出了理论分析和实验结果。
The group delay specification of a channel is very important for rangingaccuracy of a tracking system and signal quality of a communication channel.
信道的群时延指标对跟踪系统的测量精度和通信系统的信号质量都十分重要。
A novel method for calculating group delay of multi-cavities filters based on multi-mirror theory is presented, which simplifies the calculation and.
基于多镜理论提出了一种新的多腔滤波器群延迟计算方法，简化了计算过程，使得计算不再受实际材料的限制。
The differential group delay (DGD) of the output light which passes through the E-O modulator PMD is estimated and verified by the experimental data.
藉由实验量测到的眼图，我们可以评估光载波经过电光调变器，所产生的群速色散与系统被极化色散现象影响的程度。
The difficulty of solving PMD lies in its randomness of differential group delay (DGD) between the principal states of polarization (PSP) and the change.
PMD问题的最大困难在于差分群延迟(DGD)和偏振主态(PSP)变化的随机性。
Flexible topology and coupling structures are used to realize transmission zeros, thereby enhancing the stop band rejection or making more flat group delay.
这种滤波器采用灵活的拓扑结构和耦合结构，可以实现传输零点，从而提高滤波器带外抑制特性，或者使群时延更加平坦。
According to the principle of circular convolution, a method of realizing non-causal equalizer is proposed to suppress the influence of the group delay effect.
其中针对群延迟的影响，根据循环卷积的原理，提出了一种实现非因果均衡器的方法。
Through these measurement and analyse, bring forward the method to reduce the chirp FBG device's group delay ripple, phase ripple and optimize it's PMD and PDL.
通过如上性能的分析和测试，提出了降低啁啾光纤光栅器件时延波动、相位波动，优化其偏振模色散与偏振相关损耗的方法。
Through these measurement and analyse, bring forward the method to reduce the chirp FBG device's group delay ripple, phase ripple and optimize it's PMD and PDL.
通过如上性能的分析和测试，提出了降低啁啾光纤光栅器件时延波动、相位波动，优化其偏振模色散与偏振相关损耗的方法。
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