延时

In Broad Band ,Curcuit signal graphics is achieved by oscillograph ,and packet loss rate , throughput, Latency , back-to-back and so on.;In VoIP, the device can communicate with FXO 3804 of TAIWAN Welltech and DT60 of BEIJING JIAXUN FEIHONG, At that time, Ethereal and PalmTool of PA1688 testing are introduced; In CATV, flatness ,signal graphics of radio frequency are tested by CATV stroboscope.

使用示波器测试数据部分的电路信号波形，使用网络分析仪测试丢包率、吞吐量、时延和背压等以太网指标的测试，并记录最终测试结果；电话部分主要是与台湾伟桥的FXO 3804和北京佳讯飞鸿的E1数字中继网关DT60，实现基于H.323协议的VoIP电话通信，同时介绍使用Ethereal软件和PA1688专用测试工具PalmTool的测试分析情况；电视部分主要是使用CATV频谱仪测试输出射频信号的平坦度、信号波形等分析信号质量，并通过实际电视接收观察输出的射频信号质量。

In order to reduce the effects of packet dropout on the system, a dropout compensator is added to the system, and a model for networked control systems with stochastic delays and dropout compensators is constructed, Based on this model, the sufficient conditions for the system asymptotical stability,γ suboptimum and optimum are given, and the output feedback control law for system H(subscript ∞) optimal control is obtained.

为了降低数据包丢失对系统稳定性的影响，在系统中增加了补偿器，并建立了具有丢包补偿器和随机网络诱导时延的NCS模型。在此模型的基础上，给出了系统渐近稳定和γ次优、最优的充分条件，并且获得了系统最优H控制的输出反馈控制律。

Because of the superfluous parameters in the model, it is unnecessary to get the exact priori knowledge concerning the stmcture and dead time of system. This property is not only convenient for modeling, but also useful for enhancing the accuracy and robustness of predictive model.

由于参数化模型有冗余参数，无须掌握有关模型结构和系统纯时延的确切的先验知识，不仅给建模带来极大的方便，而且有利于提高预测精度和鲁棒性。6。

Hen symmetric array is used, the arithmetic average of the XWVDs of the multiple group symmetric sensors will achieve extra enhancement of the TFD.

igner—Ville分布，在各个时刻XWVD的幅值最大点上，其相位是该点对应的频率与信号到达两阵元的时延的乘积。

The performances of success rate, throughput, and delay are analyzed. The influences of the main parameters such as the number of channels and the gain of spreading spectrum are simulated.

该文对基于离散FDM的FHMA/CDMA相结合的多址接入方式的数据分组成功发送率、网络吞吐量以及信息时延等性能指标进行了理论分析，并仿真分析了码分信道数、扩频增益等主要参数对网络性能所产生的影响。

So how to reduce the transmission delay on the throughput efficiency of research now has become an important part.

所以如何减小传送时延对吞吐效率的影响成了现在研究的一个重要部分。

The simulation result shows that the new algorithm can increase the throughput of network and improve delay.

仿真结果表明，该算法可以显著改善节点的排队性能，提高网络的吞吐量改进时延性能。

The prediction for the route gravitational redshift is consistent with the predictions for the deflection of light and the time dilation of the returned radar wave.

途中引力红移的预言与光的偏折和雷达回波时延的预言相洽。

Methods of time delay estimation of scatted signal are discussed.

本文主要的研究是基于民用机会照射源的无源雷达系统的关键技术之一：探测目标散射信号的时延估计问题。

4D seismic data is interpreted based on the diffence of time-lapse seismic data.

四维地震利用时延三维地震资料的差异来解释地下储层流体的变化。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷