propagation delay time的例句大全

time is important information for fast and direct acquisition of military code, and compression of signal's propagation delay time uncertainty is an effective means for it.

辅助长码直捕的一个最重要的先验信息是时间信息，卫星信号传播时延估计是减少时域搜索范围的一个重要方面。

In shallow water, conventional sonar performance deteriorates due to time delay spread and Doppler shift of acoustic wave propagation in waveguide environment.

在浅海波导环境中，因声波传播存在严重的时延扩展和多普勒频偏，常规声纳的性能下降，需要研究和发展新的水声信号处理方法。

Analyzing and Modeling for the Digital Signal Multipath Propagation Time Delay Spread Suffered from Huge Buildings in a City in Mobile Communication System The value of loss and time-delay is given by simulation calculating in different conditions.

高层建筑对脉冲多径时延展宽影响分析与建模根据仿真计算得到了不同紫外光通信条件下的损耗、时延和脉冲展宽。

first, the excess delay caused by the nlos propagation is estimated using the measured time of arrival ( toa) and the statistical property of nlos propagation;

该方法首先利用测量的波达时间（TOA）和NLOS传播时延的统计特性估计由NLOS引起的附加时延；

At last, researching the stress wave propagation velocity in burned-cut blasting and the process which rock throw out the hold, the author deduced to the theoretical formula of differential delay time between different breaking-in hole.

再次，研究了直线掏槽爆破中应力波传播速度和岩渣的抛出过程得出各掏槽孔之间微差爆破时间间隔的理论设计计算公式。

Time deviation due to propagation delay can be tolerated.

允许存在传输延迟所引起的时间漂移。

The time delay and pulse width also depend on propagation distance.

脉冲时间延迟和脉冲宽度还随传输距离发生变化。

The transit satellite signal was received at Zo-Se section of Shanghai Observatory with a special receiver 18-24, August 1980.The refrence time of USNO was derived through some corrections, such as propagation delay.

上海天文俞于1980年8月18&24日在佘山利用专用接收机接收该卫星信号，并加以传播延迟等修正后获得了美国海军天文台的基准时间。

A delay line based on the time of propagation of sound waves.

基于传播声波的时间的延滞线路。

It is found that train delay and delay propagation are related to the capacity utilization, buffer time and number of spare vehicles and auxiliary lines and these parameters should be kept matched among one another.

通过仿真分析发现，列车运行延误及其传播主要与能力利用率、缓冲时间、备车数量以及辅助线数量等因素有关，并且这些参数之间应该保持一定的合理匹配关系。

Propagation delay observations of BPM standard time signal with a continuous display system

BPM时号传播时延的连续观测与研究

The stability and space correlation about the sky wave propagation time-delay in Loran-C system are studied.

研究了罗兰 -C 天波传播时延的稳定性与空间相关性.

Moreover, MHH strategy can provide QoS guarantees to some extent, too. Compared with other previous strategies, the simulation results show that MHH strategy performs better with less time propagation delay and lower handover frequency.

仿真结果表明，同已有的切换策略相比，该策略能够提供一定程度的QoS保障，获得较好的系统性能，如较低的传播延时和较小的切换频率，具有很好的实用价值。

And several commonly used parameters which represent the electromagnetic wave propagation process are introduced, such as power delay profile, time dispersion parameters, coherence bandwidth and fading Doppler spectrum.

并就一些常用的表征电磁波传播过程的参数进行了介绍，如功率延迟分布图、时间色散参数、相干带宽和衰落多普勒频谱。

Continous observations of the propagation delay variation of BPM standard time signal were carried out in real time at Wuhan Ionospheric Observatory by a digital display system.

利用新研制的短波传播时延实时数字显示系统，在武汉电离层观象台对BPM时号的传播时延进行了长时间连续观测。