time-vector method

Pseudo-chaotic time hopping is a modulation method which is suitable for ultra wide-bandwidth impulse radio communication systems.

伪混沌跳时是一种适用于超宽带脉冲无线电通信系统的调制方法。

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The failure mode and failure load of the shell are based on the results of ANSYS numerical simulation in which the time history analysis method is used and the seismic load is applied step by step until the destruction of shell model.

被预测网壳的破坏模式和破坏荷载是以网壳的ANSYS数值模拟的结果为依据，利用时程分析的方法，逐级施加地震荷载直到网壳模型破坏的方法得到的。

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This paper gives a serial acquisition method which can be easily implemented in time hopping ultra-wide band system.

根据超宽带系统多径延迟的特点，该文给出一种易于实现的超宽带跳时串行捕获方法；

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Therefore the dynamic time history analysis method is adopted to carry out the anti-seismic performance of beam bridge. According to pile-soil interaction, multi-support excitation and traveling-wave effect of earthquake wave, models are established separately to calculate and analyze.

因此对该桥的抗震性能分析主要采用动态时程分析方法，考虑桩-土相互作用以及地震波多点激励与行波效应，分别建立模型进行计算分析。

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In order to reduce the interference to other communications systems during transmission, the method of spread spectrum is proposed, including the time hopping and direct sequence.

为了减小在传输过程中对其他通信系统产生干扰，提出了频谱扩展的方法，包括时间跳跃和直接序列。

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