查询词典 waveform digitization

Hydraulic pile hammer is one of ideal prefabricated pile driving machines because it can adjust stress waveform ,decrease stress peak value,prolong effectual act

认为与桩等波阻的细长状锤体能够产生理想的应力波波形；在桩锤重量一定的情况下，可针对不同的地质情况和桩，通过选择不同刚

Results of numerical simulations were validated by measuring the piston displacement, cylinder pressure, discharge valve displacement. The calculated displacement waveform of the discharge valve is accordant with the experimental one, which demonstrates that the valve model is reasonable.

通过分析比较不同工况下排气阀位移的计算值与实验值，可以看到阀片位移波形的变化趋势是一致的，位移峰值相互对应，说明模拟计算的结果基本正确，建立的气阀模型是合理的。

In the case of plane-parallel electrodes.the variation between the voltage wave form of two dielectric plates and the voltage waveform of power supply was theoretically discussed-the times of different discharge shapes were respectively calculated-and what is more.the movement of charge ions was demonstrated.

从理论上对介质阻挡放电的放电气隙上的电压变化进行了系统分析，完整地讨论了放电过程中气隙上的电压波形变化以及各波形阶段对应的时间。并进一步确定了放电离子在不同波形阶段的运动情况。

The channel estimation is formed by projecting a give user's spreading waveform into the estimated noise subspace and nulling the projection.

利用信号向量在噪声子空间的投影为零的性质，可以估计出信道的参数。

This study has developed a LabVIEW-based digital control system, which features the following functions: adjustment of the distorted waveforms, pulse count to the quarter pitch, waveform subdivision by Lissajous circle, back propagation neural network and PID control, and the position feedback control of the stage.

本项研究开发了基于Labview的数字控制系统，该系统具有失真波形的调整、1/4栅距脉冲计数、基于Lissajous圆环的波形细分、后传神经网络和PID控制以及平台的位置反馈控制等特征。

The general problems of UWB-SAR waveform design were investigated from the aspects of working frequency and polarization pattern.

论文共分三大部分：第一部分对UWB-SAR信号设计的理论与应用进行了研究。

Methods Patients with nodules and polyps of the vocal fold were examined and analysed by EGG.EGG waveform of nodules and polyps pre-and post-operation were compared.

用EGG对声带息肉和声带小结患者进行测试和分析，并对手术的患者做了术前术后的对比。

But the same time for guaranteeing mode curve satisfy the whole boundary condition , at other vibration direction the waveform number isn t only.

在两个振动方向上所采用的振动曲线形态要与相应的边界条件所限定的变形形态相吻合。

The transient charging behavior under dynamic positive bias stress could be observed and analyzed by varying the duty cycles of stress pulse waveform at a specific frequency, and a universal charge trapping model has been proved in terms of the effective stress time.

此外，我们可以藉由改变在特定频率下之应力脉冲波形的责任周期大小，来观察及分析动态正偏压应力测试下的瞬间充电行为，并证实一以有效应力时间为参数的通用电荷捕捉模型。

Firstly, PLL linear model is established in order for the comparative analysis between phase step error response and phase rectangular-pulse error response under different damping ratio. The ideal PD waveform expression is figured out.

首先通过建立锁相环的线性化模型，对比分析了不同阻尼系数的相位阶跃误差响应和矩形相位误差响应，推导了理想状态下鉴相器输出的波形表达式。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。