1、

There are some differences in waveforms, test voltage levels and technical specifications of ring wave generator circuits, which have regulated by several immunity test standardization documents.

不同标准的振铃波抗扰度试验信号波形定义、试验电压等级以及试验信号发生器技术指标等都存在一定的差异。

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2、

And the waveforms of the learned pictures in the two tests were also different and there was a possibility that the test task was an important factor for the differences.

两测验中学过图形的波形波幅也存在一定的差异,测验任务可能是一个影响因素。

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3、

Numerical results denoted that the dynamic failure processes are controlled by three factors: i.e. tensile strength of rock, amplitudes of stress waves and waveforms of stress waves.

数值模拟表明,在应力波作用下的岩石破裂取决于三个因素:材料的抗拉强度、应力波的应力幅值以及应力波的波形。

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4、

Test wave recording, DVR-2000B excitation regulator is able to record test waveforms by manual startup, such as10% step response, de-excitation, cutting load, etc.

试验滤波功能,DVR-2000B励磁调节器能够通过手动启动记录实验波形,如10%的阶跃响应,灭磁,卸载等。

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5、

When a thin interbed is thinner than 0. 1m, two groups of reflection waves merge into one, reflection energy weakens, and their waveforms are similar to those which appear in the case of fractures existing outside a borehole.

当薄层厚度小于0.1m时,两级反射波逐渐重叠变为一组反射波,反射波能量也逐渐减弱,并与井外存在裂缝时的波形特征相似。

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6、

Which implemented immediately on hardware design of electronic ballast for HID lamps for three-level structure, and testing the work waveforms of the main parts. Experimental results show that the three-tier structure has reached a design of electronic ballast requirements.

实现了立即亮HID灯三级结构电子镇流器的硬件设计过程,并测试得出了主要部分的工作波形,实验结果表明三级结构电子镇流器已经达到了设计要求。

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7、

Then the voltage waveforms of the Three-phase bridge controlled rectifier and 12-pulse waveform controlled circuit under the fault and normal condition are analyzed and researched in detail, the faults states are summarized and classified according to the voltage waveforms indifferent circumstance.

其次对三相桥式整流电路、12脉波可控整流电路等大功率电力电子装置整流电路正常运行及故障状态下整流电压波形进行了详细分析和研究,根据电压波形对故障状态进行了总结和归类。

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8、

Further more, a detailed comparative study of two-level system and three-level system is conducted. The simulation results, three-phase current waveforms, the electromagnetic torque waveform are given.

并且与两电平系统从三相电流波形、电磁转矩波形进行了详细的对比分析,分析发现采用三电平变流器后,电流的谐波明显减少,更加接近正弦波,电磁转矩脉动得到改善。

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9、

The input voltage and current of uncontrolled single-phase and three-phase rectifier with inductance and capacitance were measured, and the actual waveforms were consistent with the theoretical analysis basically.

并分别对感容滤波的单相、三相不可控整流电路的输入电压和电流进行了测量,其实际波形与理论分析基本吻合。

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10、

Analysis in time domain based on Jones matrix theory is given for the synthesizer. The algorithm comparing of Fourier series coefficients in positive-direction is used to design the synthesizer producing other types of periodical waveforms in time domain.

利用琼斯理论对该综合器进行了理论分析,根据扩展傅里叶级数系数正向对比法,实现了其他类型的周期性时域波形。

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11、

In time domain measurement of the electromagnetic constants of materials, the measured waveforms need to be analyzed by FFT in order to obtain the spectrum of dielectric constant.

在时域测量时,需要通过FFT才能求得介电常数的频谱特性,而实际测得的波形往往存在多次反射,给求取一个纯净的反射波进行频谱分析带来不便。

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12、

In order to reduce the effects of MUI, this paper presents a novel waveform design method based on wavelet& combined waveforms, and this waveform is used in a multiple access system with time hopping ( TH) sequence.

为了降低多用户干扰的影响,提出了一种新型的基于正交小波的脉冲波形构造方法&组合波形,并且将这种波形连同跳时序列一起应用到多用户系统中。

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13、

The output voltage waveforms of matrix converter which is based on the space vector modulation are analysed under the unbalanced input voltage. A time variant modulation ratio method is proposed.

在非对称输入电压情况下,对基于双空间矢量调制的矩阵变换器的输出电压波形进行了分析,提出了利用时变调制比改善输出电压波形的方法。

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14、

It has the advantages of fine frequency resolution, short frequency conversion time, wide modulation bandwidth and controlling facility, and has capability of generating the different waveforms.

它具有频率分辨率高(可达uHz)、频率转换时间短(可达ns)、输出频率带宽很宽、程控灵活等优点,并具有产生多种常用波形的能力。

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15、

This two methods are based on standard waveforms, can analyze in real time the waveform data on-line, realize automatic identification of waveform in time domain.

这两种方法都是以标准波形为依据,能够实时在线对监测波形数据进行分析,实现动态时域波形的自动识别。

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16、

This paper introduces an automatic analysis technology and the software of pulse waveforms in both time-domain and frequency-domain.

本文介绍脉冲波形的时域和频域的自动分析技术及其软件。

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17、

Analysis on the Waveforms of Detonator Output Measured with Manganin Piezoresistance Method

锰铜压阻法测量雷管输出的压力波形分析

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18、

The test system has a good dynamic response, real-time display and intelligence, which can reveal the current waveforms in vector controlled induction-motor drive synchronously and precisely.

本测试系统的动态反应性、实时显示效果和智能性都良好,能同步准确的反映感应电机矢量控制的电流波形。

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19、

The date of waveforms was saved in two ports RAM, which make the input and output ports relatively independent.

波形数据的存储采用双端口RAM,使波形数据的输入输出相对独立,避免了系统总线隔离,使系统简单可靠。

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20、

Combining the MIMO radar technology and the time reversal technology, the signal-to-noise ratio is improved by tuning the transmitted waveforms to the propagation medium and the target scattering characteristics.

将MIMO雷达技术与时间反转技术结合起来,通过与传播媒介及目标的散射特性相匹配,自适应调整发射波形以提高信噪比。

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