The spread and compress of millimeter wave pulse frequency spectrum will happen in Doppler Effect during rain.
在降雨条件下,多普勒效应后毫米波脉冲频谱发生展宽和压缩。
This paper presents the design and realization of a high resolution millimeter wave pulse radar signal simulator.
本文讨论了一种毫米波高分辨率脉冲雷达信号模拟器的设计和实现。
The characteristic frequency of body-wave spectra carries the information of the duration of source body-wave pulse.
体波波谱特征频率携带着震源体波脉冲持续时间的信息。
Sweden some university's researchers shine mouse's test report with the similar mobile phone radiation's emblem wave pulse to indicate.
瑞典某大学的研究人员用类似移动电话辐射的徽波脉冲去照射老鼠的实验报告表明。
The theoretical and experimental development in the interaction of electromagnetic wave pulse with relativistic ionization front is introduced.
介绍了电磁波与相对论电离波前相互作用的理论和实验进展情况。
The two signal sources are jointly controlled to produce a three-item square-wave pulse synchronous frequency conversion and voltage regulation signal source.
两信号源统一控制便产生三项方波脉冲同步变频调压信号源。
Objective: to investigate the effect of long wave pulse electromagnetic field on operational workers, so as to provide basis for making preventive measures for them.
目的:研究长波脉冲电磁场对作业人员健康的影响,为制订防护措施提供依据。
The Sine wave Pulse Width Modulation (SPWM) is used to reduce the wastage and the noise of the motor more effectively, as comparing to the equal pulse width modulated PWM.
相对于等宽脉宽调制PWM,正弦波脉宽调制SPWM可以有效地降低电动机的损耗和噪声。
In this paper, the anti-scaling effect of EWP which used square-wave pulse current have been studied, the data show that the anti-scaling rate is 100% when the voltage is 2v.
文中对采用方波脉冲电流的电子水处理器的阻垢效果进行了研究。结果表明,当采用平均电压为2 V的方波脉冲电流时,对水样阻垢率达到100%,且能一定程度地降低水样的总碱度和总硬度。
Describing the three methods of the pulse generator signal transmission, the paper focuses on the basic principles and application status of the continuous-wave pulse generator.
介绍了脉冲发生器脉冲信号传输的三种工作方式,重点介绍了连续波脉冲发生器的基本原理及应用情况。
Wave shaping circuits derive the other desired waveforms — square, pulse, triangle, etc. — from the sawtooth output by the core circuit.
波整形电路从核心电路的锯齿波得到其他想要的波形——方波,脉冲波,三角波。
The most likely culprits are things that transmit a signal like a cell phone or a computer operating in Wi-Fi mode which emits an electronic pulse or wave.
最有可能的元凶是手机或带有无线上网功能的电脑一类进行信号传输的设备,这些设备都发送电子脉冲或者电子波。
The most likely culprits are things that transmit a signal, like a cell phone or a computer operating in Wi-Fi mode, which emits an electronic pulse or wave.
最有可能的元凶是手机或带有无线上网功能的电脑一类进行信号传输的设备,这些设备都发送电子脉冲或者电子波。
Previous experiments based on macroscopic electromagnetic wave propagation (involving lots of photons) have shown that the optical precursor is the fastest part in the propagation of an optical pulse.
先前基于宏观电磁波(包含大量光子)的实验已经证明,光前驱是光脉冲在传播过程中最快的部分。
In a recent study of 526 women and men, researchers found that those who were the most flexible on a sit-and-reach test also had the most supple arteries, as measured by a pulse-wave pressure test.
最近,在对526名男女的调查中,研究人员发现,在坐地前伸测试中最灵活的人也有最柔软的动脉,这个结果和脉冲波压力测试一样。
Through studying the mechanism of the electric exploding, an inductive storage circuit with two electric explosive switches is designed to produce shot nanosecond pulse by chopped wave.
论述了电爆炸导体的爆炸机制,设计了两个电爆炸断路开关的电感储能电路,通过斩波来产生一个纳秒级大电流的单触发脉冲。
In other words, pulse width modulation is a modulation technique for generating variable width pulses to represent the amplitude of an input analog signal or wave.
或者换句话说,脉宽调制是一种调制技术,为发电可变脉冲宽度为代表的幅值输入模拟信号或波。
In comparison with ordinary laser processing, the advantages of ultrashort pulse and short wave to all kinds of materials are presented.
对比普通激光加工,超短脉冲和短波长对各种材料的优势作用日趋显现。
The pulse widths and spacings are arranged so that their weighted average produces a sine wave.
如此设置的脉冲宽度和间距使它的加权平均值恰好是正弦波。
The influence of the principal parameters of optical chirp reversal devices on ability to restore signal wave form and pulse duration has been analysed and simulated.
分析和数值模拟了用瞬态简并四波混频实现光学啁啾反转的器件的主要参数对恢复信号波形和脉冲宽度能力的影响。
If the modulation rate is high, it is possible to smooth out the pulse train using passive electronic filters and recover an average analog wave form.
如果调制率高,是有可能顺利进行,脉冲列车使用被动电子过滤器和收回平均模拟波形。
Pulse width Modulation device is a circuit which can produce square wave signal with fixed period and adjustable pulse duration ratio (pulse width).
脉宽调制器是一种能够产生周期固定而占空比(脉宽)可调的方波信号的电路。
But we also know there are some devices for measuring pulse wave velocity over the aorta, between carotid and femoral artery.
我们知道还有一些仪器可以测量主动脉脉搏波速率,在颈动脉和股动脉之间。
It shows that the signal will become bad with the increase of transmission velocity and distance by comparing the wave figure and eye diagram of input and output pulse.
通过比较输入与输出信号脉冲波形和眼图发现,随着传输速率和传输距离的增加输出信号劣化。
In this paper the propagation of pulse wave on and the mutual coupling between conductors of a multi-conductor transmission system are analysed from the basic voltage and current equations.
本文从电压和电流的基本方程出发,分析脉冲波在多导线传输系统的传播现象和多导线传输系统导线间的相互耦合作用。
The measuring function of short persistence oscillograph can be extended by adding pulse wave collecting circuit and signal processing circuit.
通过增加脉搏波采集电路和信号处理电路,扩展短余辉电子示波器的测量功能。
The propagation process of pulse wave in the cable and influence of cable length on overvoltage and wavefront time of winding are discussed in this paper.
讨论了脉冲波在电缆中的传播过程以及电缆长度对线圈端的过电压和脉冲上升时间的影响。
Objective to investigate the effect of rosuvastatin on complement, complement regulatory proteins and aortic pulse wave velocity in patients with hyperlipidemia.
目的:探讨瑞舒伐他汀对高脂血症患者补体、补体调节蛋白及主动脉脉搏波速度的影响。
MW DC arc furnace uses the current 2-transformer rectifier bridge thyristor controlled by adjusting the angle trigger to compose 24 pulse wave rectifier circuit.
MW直流电弧的电流控制采用2台整流变压器控制,通过调节晶闸管桥触发角构成24脉波整流电路。
We have studied on the realization and significance of nonlinear pulse wave transmitting theory, which establishes the foundation of improving the system.
本文还探讨了非线性脉搏波传播理论的实现方法及意义,为系统进一步的改进奠定了基础。
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