modulating wave

Therefore making diagnosis of the local defect needs to demodulate the vibration to get the modulating wave .

因此要进行滚动轴承缺陷诊断，必须先采用一定的解调技术提取调制波。

Utilizing the technology of autocorrelation , random signal was chosen as the modulating wave , which can solve the problem of adaptability for simulating waves to body .

运用自相关技术，筛选随机信号作为调制波，解决电刺激波形对机体适应性问题。设计并研制了可供临床实验的治疗仪样机。

The modulating wave . Constellation Diagram and power spectrum density curve is observed by simulation .

通过仿真观察到调制与解调信号的波形，星座图以及QAM信号功率谱密度曲线，并对仿真结果进行了分析。

The results show that the induction heat power of magnetic field amplitude-modulated with sine wave and square wave is unrelated to the frequency of modulating wave .

结果表明：方波和正弦波调幅磁场的感应热功率都与调幅波频率无关。

It will give patients treatment by means of the amplified amplitude modulating wave current that can be obtained form medium frequency amplitude modulated by the low frequency pulse signal .

它将有关低频脉冲信号对中频调幅后，利用被放大的调幅波电流对人体进行治疗。

If modulating wave has secondary harmonic , there are two sidebands in both sides of meshing frequency f m and its doubling freqency 2f m.

若调制波含有2次谐波，则在啮合频率fm和它的2倍频2fm两侧各形成2个边带。

But for distributed faults , if modulating wave has single frequency , there is only one sideband in both sides of meshing frequency f m and its doubling frequency 2f m respectively .

而对于分布故障，若调制波为单频，则理论上只在啮合频率fm和它的2倍频2fm两侧各形成1个边带；

When the modulator ( or optical chopper ) of the NIR spectrophotometer was error , the frequency and shape of modulating wave would be changed , and the measuring signal of the spectrophotometer must be smaller .

调制器的误差会引起调制波频率和形状的变化，从而影响近红外光谱仪器检测信号的强度。

The detailed principles and parameters of each analog circuit for modulating wave are discussed and the control flow is also introduced . The spectra of the PWM signal produced by DSP with frequency jittering are presented to verify the calculation results .

本文详细地讨论了各模拟调制波形电路的产生过程和参数以及数字调制的流程，给出了由DSP产生的抖动频率的PWM波的测量频谱并进行分析。

Nonlinear modulating solitary wave on an elastic pipe-wall

弹性管壁的非线性调制孤波

Results : According to these phenomena , electronic modulating T wave change and ventricular fusion wave were all the normal change of pacing electrocardiogram , and both pacing and sensing disfunctions were the characteristic of pacemaker malfunction .

结果：正常起搏心电图中可见室性融合波、手风琴现象及电张调整性T波改变，起搏器功能障碍表现为起搏与感知功能异常。

Modulating the ultrasonic wave , intensity and period of the light pulse will change .

调节超声波，可改变光脉冲的强度和周期。

Based on the study of working principle of traditional sine pulse width modulator , a new SPWM modulating method by dual-square wave composing technology is presented in this paper .

提出了一种用双方波合成技术实现的SPWM新方法，该方法可以简化硬件电路、减少运算时间。