A amplitude shift keying (ASK) demodulation method based on adaptive filtering was discussed in this paper.

研究了一种基于自适应滤波算法的振幅移位键控(ask)信号的方法。

youdao

Remember the one-dimensional spring that we had a period which was independent of the amplitude?

记得吗，一维的弹簧，周期和振幅，无关？

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So, for example, if we were looking at the actual wave function, we would say that these parts here have a positive amplitude, and in here we have a negative amplitude.

我们看，一个波函数，我们说，它这部分幅值，为正，这部分幅值为负，当我们看。

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And you can think about that if you think about a standing wave, for example, where you can have amplitude at many different values of x, so an amplitude at many different distances, but you also have areas where there is a amplitude.

你们可以想象一下驻波，在不同ｘ处,可以有不同的振幅，在不同的距离有不同的振幅，但在某些地方振幅等于０．

麻省理工公开课 - 化学原理课程节选

So, for example, if we were looking at the actual wave function, we would say that these parts here have a positive amplitude, and in here we have a negative amplitude.

我们看，一个波函数,我们说，它这部分幅值，为正,这部分幅值为负，当我们看。

麻省理工公开课 - 化学原理课程节选

And when we're talking about the amplitude of the wave, we're talking about the deviation from that average level. So, if we define the average level as zero, you can have either a positive amplitude or a negative amplitude.

当我们讨论一个波的振幅时,我们说的是偏离平均位置的量,如果我们把平均位置,定义为零的话，那幅值不是,正的就是负的，有时候人们在。

麻省理工公开课 - 化学原理课程节选

Then the amplitude of Powers' voice falls a notch or two, with the men complying and the situation seemingly under control.

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Rush, with his baritonal amplitude and fondness for mock pomp, makes the actor a vain, hollow man, grasping at something that he knows has eluded him his entire life.

NEWYORKER: The Eye of the Storm