amplitude variation meaning in English

波幅变化
幅度变动
幅度变化

Such amplitude variations would be predicted on the basis of principles governing seismic velocities in heterogeneous media .
按照在非均匀介质内确定地震速度的原理，应能预测这样的振幅变化。
In communications , the amplitude variations of an amplitude modulated carrier wave
在通信技术中,调幅载波的幅度变化图。
Because the noise that affects radio signals is partly , but not completely , manifested in amplitude variations , wideband fm receivers are inherently less sensitive to noise
因为影响到无线电信号的噪音只是部分的，而不是整体出现于波幅变化中，调频宽频的接收器自身对噪音不够敏感。
In communications , to reduce a signal ' s parameter , such as bandwidth , amplitude variation , duration , and so on , but with the preservation of the basic information content and purpose
在通信技术中，减少信号的参数或特征值，如带宽、幅度变化、持续时间等。但该信号的基本信息内容和用途保持不变。
A device that converts a property of an input signal , such as frequency or phase , into an amplitude variation , depending on how the signal differs from a standard or reference signal
鉴别器，鉴频器一种将输入信号的某一特征，如频率或相位转变为幅度变化装置，其变化大小因信号与标准或参考信号的不同程度而异