1) frequency-amplitude modulation
振幅-频率调制
1.
Due to the triaxiality of the Earth, there is a mechanism of the frequency-amplitude modulation in the Chandler wobble which might be a candidate to explain the correlation between the amplitude and the period of the Chandler wobble.
研究表明,三轴性使得极移轨迹变为短、长半轴分别与主惯性轴A、B平行的椭圆,同时使得极移和自转速率产生耦合效应,导致Chandler晃动的振幅-频率调制机制。
2) amplitude frequency modulation
振幅频率调制
3) FAM Frequency and Amplitude Modulated
频率振幅调制完毕
4) Frequency and amplitude
频率振幅
6) pulse-amplitude modulation-freuqency modulation(PAM/FM)
脉幅调制-频率调制
补充资料：振幅
物体或物理量在振动(或振荡)过程中偏离平衡状态时的最大值。如机械振动中振动质点离开平衡位置的最大位移，交流电的电流或电压的最大值。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条