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。
Amplitude-Frequency Modulation Mechanism of Chandler Wobble of Triaxial Earth
三轴地球Chandler晃动的振幅-频率调制机制
To vary the frequency, amplitude, phase, or other characteristic of(electromagnetic waves).
调制变换（电磁波的）频率，振幅，周相或其它特点
Control of amplitude and frequency of limit cycles in nonlinear oscillatory systems
非线性振动系统极限环振幅与频率的控制
Control and Experiment Research in Stepless Adjust Frequency and Amplitude Component of Vibration Roller;
振动压路机无级调频调幅机构控制及试验研究
"For radio transmission, information is imparted to a carrier wave by varying (modulating) its amplitude, frequency, or duration."
用于无线电传输时,信号用载波传送,通过改变(调制)载波的振幅、频率或间隔来实现。
Transmission of measured magnitudes by radio or telephony, with suitably coded modulation ?(e.g.,?amplitude, frequency, phase, pulse)over a distance.
通过无线电或电话，用适当的编码调制(如振幅、频率、相位、脉冲)把被测量的值发送到远方。
The frequency and amplitude of vibration are monitored.
振动的频率与振幅受到监控。
Alignment frequency and amplitude, and pulse timing parameters and amplitude, can be finely adjusted to suit a wide variety of cell types.
排队频率和振幅，以及脉冲的时间和振幅参数能够精确调节以适应不同细胞类型。
optimum amplitude and phase modulation
最佳振幅与相位调制
Abstract: Frequency automatic tracking and amplitude stabilizing are two important characteristics of ultrasonic machining power.
文摘:频率跟踪和恒定振幅控制是超声加工电源两个重要的特性。
Study on Frequency & Amplitude Adjustment of Intelligent Vibratory Compactors;
智能振动压路机的无级调频调幅研究
vary the frequency, amplitude, phase, or other characteristic of (electromagnetic waves).
改变（电波）频率、振幅、状态或其它特征。
reproducing channel amplitude frequency response
重放通路振幅 频率响应特性
Showing the vibrating displacement, Acceleration and frequency value immediately.
具即时显示振动幅加速度及频率功能。
Here the brainwaves are of the greatest amplitude and slowest frequency.
它是振幅最大、频率最低的一种脑电波。
A research on HHT amplitude and frequency restoration technique and its application
HHT振幅频率恢复处理技术研究与应用
The error probability of binary AM is greater than for binary FM by a factor of at least 6.
二进制调幅的误差概率比二进制调频至少大5倍.
The error probability of binary AM is greater than of binary FM by a factor of at least 6.
二进制调幅的误差概率比二进制调频至少大五倍。
