The high efficiency digital audio amplifier technology [2]is adopted to develop the power supply modulator and the Class-D switching amplifier technology[3] is adopted to develop the high efficiency RF amplifier.
将放大的包络信号作为Class-D载频放大器的电源，根据EER原理，Class-D载频放大器输出载频信号的幅度将受到包络信号的线性调制，达到同时实现对载频信号的放大和AM调制的目的。
An algorithm to detect carrier frequency of DS signals based on blind source separation;
一种基于盲源分离的直扩信号载频检测算法
Research on coded digital signal carrier frequency;
叠加数字信号载频选择的研究
Blind estimation of MPSK carrier frequency;
MPSK信号载频盲估计
Experiments on strain pseudoelastic property of shape memory alloy(SMA) were carried out and the Influence of temperature,cyclic number and loading frequency on pseudoelastic property of SMA were investigated.
对形状记忆合金(Shape Memory Alloy,简称SMA)的超弹性特性进行了试验研究,得到了SMA的超弹性特性随环境温度、循环加载圈数以及加载频率等因素的变化规律,为进一步开发SMA被动阻尼器奠定了基础。
The frequency of strain burst, the amplitude of strain bursts, B, and the shear stress drop, D, were discussed in terms of the applied strain amplitude and cyclic loading frequency.
研究了应变幅和加载频率对［123］Cu－16％Al单晶在循环形变中的应变突发行为的影响。
Fatigue crack growth behavior of DZ17G at room temperature is studied at different testing conditions of loading direction and loading frequency.
研究了定向凝固高温合金ＤＺ１７Ｇ在不同加载取向及加载频率条件下的室温疲劳裂纹扩展行为。