modulated amplifier
英 [ˈmɒdjuleɪtɪd ˈæmplɪfaɪə(r)]
美 [ˈmɑːdʒəleɪtɪd ˈæmplɪfaɪər]
网络 调变放大器
双语例句
- The power of the modulated carrier wave is increased by the RF power amplifier.
射频功率放大器增加了调变载波的功率。调制器载（波）频（率） - The object signals are modulated by the scanning mirror periodically, thus the object signals on the image plane of detector are to be modulated into periodic signals in temporal domain, and then the background radiation is deducted by two detectors and a differential amplifier.
振动反射镜以一定周期调制目标信号，使之成为时间域上的周期信号，再采用双路探测器差分方法，实时扣除背景辐射的影响。 - The results show: when the modulated Raman pump is sited following each amplifier, the random walk of dark solitons induced by amplifier spontaneous emission noise is reduced apparently, and the interaction between two dark solitons is suppressed well.
研究结果表明：在暗孤子传输系统中，每个放大器后插入调制拉曼泵浦进行传输控制，不仅可以有效地抑制暗孤子的时间抖动，同时还明显降低了暗孤子间的相互作用。 - The calculation of coaxial output cavities, simulation of microwave extraction from a modulated intense relativistic electron beams, optimization on beams and output cavity geometry parameters, as well as the experiments of microwave extraction for an S-band long-pulse-intense-current relativistic klystron amplifier are described in this paper.
介绍了S波段强流相对论速调管放大器（RKA）同轴输出腔内束波转换效率和腔主要参数的计算、微波提取的粒子模拟和优化以及实验。 - The paper presented the theory of sine-wave and square-wave modulated high-voltage amplifier and deduced the formula for calculating its efficiency.
介绍了基于正弦波和方波调制的高压放大器的不同工作原理，并对其出力系数进行了推导。 - In the experiments of reduction of the atomic beam passing through aqueous vapour, the atomic beam was modulated and the signal coming from a quadrupole spectrometer was amplified by a lock-in amplifier.
在原子束-水蒸汽散射实验中，原子束被调制，四极质谱计的信号由锁定放大器放大。 - While there are few researches dedicated to modulated thermal lens, which can acquire the physical character of the sample by the frequency response of the signal and also has the advantage of using lock-in amplifier to improve the signal-noise ratio.
而调制双光束热透镜技术能利用锁相放大器从噪声中提取微弱信号，提高信噪比。同时，调制激光热透镜技术能有效利用信号的频率响应来研究和检测材料的物理性质。 - The experimental study for the two forms of high-voltage amplifier s shows that the efficiency of square wave modulated high-voltage amplifier increases more than 80%.
对高压放大器进行实验研究的结果表明，方波高压放大器比正弦波高压放大器出力系数增加80%以上。 - Design of a pulsewidth modulated amplifier in a radar servo system
雷达伺服系统脉冲调宽功率放大器的设计 - But the nonlinearity of RF power amplifier induced distortion of digital multi-level modulated signal which have high peak-to-average power ratio. Amplifier can only work on very low operating point, with lower output power and efficiency.
但是射频功率放大器的非线性特性使得峰均比很高的数字多阶调制信号产生了很大的失真，放大器只能工作在很低的工作点，输出功率和效率都非常低。 - The sound signal output from amplifier equals to the modulated PWM signal. Thus, the function of PWM modulator can directly affects the fidelity of Class-D amplifier.
现有的D类放大器一般采用PWM控制技术，放大器输出的音频信号等于经过调制的PWM信号通过扬声器后的信号，因此，PWM调制器的性能将直接影响到D类放大器的保真度。