modulated amplifier 中文意思是什麼

modulated amplifier 解釋
被調放大器
  1. The power of the modulated carrier wave is increased by the rf power amplifier

    射頻功率放大器增加了調變載波的功率。
  2. Simulation and modeling of self - modulated re - entrant beam crossed - field amplifier

    自調制重入式正交場放大器的模擬設計
  3. Since the envelope of modulated signal fluctuates, these methods generate unwanted intermodulation distortion ( imd ) products in a nonlinear radio frequency ( rf ) power amplifier ( pa ). so it is necessary to use linearization technique to reduce the adjacent channel interference ( aci )

    但包絡變化的調制信號經過非線性射頻功放后會產生交調分量，因此必須採用線性化技術來減少由此產生的鄰道干擾。
  4. According to the eer theory, using the amplified envelope signal as the power supply of the class - d amplifier, the envelope will modulate the magnitude of the rf signal. the modulated impulse rf signal is added to the impedance match circuit, so the amplified am signal is achieved

    將放大的包絡信號作為class - d載頻放大器的電源，根據eer原理， class - d載頻放大器輸出載頻信號的幅度將受到包絡信號的線性調制，達到同時實現對載頻信號的放大和am調制的目的。
  5. Based the research on the laser beam drift feedback control technique, analysing the beam drift and its frequency components, a laser beam directional stability method is studied in the thesis in detail, with its measurement and control circuit system that combines the laser beam intensity modulation and the beam drift feedback control technique. in this method, at first the laser beam intensity is modulated with the acoustooptic modulator, then the lock - in amplifier is applied to detect and demodulate the modulating signal, at last a feedback control signal is generated by the dsp control circuit at last, including : 1

    本文在原有的激光光束漂移量反饋控制準直技術的基礎上，對光束漂移量信號的數據和頻譜進行了分析，重點研究了一種集聲光調制光強與光束漂移量反饋控制準直技術於一體的激光光束方向穩定方法及其測控電路系統，該方法通過聲光調制實現光強調制，接著通過鎖相放大電路檢測並解調調制信號，然後通過dsp控制電路進一步對光束的漂移量進行反饋控制。
  6. In order to verify memory effects of nonlinear power amplifier ( pa ) and to design and optimize pa with reducing memory effects, this paper analyzes existence of electrical and thermal memory effects with different tone spacing two - tone input signal and modulated signal source through mathematical derivation and advanced design system ( ads ) software simulation, and presents a method which can optimize pa with memory effects

    摘要為了證實非線性功放記憶效應的存在同時為了設計和優化功放以減小記憶效應，通過理論推導和ads模擬的方法分析了不同間隔的雙音輸入和調制輸入的情況下電記憶和熱記憶效應的存在，同時提出了種優化功放記憶效應性能的方法。
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