preamplifier noise 中文意思是什麼

preamplifier noise 解釋
預放大噪聲
  • preamplifier : n. 【電學】前置放大器。
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  1. Secondly, compared with some other kinds of comparator structure and based on the preamplifier - latch fast - compare theory, a novel topology of cmos preamplifier latch comparator circuit is presented. considering trade - off between kickback noise and power dissipation, reference resistance value is optimized. according to the encode demands of different stage resolution, clock - control encode circuit is designed

    其後，在具體的子adc設計中，對比各比較器類型的優缺點，並基於預放大鎖存快速比較理論，提出一種新型高速低功耗預放大鎖存比較器電路拓撲;根據adc系統所允許的參考電壓最大波動限制，在回饋噪聲對輸入參考電平的影響和功耗之間折衷，確定優化的參考電阻串阻值;根據不同級精度的編碼要求，設計出時鐘控制編碼電路。
  2. Discuss the method to improve the efficiency of collecting signal and signal - noise ration. make the setup of detection device, high voltage supply of pmt and low - noise preamplifier ; doing lif detection experiment to green fluorescent dye

    詳細討論了提高熒光採集效率和信噪比的措施，製作了探測機構、光電倍增管的高壓供電電路和前置放大器。
  3. Research on cmos implementation of wlan transceiver rf front - end is done in this thesis. the transceiver uses the most used super - heterodyne architecture, its rf front - end consists of low noise amplifier, down - converter, up - converter, preamplifier, lo buffer and pll frequency synthesizer

    本論文研究無線局域網收發機射頻前端的cmos實現，該收發機採用超外差式的拓撲結構，其射頻前端主要由低噪聲放大器、下變頻器、上變頻器、末前級、本地振蕩信號緩沖器和鎖相環型頻率合成器等模塊組成。
  4. The major contents of this part is composed of the basic principle of the if circuit, the affection of the noise performance of the preamplifier to the whole system, the main constitutes of the receiver and their test results and the modulation circuit of the vco, etc. the test result shows that the performance of these circuits is fairly good

    內容涉及：中頻電路的基本原理及指標，前置放大電路的噪聲性能對整個系統性能的影響，接收機的主要組成部分（前置放大電路、 agc放大電路）的基本原理、實現方法、測試結果及分析和vco的調制信號產生電路的實現及測試結果。與前端聯調結果表明該部分電路性能良好。
  5. By designing the circuit structure of preamplifier and selecting new elements such as ultra low noise operational amplifier and linear opto - coupler, some difficulties in eeg acquisition is overcome and the common mode rejection ratio ( cmrr ) of preamplifier is highly increased. so eeg can be amplified and detected well

    通過對前置放大器等電路結構的精心設計，選用超低噪聲的集成運算放大器以及線性光耦合器等新器件，克服了腦電信號採集中經常遇到的一些困難，使前置放大器具有較高的共模抑制比，從而能夠較好地放大檢測出所需的腦電信號。
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