front end circuit 中文意思是什麼

front end circuit 解釋
前置電路
  • front : n 1 前部，前面；正面；（劇場的）正面[前面]座位〈也可指全部觀眾席位〉 （opp back rear）。2 【軍事...
  • end : n 1 端，尖，末端，終點。2 邊緣；極點，極限。3 結局，結果。4 目的。5 最後，死。6 【紡織；印染】經...
  • circuit : n 1 （某一范圍的）周邊一圈；巡迴，周遊；巡迴路線[區域]；迂路。2 巡迴審判（區）；巡迴律師會。3 【...
  1. Low noise amplifier ( lna ) is widely used in front end of a received set of mobile communication 、 wireless radio 、 blueteech technology and so on 。 the active device is the core of the circuit and has significant effects on the whole equipment, therefore, the design of the active device is vital in lna

    微波低噪聲放大器（ lna ）廣泛應用於移動通訊、無線電、藍牙技術等的rf前端。 lna中的有源器件是整個電路的核心，對整個放大器電路的性能有著重要的影響，因此有源器件的設計是lna的關鍵技術之一。
  2. The paper is to design analogue lowpass filtering circuits with high performances. the circuits are used directly as anti - alias filters in an analogue front - end of video decoder ic ( integrated circuit )

    =本文旨在設計高性能的模擬低通濾波電路，用作視頻解碼晶元模擬前端中的抗混疊濾波器。
  3. With an aim at this problem, this paper suggests the modulation scheme with dc bus voltage ripple by using the front - end active power factor correct circuit based on the analysis of necessary conditions of producing acoustic resonances

    針對這一現象，在分析產生聲諧振的必要條件的基礎上，重點提出了利用前級有源功率因數校正電路的直流母線脈動電壓的調制方案。
  4. This product is a full electron construction in which its front - end adopts pressure sensor with baffle filled oil chip. output signal is sent the data to microprocessor from high - precision, low temperature drift and high - reliability amplification circuit and a d convert circuit, after operating, to transform by high - precision d a convert circuit into standard signal output

    該產品為全電子結構，前端採用帶隔離膜充油芯體的壓力傳感器，輸出信號由高精度低溫漂和高可靠性的放大電路和模數轉換電路將數據送入微處理器，經運算後由高精度數模轉換電路變換為標準信號輸出。
  5. The whole pwm circuit contains two subcircuit, the front - end is pwm module that make up of the counter that based on nine mosfet true - single - phase - clock d flip - flop ; the back - end is demodulated module, which is consist of a three order chebyshev low - pass filter used trans - conductor capacitor. all the subcircuits are simulated. at last, an approving simulated result of the whole circuit is given too

    在調制部分，利用九管單相時鐘d觸發器構成計數器，並由此組成了脈沖寬度調制電路，同時給出了在典型溫度下的模擬結果;在解調部分，介紹了低通濾波器從無源到有源的設計方法，設計了三階切比雪夫低通跨導電容濾波器，同樣給出了相應的模擬結果;最後，作為將脈沖寬度調制電路和濾波器作為整體電路，以脈沖調頻波為輸入進行了模擬，取得了令人滿意的結果。
  6. In the design of the rf front - end, the effect of the low voltage power supply must be considered since the low voltage power supply limits the voltage swing of the circuit nodes and may affect the dc operation point, power gain and linearity of the rf front - end

    本論文實現的收發機射頻前端採用了1 . 8v的電源電壓，射頻前端各模塊的設計都考慮到了低電源電壓對直流工作點、增益和線性度的影響。
  7. At last, the layout is verified with cadence verification tools, dracula. drc ( design rule cherker ) and lvs ( layout versus schematic ) have been done successfully, which improve the feasibility of the layout design. so the whole ic design flow, from the front end to the back end of a circuit design, is completed

    接著應用無錫上華標準0 . 6umcmos工藝提供的元器件模型參數進行了電路模擬，並根據尺寸設計規則設計了整體電路的的版圖，最後運用cadence中的版圖驗證工具集dracula對電路版圖成功地進行了drc （ designrulecherker ） 、 lvs （ layoutversusschematic ）驗證，證明了電路版圖設計的可行性，完成了ic設計從前端到後端的設計流程。
  8. The major content of this paper is digital implementation of b - mode ultrasound diagnosis. with studying carefully the theory and analog circuit realization of analog ultrasound system, we propose a design of digitized front - end of b - mode ultrasound diagnosis based on fpga

    在深入研究b超理論基礎和模擬實現方法的前提下，結合目前廣泛應用的fpga技術，對數字化b超前端系統的實現進行了初步研究，並提出一種可行的設計方案。
  9. The measuring instrument for blade resonant frequency mainly consists of a front end circuit, a signal collecting circuit, and a coiilputing and displaying circuit. this paper provides a detailed hardware diagran, software flow chart and design process, expounds the operation and calibration of the instrument, and analyses the measuring data in detail according to different conditions

    葉片共振頻率測試儀主要由前置電路，信號採集電路及運算和顯示電路組成，文中給出了詳細的硬體電路圖、軟體流程圖及設計過程，闡述了該儀器的使用和校驗方法，並針對不同的狀況對測量數據進行詳細的分析。
  10. Finally, a ku - band receiver combined with lna, mixer and filter is designed, and a complete flow chart for the design process of the front - end circuit is given. in the end, some rf transceiver examples such as microwave power transfer system, satellite communication receiver system and phs cell station system are introduced and analyzed

    最後結合前面各章內容，給出了一個ku波段射頻前端接收機完整設計實例，並給出了包含微波無線供電系統、衛星接收機和phs基站在內的多個射頻前端電路的實例分析。
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