晶體混頻器 的英文怎麼說

中文拼音 [jīnghúnbīn]
晶體混頻器 英文
crystal mixer
  • : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
  • : 體構詞成分。
  • : 混形容詞1. (渾濁) muddy; turbid2. (糊塗; 不明事理) foolish; stupid
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  • 晶體 : [晶體學] crystal; vitrella; crystal body; crystalloid; x-tal
  1. Delay line oscillator is composed of broadband amprifer adjustable attenuator and saw sensor device. after output signal of delay line oscillator is smoothed, it mixes with 109mhz local oscillation signal. its differential frequency signal is smoothed by low - pass filter trimmed by shaping circuit and processed by digital processing circuit

    延遲線振蕩由寬帶放大、可調衰減和聲表面波質量傳感件構成。延遲線振蕩輸出信號經濾波后與109mhz的本機振蕩輸出信號相,通過低通濾波取其差,並經整形後由數字信號處理電路處理。
  2. Balanced crystal mixer

    平衡晶體混頻器
  3. According to the following design theory : the dsp calculates in real time and produces three phases spwm waves to control the on or off of the 6 igbts in ipm respectively. ipm then inverts the commutated single phase direct current ( insulated gate bipolar transistor ) into three phases alternating current. when modulated signals of spwm are changed, the on - off time of switches also changes, so as to the voltage and frequency of output signals

    本文提出了一種基於dsp (數字信號處理tms320f240 )的通用的三相間接變電源系統,利用分段同步調製法和合查表法,實時計算不同率下的采樣周期、電壓幅值、輸出脈寬,產生雙極性spwm波形,經驅動放大後用于ipm ( intelligentpowermodule )中的絕緣柵雙極型管柵級驅動,以控制電源的輸出電壓和率,實現變電源的智能數字控制。
  4. With the theory of wavelet transform and reversible integer - to - integer wavelet transforms based on shifting frame used in image / video compression field introduced, a new real - time implement of speck algorithm using dsp chip is provided. then the technology of motion estimation and motion compensation is discussed and an adaptive technique for the wavelet video codec to reduce the " block artifact " is presented. and the implement of the wavelet video compression system using adv611 chip is discussed next with the performance emulation result

    在系統討論了小波理論在圖像視壓縮編碼領域的應用后,結合dsp技術提出一種基於dsp應用的實時低存儲需求的改進speck圖像編碼;隨后探討基於小波變換的實時視編碼的實現,在論述運動估計與補償技術的基礎上,針對應用空域運動估計補償技術的低比特率小波視編碼提出一種自適應消除塊效應的技術;並討論了基於adv611元的視壓縮系統的壓縮性能;最後提出一種基於dsp平臺具有極低時延的小波視合編碼方案,對該方案的壓縮性能進行了討論並給出初步的硬實現方案。
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