直流電位差計 的英文怎麼說

中文拼音 [zhíliúdiànwèichā]
直流電位差計 英文
d. c. potentiometer
  • : Ⅰ形容詞1 (成直線的; 硬挺的) straight; stiff 2 (跟地面垂直的; 從上到下的; 從前到后的) erect; v...
  • : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
  • : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
  • : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
  • : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
  • : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
  • 直流 : direct current (dc); constant current; steady current; continuous current; zero frequency curre...
  1. The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail

    首先,在闡述i / q正交調制基本原理的基礎上,通過對誤矢量和鄰近通道功率泄漏的詳細分析,定性、定量地討論了各種非理想路因素(如相不平衡、幅度不平衡、等)對調制器性能的影響;其次,介紹了鎖相環的工作原理和基本組成部分,包括鎖相環的設和環路濾波器的設,特別詳述了荷泵鎖相頻率源;第三,介紹了採用接調制技術模擬衛星信號的射頻前端的設;最後,對整個接射頻調制系統進行測試,結果基本上達到了課題要求。
  2. However, df pre - processing is not required in a interferometer direction finder. it only makes use of the phase relations or differences of sensors disposed at different position. azimuth and elevation are caculated from the phase differences or displayed directly on a crt drived by the voltage or current from the phase differences

    干涉儀測向不必進行測向信號預處理而是接或間接求取在空間上分開的傳感器上感應勢之間的相關系,即干涉相,方角或仰角是接由干涉相算得到,或將兩基線正交的天線陣的干涉相轉化為驅動壓()分別加到crt陰極顯示器的垂偏轉線圈和水平偏轉線圈,模擬顯示出來波方,干涉儀測向為典型的相測向方法。
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