例句與造句

1. Voltage - controlled oscillator
   壓控振蕩器
2. Recently , much attention has been paid to the thin films of tunable dielectric materials for their applications in microwave agile devices , such as phase shifters , tunable filters , and voltage - controlled oscillators ( vcos )
   隨著導(dǎo)彈等快速進(jìn)攻性武器的發(fā)展，對(duì)雷達(dá)的功能提出了許多新的要求。采用機(jī)械掃描方式的天線已很難適應(yīng)新的作戰(zhàn)要求。
3. With the rapid advancement of process and technology , especially the realization of on - chip passive elements such as inductors and varactors , the on - chip implementation of voltage - controlled oscillators ( vcos ) which are necessary in wireless transceivers has become easy
   在工藝技術(shù)的飛速進(jìn)步下,尤其是電感和變?nèi)莨艿葻o源器件片上實(shí)現(xiàn)問題的解決,壓控振蕩器已經(jīng)可以實(shí)現(xiàn)單片集成,這對(duì)降低收發(fā)機(jī)的成本十分關(guān)鍵。
4. The voltage - controlled oscillator and the dual - modulus prescaler are the most crucial blocks in the pll frequency synthesizer . two kinds of voltage - controlled oscillator ( the quadrature voltage - controlled oscillator based on symmetrical spiral inductors and differential varactors , and the voltage - controlled oscillator with wide tuning range based on mos varactors ) and two kinds of prescaler ( the prescaler using phase - switching techniques , and the prescaler using dynamic circuit techniques ) are proposed . then , the complete pll frequency synthesizer is implemented , in which
   壓控振蕩器和雙模預(yù)分頻器是鎖相環(huán)型頻率合成器中最關(guān)鍵的兩個(gè)模塊，本論文分別實(shí)現(xiàn)了兩種類型的壓控振蕩器（采用對(duì)稱螺旋型電感和差分二極管型容抗管的正交壓控振蕩器和使用mos型容抗管的大調(diào)諧范圍壓控振蕩器）和兩種類型的雙模預(yù)分頻器（使用相位開關(guān)技術(shù)的雙模預(yù)分頻器和使用動(dòng)態(tài)電路技術(shù)的雙模預(yù)分頻器） 。
5. The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed , which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system , and simulator program of dynamic and steady condition is established , which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system , a comparison is made between predicted and experimental characteristics , experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion , harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched , which cancelled the low harmonic and improve the system performance
   通過對(duì)電機(jī)的kron變換和對(duì)稱分量變換，建立了系統(tǒng)較精確的數(shù)學(xué)模型，編制了系統(tǒng)動(dòng)態(tài)及穩(wěn)態(tài)運(yùn)行的仿真計(jì)算程序分別計(jì)算系統(tǒng)的動(dòng)態(tài)和穩(wěn)態(tài)性能。通過對(duì)系統(tǒng)的具體參數(shù)進(jìn)行了仿真運(yùn)算和實(shí)驗(yàn)研究，實(shí)驗(yàn)和仿真結(jié)果進(jìn)行比較，說明實(shí)驗(yàn)和理論較為一致，并從系統(tǒng)效率、轉(zhuǎn)矩脈動(dòng)及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動(dòng)機(jī)組成的變頻調(diào)速系統(tǒng)加以比較。在此基礎(chǔ)上，對(duì)兩相逆變器供電-異步電動(dòng)機(jī)系統(tǒng)使用諧波抑制pwm控制進(jìn)行了研究，由于減少了低次諧波，改善了系統(tǒng)性能。
6. It's difficult to find voltage-controlled oscillator in a sentence. 用voltage-controlled oscillator造句挺難的