closed loop synchronization 中文意思是什麼

closed loop synchronization 解釋
閉環同步
  • closed : adj. 1. 關閉著的，封閉著的；密閉著的；保密的。2. 〈美國〉準備好了的；定了契約的。3. 【語音】閉音節的。
  • loop : n 1 （用線、帶等打成的）圈，環，匝，框，環孔，線圈；【醫學】（常 the loop）宮內避孕環。2 環狀物，...
  • synchronization : n. 同時；同時性；【物理學】同步，同期；【電影】同期[步]錄音，配音譯制。
  1. First, it analyzes the working principle and some features of the system, such as the circulating current characteristics, power distribution characteristics, and characteristics about closed loop regulation of voltage. then it goes on to the study of some typical control methods, and designs on this basis, a parallel controller using a synchronization control strategy of racing to merging and a load - sharing strategy combined with feedback control and drooped control

    文中，首先通過建立系統的數學模型，分析了逆變電源並聯運行的工作原理以及並聯系統的一些主要特性，包括它的環流特性、功率特性和電壓閉環調節特性；在此基礎上，又研究了幾種典型的並聯運行控制方式；然後，採用搶占與並發相結合的同步控制方式和反饋與下垂特性相結合的負載均分控制設計了並聯控制器。
  2. There are two uncertain factor about it : the phase of the pn code and the doppler - shift. after capturing the received signal successfully, the traditional ds receiver always uses a delay locked loop ( dll ) to synchronize the pn code and then uses a costas loop to realize the carrier synchronization. this complex closed - loop structure not only take long time to realize the synchronization, but also has the defect of “ hang up ”

    傳統的擴頻接收機通常在捕獲偽碼信號后利用遲早門鑒相的延時鎖定環來實現偽碼的精同步，解擴后利用科斯塔斯環實現載波同步，這種閉環結構不僅同步時間長、結構復雜，而且鎖相環還存在所謂的「 hang - up 」現象。
  3. A feedforward or open loop method is used to estimate the parameters, and then more accurate feedback or closed loop method is used to complete synchronization

    首先利用前向估測方法對參數進行預估計，在此基礎上結合後向反饋方法完成同步。
  4. The problem of local parameter optimization in low synchronization bunch _ rank speed - control system has been researched in this paper. the paper analyzed the problems existing in trational double closed _ loop bunch _ rank speed - control system, and pointed out the influence on performance of system caused by nonlinear parameter with timing variety. added a local mit self _ adaptive controller to double _ closed loop bunch _ rank speed - control system. the results of computer imitating indicated that under same disturbance the performance of system has been improved obviously. 5figs., 1tab., 4refs

    對低同步串級調速系統中局部參數最優化問題進行了分析研究.從理論上分析了傳統的雙閉環串級調速系統中存在的問題，指出了系統中非線性時變參數對系統性能的影響.在雙閉環串級調速系統中增加局部mit自適應規則.計算機模擬結果表明:在相同的擾動作用下，系統的性能得到明顯改善.圖5 ，表1 ，參4
  5. In chapter 1, the basic principle and structure of the integrated anti - interference data transmission system are introduced. in chapter 2, the theory of maximum likelihood ( ml ) carrier synchronization parameter estimation ( frequency estimation and phase estimation ) are expatiated, and the closed - loop recovery methods ( phase - locked loop, pll ) and some other arithmetic in common use are introduced

    第二章對最大似然（ ml ）載波同步參數估計（頻率估計和相位估計）理論進行了闡述，對常用的閉環恢復法即鎖相環（ pll ）法和一些載波同步參數處理方法進行了介紹，並對常用的載波頻率估計方法作了分析比較。
  6. The control system adopts high capability singlechip, aduc812 ( 8052 - compatible core ). it can expediently achieve a / d ( 12bit ), d / a ( 12bit ), phase compensation of the rotor position singles, and speed closed - loop control, and fully resolves the well - off switch from the out - synchronization to the in - synchronization. the practical prototype of the system is developed for the control of a dentist " sensorless brushless dc drill motor

    系統採用高性能aduc812 （兼容8052內核）單片機作為微處理器，方便的實現a / d （ 12位） 、 d / a （ 12位） 、電機轉子位置信號相位檢測與補償以及系統速度閉環控制，很好地解決了無位置傳感器bldcm從外同步運行階段到內同步運行階段的順利切換。
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