fast variable 中文意思是什麼
fast variable
解釋
快變量-
Bifurcation of homoclinicorbits in fast variable space
快變量空間中的同宿軌道分支 -
The last part of the thsis presents a novel fast response digital variable optical attenuator. this device is driven by two electromagnetic driving units rather not stepper motors. a wide attenuation ( 40db ) was fully digitized and can be set by a certain number of driving pulses
論文最後針對現有數字可調光衰減器均由步進電機驅動，體積龐大，造價高昂且速度緩慢的缺點，利用微反射單元設計了一種高速數字式可調光衰減器。 -
Abstract : the theory of variable structure control of sing ular nonlinear control systems was considered based on the singular nonlinear systems itself by employing the method of geography, and gives the sufficient condition of existence of variable structure control and approximation theory of real sliding mode. it is shown that sliding condition only guarantee the slow - varying state of real sliding mode approach that of ideal sliding mode but not guarantee the fast - varying state of real sliding mode approach that of ideal sliding mode. the method applied for studying normal nonlinear system can not be used directely to singular nonlinear system
文摘:利用幾何方法，從廣義非線性系統本身出發，研究了廣義非線性控制系統的變結構控制理論，給出了系統存在變結構控制的充分條件及實際滑動模的近似定理.從所得結論可知，滑動條件僅能保證實際滑動模的慢變狀態趨近於理想滑動模的慢變狀態，而不能保證實際滑動模的快變狀態趨近於理想滑動模的快變狀態，研究正常非線性系統的方法已不能簡單地被利用到廣義非線性系統 -
With the development of the converter drive technology, the requirement for the variable frequency drive are becoming more and more strict especially for the modern converter drive employing fast switching semiconductor igbt ， though it has high pulse frequency and refreshing time of only nanoseconds, it generates emf that has adverse effect on the environment
隨著頻率控制傳動技術的發展，對頻率變速傳動系統的要求越來越高，尤其是對採用快速切換的igbt半導體現代變頻技術，盡管脈沖頻率高或更斷時間僅毫微秒內，但它們會對周圍環境產生電磁場。 -
The variable polarity power supply circuit uses two stages full - bridge inverter, the former inverter is regarded as a constant - current source with fast dynamic response, and supplys energy for the second one, and the latter one is to produce variable polarity current excellently, and low - frequency pulse current by variable polarity power supply is used to reduce input energy and control the shape of weld bead while welding. a series of high - frequency pulse current is superposed on direct - current - electrode - negative ( dcen ) current through the high - frequency pulse power supply, which is used to compress the arc and improve process of crystallization
其中變極性電源採用二次全橋逆變結構，一次逆變提供快速的響應速率並給二次逆變提供能量，二次逆變提供良好的變極性性能，使輸出能量最優化，並用其低頻電流特性減小電弧線能量，控制焊縫成形;高頻脈沖電源提供的高頻電流疊加在反極性電流dcen上，利用電流的高頻特性壓縮電弧，改善焊縫金屬結晶過程。 -
Then we uses the scheme that has the variable gain based on the kalman filtering model realize two steps phase - locks ring circuit track technology, this kind has the advantage that when changed the gain the digital phase - lock link to be allowed simultaneously to realize the fast capture and the reliable track, the simulation analyzes its capture performance
模擬結果表明，自編碼直擴通信系統的編碼捕獲性能具有可行性。採用基於卡爾曼濾波模型實現具有可變增益的二階鎖相環路的跟蹤技術，這種具有時變增益的數字鎖相環可以同時實現快速捕獲和可靠跟蹤，其捕獲性能要比傳統數字鎖相環改善很多。 -
Table name or view name variable fast load
「表名變量或視圖名變量快速加載」 -
Table name or view name variable - fast load
表名變量或視圖名變量-快速加載 -
Based on x - filtered lms algorithm and - filtered lms algorithm adaptive inverse control, we use a new variable step size lms algorithm. adding little computation, variable step size lms algorithm can result in fast convergence speed and low residual error simultaneously. the adaptive feedback control can counteract the beginning error of the system
在原來的x -濾波lms演算法自適應逆控制和-濾波lms演算法自適應逆控制方法的基礎上，引入了新的變步長lms演算法，在計算量增加不多的前提下，能同時獲得較快的收斂速度和較小的穩態誤差；引入自適應的反饋補償控制克服了被控系統的直流零頻漂移，使控制系統在初開始工作階段快速收斂；還引入自適應擾動消除器，它能最大限度的消除擾動。 -
However, cfb technology itself is developing fast, and the combustion process of cfb is highly non - linear, with high uncertainty, large time delay and high multi - variable coupling, making the process complicated. so far, the research on the combustion mechanism and its fuzziness is immature, therefore, there is no good model for real - time control of the process
但是，迄今為止循環流化床鍋爐仍然是一種工藝上不斷改進的新型鍋爐，它的燃燒過程具有高度的非線性、不確定性、時變和大滯后，及多變量耦合嚴重等復雜特性，尤其是目前對其燃燒機理和模糊化的研究不太成熟，還沒有能用於實時控制的完善的模型。 -
With the fast development of computer technology and the specialization trend of 3d gis, it is necessary and realizable to building a visible, digital, informational and intelligentized system with the three - dimensional visualization foundation, only in which variable of data and information can be fed back to users in time, dynamic and straight
隨著計算機技術的快速發展以及三維地理信息系統的部門化的發展趨勢，構建一個可視化、數字化、信息化、智能化的水利領域三維可視化系統不僅是必要的而且是可行的，要實現這樣一個系統，三維可視化是基礎，只有在可視化的環境中才能將各種數據和信息及時、動態、直觀地反饋給用戶。 -
Under different conditions, for example, with variable additional resists or system parameters, the system applies the variable structure controller to adjust the speed system with train. the results of simulation show the variable structure control can achieve a fast response, high stability under parametric variations and disturbances, with no overshoot. additionally, it has stability for the adjustment speed of atcs and provides the comfortable speed, for the travelers, and improves the system performance
採用變結構理論分析在不同情況下，如附加阻力變化，系統參數變化等，模擬滑模變結構控制器控制的列車自動調速控制系統，模擬結果表明，滑模變結構控制的列車自動調速控制系統能實現速度響應快、無超調，系統對參數的攝動和外部干擾不敏感，實現列車自動控制系統的速度調節的穩定性，保證旅客的舒適，改善了系統性能。 -
Combining the methods of in - phase variable - frequency adjusting speed with brushless dc control, this system uses repmsm ( rare earth permanent magnet synchronous motor ) as executing motor. this system makes full use of characteristic of high static precision and dynamic fast response
以正弦波永磁同步電動機為執行電機，採用他控式磁通軌跡法變頻調速和無刷直流方式調速方法相結合的控制策略，充分發揮了同步電機的穩態高精度和直流電機的動態快速性的特點。 -
Aim at overcoming the disadvantages of conventional pid control algorithm, which adopts fixed - parameters, author introduces a variable parameters pid speed regulator which gives much improvement on anti - disturbance. this control system has fast respondence when increasing or decreasing speed at emergency work conditions
針對常規pi演算法控制參數固定的缺點，筆者採用了一種變參數pid調速器，使柴油主機調速系統抗干擾性有較大改善，在應急工況下系統對于加、減速車令具有快速響應性。 -
Combining the methods of in - phase variable - frequency adjusting speed with brushless dc control, this system makes full use of characteristic of high static precision and dynamic fast response. in the synchronous model, based on the idea of symmetrical svpwm pattern generator using cpld device implementation
本文首先探討了同步電動機調速系統的控制理論，針對本轉速源的設計要求，作者提出了他控式變頻調速與自控式無刷直流調速相結合的調速方案。 -
Ann is trained through fast bp algorithm with variable learning rate that mixed with momentum factor and levenberg - marquardt algorithm. these algorithms can improve network ' s convergence speed
演算法上採用含有動量因子的自適應調整學習率的變學習率演算法或levenberg一marquardi優化方法對網路進行訓練，以提高網路的收斂速度。 -
Computer simulation of variable step - size fast adaptive algorithm for suppressing narrowband interference in ds - ss system
分散式演算法在測井曲線處理系統中的應用 -
Research of maximum power extraction algorithm for inverter - based variable speed wind turbine system is going on in the last chapter. main maximum power extraction algorithm is discussed and compared. a new mppt control algoririthm is discussed to get fast and stable traking of maximum wind power in detail, then advanced hill - climb searching method has been developed for maximum wind power traction
因此本文最後對一些最大風能俘獲的先進演算法進行了研究，仔細探討了最大功率點跟蹤演算法，並提出了一種先進爬山搜索風力發電最大功率俘獲智能演算法，採用該演算法不需測量風速和風機轉子速度，並且與系統特徵參數獨立，能應用於大小各種風機，具有非常好的效果。 -
The inverted pendulum is a kind of typically nonlinear, multi - variable, unstable, strong - coupling and fast system. control circle have paid more attention to its research for many years because it is influenced by nonlinear factors and difficult to control
倒立擺系統是一種典型的非線性、多變量、不穩定、強耦合的快速系統，由於它受多種非線性因素的影響，實現其控制較為困難，因此多年來對它的研究受到控制學界的普遍重視。 -
Hp : variable hp ( about 4500 for the head, 3000 for each body segment, and 2000 for the tail ) hp regen would be fairly fast ( 50hp / sec
血量：可變的血量（頭部大約4500血，身軀部分每段大約3000血，尾部2000血）回復速度非常快（每秒50點？ ）
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