feedback technique 中文意思是什麼

feedback technique 解釋
反饋技術
  • feedback : 反饋的信息
  • technique : n. 1. （專門）技術；（藝術上的）技巧，技能。2. 手法〈如畫法，演奏法等〉。3. 方法。
  1. In the hardware design, the paper completes modules ’ design like outside memory, patulous a / d, patulous d / a, rs232 communication, ecan communication, led control, keyboard control, distant control, emulation, reset, logic voltage switch, dsp supply power regulate and ac - dc power circuit, as well as room layout design like anterior panel, back panel etc. and dsp transfers data with peripheral equipments except outside memory using serial ports. besides, the whole circuit is configured in interrupt response. thus, it can meet system demand as well as take full advantage of tms320f2812 ’ s hardware resource. in the software design, the paper finishs programs like the interface programms intercommunicates with people, the distant control program, ad and da modules ’ control program, in addition, the paper select the velocity and acceleration state - feedback algorithm and is written in the program. the software design uses dsp integrate exploiting environment named ccs2. 2 of ti inc. as software instrument, and programs with the combination of c language and assembly language. moreover, in order to maintenance or modify the software expediently and shorten software ’ s exploitation time, the design adopt software modularization technique. finally, some air cylinder experiments are carried out to proved that the pneumatic controller is very practical

    在硬體設計中，本文完成了片外存儲器擴展、 a / d擴展、 d / a擴展、 rs232通信介面、 ecan通信總線介面、液晶顯示控制、鍵盤控制、遠程控制、模擬、復位、邏輯電平轉換、 dsp工作電源校正電路和ac - dc電源等模塊設計以及控制器前面板、後面板等的空間布局設計。其中dsp與除外部存儲器的外圍設備之間的數據傳送全部採用串口通信，同時系統電路配置成中斷響應方式，這樣既滿足了系統要求，又充分利用了tms320f2812的硬體資源。在軟體設計中，本文完成了人機界面功能模塊、遠程控制模塊、 ad擴展模塊、 da擴展模塊、速度和加速度狀態反饋的控制演算法的程序設計。
  2. The actuarial control cycle emphasizes the importance of the actuarial control method in the risk management of the insurer, and develops the actuarial technique into the systemic management method or the decision - making support method. the actuarial control cycle can provide the insurer with a reasonable risk supervising and managing process through a continual feedback process

    精算內控系統強調了整體精算控制方法在保險公司風險管理中的重要性，將精算發展成為一整套系統的管理決策支持思想和方法，並通過一個連續的回饋過程使精算內控系統成為任何保險公司合理的風險監管過程的基礎。
  3. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  4. The conventional variable structure control technique for uncertain system requires that the uncertainty bound is known as a premise to assure robustness. the requirement creates an over - conservative controller and enlarges chattering. the proposed controller regards the influence of unknown disturbances and parameter uncertainties as an equivalent disturbance and generates an on - line estimation used in smc to cancel the slowly varying uncertainties by the mechanism of time delay. the reaching law approach is used to get the conditions and band of quasi - sliding mode. the new methodology offers a robust feedback control with much lower gains and reduces chattering without a prior knowledge of the uncertainty bounds or matched conditions

    常規變結構控制用於不確定系統，須利用不確定性界確保系統的魯棒性，控制器過于保守且抖振變大.本文把未知干擾和參數不確定性的影響等效為名義系統的外界干擾，利用時延技術對干擾進行在線估計，並將估計值引入到變結構控制中，從而抵消掉系統中的慢變不確定性，利用離散趨近律法，推出了準滑動模態的存在條件及其帶寬.該方法克服了以往控制方法中須已知不確定性界的限制，且不必滿足匹配條件，用較低的控制增益保證了系統的魯棒性，降低了準滑動模態帶即削弱了抖振
  5. Abstract : the conventional variable structure control technique for uncertain system requires that the uncertainty bound is known as a premise to assure robustness. the requirement creates an over - conservative controller and enlarges chattering. the proposed controller regards the influence of unknown disturbances and parameter uncertainties as an equivalent disturbance and generates an on - line estimation used in smc to cancel the slowly varying uncertainties by the mechanism of time delay. the reaching law approach is used to get the conditions and band of quasi - sliding mode. the new methodology offers a robust feedback control with much lower gains and reduces chattering without a prior knowledge of the uncertainty bounds or matched conditions

    文摘:常規變結構控制用於不確定系統，須利用不確定性界確保系統的魯棒性，控制器過于保守且抖振變大.本文把未知干擾和參數不確定性的影響等效為名義系統的外界干擾，利用時延技術對干擾進行在線估計，並將估計值引入到變結構控制中，從而抵消掉系統中的慢變不確定性，利用離散趨近律法，推出了準滑動模態的存在條件及其帶寬.該方法克服了以往控制方法中須已知不確定性界的限制，且不必滿足匹配條件，用較低的控制增益保證了系統的魯棒性，降低了準滑動模態帶即削弱了抖振
  6. Three layer architecture client / web / server of computer wide area network was adopted in this system, applying internet technique, using java language and informix database, the automation during the whole process of transmission circuit dispatching was realized, including application, approval, dispatching feedback, manual operation process was reduced, meantime convenient and rapid inquire method was provided, the work efficiency and data accuracy were increased

    本課題採用client web server計算機廣域網的三層體系結構，運用internert技術，使用java語言和informix數據庫，實現了對傳輸電路調度的過程中申請、批復、派發、反饋全過程的自動化，減少了人工操作的環節，同時提供了方便、快捷的查詢手段，提高了工作效率和數據的準確性。
  7. In the course of modeling, we present multi - step generalized gradient method and multi - stage curve fitting technique, prove convergence of multi - step generalized gradient method by using differential equation stable theory, analyze the error of multi - stage curve fitting technique by using inner space, creat knowledge base of water network system by using the maximum subordinate principle of and near - select principle of pattern recognition. at last we make the optimal running scheme of water network system based on heuristic search technique of artificial intelligence and global feedback immediate coordination method of large scale system theory

    在建立系統模型的過程中，提出了多步廣義梯度法和多層曲線擬合的建模方法，並用微分方程穩定性理論證明了多步廣度梯度法收斂性，用內積空間的有關知識對多層曲線擬合進行誤差分析;應用模糊數學中的最大隸屬度原則和模糊識別中的擇近原則和人工智慧中狀態空間表示法建立注水系統的知識庫;用人工智慧中的啟發式搜索技術和大系統理論中的具有全局反饋的直接協調法制定注水系統的優化運行方案。
  8. Then design and implement the cbir test platform. the platform using automation technique implements the general interfaces of adding function, relevant feedback, original image maintenance, storing result and so on. according to the standard of the general interface, researchers can add any retrieval algorithm to this platform and test the results

    該平臺應用自動化技術設計並實現了通用的功能添加、相關反饋、源圖象維護、結果保存等介面，實驗設計與分析人員只需按照介面的標準即可將圖象檢索演算法動態添加到試驗平臺中，測試結果。
  9. The new adrc technique was concluded from the related references in recent years, and the adrc theory was systemically introduced, which included tracking - differentiator ( td ), extended state observer ( eso ), nonlinear pid, nonlinear feedback ( nf ) and active disturbance rejection controller ( adrc ), and etc. the author first designs a pd attitude control system, indicating : using pd attitude control, the time of small satellite gesture capture is long and the precision of control is low

    從近幾年有關文獻中總結了自抗擾控制新技術，系統介紹了自抗擾控制理論，其中包括跟蹤微分器（ td ） 、擴張狀態觀測器（ eso ） 、非線性pid 、非線性反饋（ nf ）和自抗擾控制器（ adrc ）等。設計了主動磁控小衛星pd姿態控制系統。指出採用pd姿態控制，微小衛星姿態捕獲時間較長，姿態控制精度較低。
  10. Taking cgle for example, we first introduce spatial grid filter technique to control the system turbulence states and obtain multiform regular spatial distributions, both with the time evolution keeping to be chaos or changing to be period. and we also control stc in cgle by using delay feedback method

    以復金茲伯格?朗道方程為例，首次提出網格濾波方法，討論濾波技術對這一系統時空混沌的控制，對規則濾波無法得到滿意控制的復金茲伯格?朗道方程中的缺陷湍流和位相湍流有效地進行了控制，得到了豐富的時空斑圖結構。
  11. On the other hand, as to the time domain methods, based on lyapunov - krasovskii function method, riccati equation method, linear matrix inequality technique, along with the skills of equality and inequality transformations, the robust stabilization and robust h control problems are studied via state feedback for some kinds of uncertain time - delay systems, and delay - independent as well as delay - dependent results are obtained

    時域方法方面基於lyapunov - krasovskii泛函方法、 riccati方程方法、線性矩陣不等式（ lmi ）技術，以及代數等式、不等式變換技巧等主要處理手段，通過狀態反饋分別研究了不確定時滯系統的魯棒鎮定及魯棒h控制問題，得到了時滯無關和時滯依賴兩種不同結果。
  12. The paper involved srm s maths model, velocity - control theory and feedback - signal - check technique. according to srd s main technical demand, srm s raw data and srm s control theory, the main system was divided into several modules. based on the modules, by selecting proper components and calculating right parameters, in parallel with the sample machine s experiments, the cotroller s design was completed and the system completely meet the demands

    根據開關磁阻電動機驅動系統的主要技術要求和開關磁阻電動機的原始數據以及控制理論，將2 . 2kwsr電動機控制器系統的設計劃分為幾大功能模塊，進而通過系統元器件的選型和參數計算，結合樣機試驗，完成了對2 . 2kwsr電動機控制器系統的設計，並達到功能要求。
  13. The proposed control system includes the attitude controller acting on the rigid hub, designed by using pulse - width pulse - frequency ( pwpf ) modulation integrated with command shaping technique based on csvs method, and the piezoelectric material elements as sensors / actuators bonded on the surface of the beam appendages, designed by the optimal positive position feedback ( oppf ) control technique, in which the selection of ppf gains is determined via introducing a cost function to be minimized by feedback gains which are subject to the stability criterion at the

    設計的控制器僅利用輸出信息，從而避免設計撓性模態狀態觀測器以及引入狀態觀測器誤差;在此基礎上，採用分力合成方法設計命令成形控制器來抑制撓性附件的振動，設計的優化命令成形控制信號在理論上可以對系統的各階撓性模態完全抑制。但考慮到模型不確定性和外部擾動，在內迴路又設計了最優正位置反饋（ oppf ）補償器以增加撓性結構的阻尼，使撓性結構的振動能夠很快衰減。
  14. The research content of the thesis is the speech enhancement technique that is used in the acoustic feedback suppresser. firstly, we searched and compared the methods of noise estimation based on vad and updating the noise spectrum continuously, combined them together to make some improvement. secondly, we research on some speech enhance techniques including short time spectrum analysis speech enhance technique and its improvement form, simulated the algorithms and compared them each other

    本論文研究語音增強技術在聲反饋抑制器中的應用，論文的主要工作包括: 1 .對基於vad （ voiceactivitydetection ）的噪聲估計方法和連續更新噪聲譜的方法進行研究和比較，針對模擬結果分析兩種噪聲估計的性能，並將兩者結合起來，做出改進，用於實際的語音增強系統中。
  15. State feedback pole assignment technique is used to gain fast tracking of the output voltage, and a repetitive control is designed to reduce voltage distortion under nonlinear loads

    系統利用狀態反饋極點配置獲得了電壓跟蹤控制的快速性，利用重復控制較好地抑制了非線性負載工況下的電壓畸變。
  16. Nonlinear dynamic modelling of sensors is an important aspect in the field of instrument technique. the recursive neural network is proposed for nonlinear dynamic modelling of sensors, as its architecture is determined only by the number of nodes in the input, hidden and output layers. with the feedback behavior, the recursive neural network can catch up with the dynamic response of the system. the recursive neural network which involves dynamic elements and feedback connections has important capabilities that are not found in feedforward networks, such as the ability to store information for later use and higher predicting precision. a recursive prediction error algorithm which converges fast is applied to training the recursive neural network. experimental results show that the performance of the recursive neural network model conforms to the sensor to be modeled, and the method is not only effective but of high precision

    根據動態校準實驗結果建立傳感器的動態數學模型，以研究傳感器的動態性能，是動態測試的一個重要內容.討論了遞歸神經網路模型在傳感器動態建模中的應用，給出了遞歸神經網路模型的結構及相應的訓練演算法.由於其反饋特徵，使得遞歸神經網路模型能獲取系統的動態響應.該方法特別適用於傳感器非線性動態建模，而且避免了傳感器模型階次的選擇的困難.試驗結果表明，應用遞歸神經網路對傳感器進行動態建模是一種行之有效的方法
  17. A local nonlinear feedback loop ( lnfl ) technique and a sigma - delta modulator ( sdm ) for promoting highly stable oversampling using the lnfl technique

    一種局部非線性回授?路法，以及並利用此一局部非線性回授?路法改良之高穩定性超取樣積分三角調變器。
  18. First, analyze the existing techniques about cbir, including indexing methods, similarity calculation and relevant feedback technique

    首先，分析了基於內容的圖象檢索的現有技術，包括索引方法、相似度計算、相關反饋等技術。
  19. In this paper, a lot research work has been done around three points : how to abstract and index low - level feature of images, how to retrieval images in semantic level, and how to fill the semantic gap by relevant feedback technique

    前者研究的是根據自動獲取的圖像低層特徵，從圖像數據庫中檢索出相關圖像；而後者研究的是如何從多種渠道獲取圖像語義信息，並根據語義檢索相關圖像。
  20. At this part, it firstly comes up with a quasi - static frequency selective fading channel model. based on this channel model, considering about the characteristics of the model and the lattice reduction complexity, we proposed a new detection strategy, which is the lll detection algorithm combined with decision - feedback technique

    首先提出了準靜態頻率選擇性多徑通道模型，然後基於該模型提出了一種新的用於準靜態頻率選擇性通道的檢測方案，即與判決反饋相結合的格約簡輔助檢測方案。
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