loop feedback system 中文意思是什麼
loop feedback system
解釋
閉環反饋系統-
Based on a duralumin flexible beam with piezoelectric films attached, distributed parameter modal described by partial difference equations is builded, and then turned into a set of two order systems with the method of modal analyse. state feedback control and independent modal control is investigated. and simulation of the closed - loop system with thest two methods is performed in matlab
並用模態分析的方法，將系統的偏微分方程模型轉化成了模態模型；研究了狀態反饋和獨立模態方法；進一步完善了軟體界面以及軟體功能；在實際系統中，應用狀態反饋演算法，有效抑制了懸臂梁在受到外界瞬時脈沖擾動和激振引起的一階、二階模態振動。 -
It is generally impossible to obtain the analytic optimal guidance law for complex nonlinear guidance systems of homing missiles, and the open loop optimal guidance law is often obtained by numerical methods, which can not be used directly in practice. the neural networks are trained off - line using the optimal trajectory of the missile produced by the numerical open loop optimal guidance law, and then, the converged neural networks are used on - line as the feedback optimal guidance law in real - time. the research shows that different selections of the neural networks inputs, such as the system state variables or the rate of los ( line of sight ), may have great effect on the performances of the guidance systems for homing missiles. the robustness for several guidance laws is investigated by simulations, and the modular neural networks architectures are used to increase the approximating and generalizing abilities in the large state space. some useful conclusions are obtained by simulation results
對于復雜的非線性導彈制導系統，很難求得其解析的最優制導律，只能求得開環的數字解，不能適用於具有時變不確定性的導彈制導系統.利用神經網路的學習和推廣能力，對開環的數字最優制導律進行離線的學習，作為閉環的神經最優制導律在線應用.研究分別選擇系統狀態變量和視線角速率等不同的神經網路輸入對制導系統性能的影響，以及各種制導律的魯棒性問題，並採用模塊化神經網路結構提高神經網路的學習和推廣能力，模擬結果得到一些有益的結論 -
On the basis of methods of feedback linearization and compound lyapunov, the author puts forward a sort of robust output track control rule with a regulable parameter. this rule not only guarantees the system exponent output track but also makes the closed loop system have limited states
基於反饋線性化方法和復合lyapunov方法，作者提出了一種具有可調參數的魯棒輸出跟蹤控制律，不僅可以保證系統指數輸出跟蹤，而且閉環系統狀態有界。 -
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。 -
Adopting current feedback suspension control algorithm, the stable region of control parameters are narrow, overshoot is great and unable to make the closed - loop system bandwidth narrow
目前採用的基於電流反饋的懸浮控制演算法，參數穩定范圍小、超調量大，且無法將閉環系統帶寬設計得較低。 -
Presents the system established by taking variable - speed torque converter with adjustable guide blades as a pilot control unit and forming an open or closed loop feedback control system, and its outstanding advantages, such as high capacity, simplicity, reliability and good transmission efficiency owned by hydrodynamic drive, and the dynamic model developed for variable - speed torque converter with adjustable guide blades by means of theoretical analysis and regression analysis of experimental data, and concluds that the model is sophisticated and simple enough to be used as a tool for design, analysis and computer simulation of a hydrodynamic control system
以導葉可調式液力變矩器作為控制單元組成的開環或閉環液力控制系統，具有液力傳動裝置能容大、系統簡單可靠、傳動效率較高等顯著的優點.通過理論分析和試驗數據的回歸分析方法建立了導葉可調式液力變矩器的數學模型，模型既簡單，又有足夠的工程應用精度，為液力控制系統的設計、動態分析和性能預測提供了必要的理論基礎 -
The other way, theoretical analysis of weld tracking system with a leading sensor is stated, based on the analyzing of movement process of the tracking system, a loop control structure diagram is presented, the deuce vision feedback system is used and realized the repeated and automatic tracking in multiplayer seam and controlling of system of tracking and system of motion
同時就傳感器超前檢測式焊縫自動跟蹤系統進行了深入的理論分析，在分析該系統跟蹤過程運動關系的基礎上，建立了系統的閉環控制關系圖，並提出了其系統數學離散控制結構簡化圖。採用兩點式視覺伺服反饋系統，實現機器人在多層多道焊接時的重復自動跟蹤以及跟蹤機構的控制和焊炬橫向調節機構的控制，並使之協調聯動，滿足焊接過程的要求。 -
To realize the large stroke microfeed in this feed system, the microfeed system of closed - loop feedback control was adopted. the system is controlled by the 89c5 1 singlechip computer and combinely driven by the stepmotor and piezoelectric ceramic, the worktable ? position is measured by the raster position sensor
為滿足進給系統能實現大行程的微量進給的要求，系統採用了由89c51單片機控制，由步進電機和壓電陶瓷復合驅動，並通過光柵位移傳感器進行位移檢測，從而形成閉環反饋控制的微量進給方式。 -
After analyzing compensation conditions for 3 - axis stabilization to overcome disturbance from ship surge, sway and yaw, two control strategies - feed - forward compensation and closed - loop feedback compensation - are given. these two strategies are applied to antenna stabilized tracking system with good performance. intelligent pid is used in closed - loop feedback compensation to get high tracking precision and rapid response
重點分析了天線穩定控制系統的三軸補償條件，提出了穩定系統抑止載體擾動的控制策略：對于橫滾和俯仰系統採用前饋補償的控制策略；對于方位系統，在以步進電機為驅動元件的特定條件下，研究了變控制周期的閉環反饋策略，同時成功將智能pid演算法應用於實際系統，提高了系統的跟蹤精度和響應快速性。 -
The algorithm of strapdown inertial navigation system is also discussed and then use the flight - track generator to give a simulation, since a closed loop feedback integrated navigation system is designed in this paper, and the output of the filter must feed back to the strapdown inertial navigation system, the analysis of the algorithm in strapdown inertial navigation system is important. the scheme to design the trajectory of gps and the simulation of gps constellation are then studied, the simulation of gps constellation is given from the calculation of vernal equinox base on the principle of celestial mechanics, this method of different from other methods given by other paper and is useful to the research of satellite navigation system. a new method to abstract noise modal in integrated navigation system is proved to be useful in practice, this method, which is given by use the principles of stochastic processes, statistics, time series analysis, and system identification, is suitable for the kalman filter in integrated navigation system
如航跡產生器的設計，該航跡產生器是研究組合導航問題的前提，從國外一些研究組合導航系統的文獻中可以看出，設計這樣一個航跡產生器是非常必要的，所以本文自行設計了這樣一個系統；還討論了捷聯慣性導航系統中捷聯解算的方法，並進行了模擬研究，由於在本文設計的閉環反饋式組合導航系統中，對捷聯慣導系統的平臺誤差進行閉環控制，需要將濾波器輸出的校正量反饋到捷聯解算內部，所以必須對捷聯解算進行深入的研究和分析，更何況捷聯解算問題本身也是導航界的一個熱門研究課題；另外，本文還介紹了gps軌道及其星座模擬的設計思想和方案，與以往gps軌道和星座模擬不同的是本文從天體力學中計算春分點開始，逐步進行gps軌道及其星座模擬，這樣的設計方法對從事衛星導航的研究工作是有價值的；還對組合導航中誤差建模方法進行了研究，綜合運用隨機過程、概率統計、時序分析及系統辯識等方面的理論提出了一套適合組合導航卡爾曼濾波的誤差建模方法，並運用實際研究工作中的測量數據對該方法進行了驗證。 -
While in a high performance speed closed - loop control system, the speed signal is essential for the feedback
然而在一個高性能的速度閉環控制系統中，速度反饋信號又是必須的。 -
First of all, based on the administration function chart of cangzhou area, a simple closed loop control system model was abstracted, and through theory analysis of the model ' s input signal, controlled object, feedback facility, controller and system disturbance, the difference between this model and common model was showed and the characters of cangzhou area ' s sustainable development system were discussed
以滄州區域行政運行圖為背景，抽象出一種簡單的閉環控制系統模型，並對該模型的輸入信號、被控對象、反饋裝置、控制器和系統干擾等特徵進行理論分析，說明該控制模型與普通控制模型的區別，以及滄州區域可持續發展系統的特點。 -
The stochastic structure and stochastic intelligent truss structure are taken as research object in this paper. the analytical model and method of the structural dynamic characteristic are investigated. when the applied forces are random excitation or random process ( stationary random process or non - stationary random process ) excitation, the structural dynamic response, the active vibration control for the intelligent structure, the optimal placement of the sensor and the actuator and the optimization of the feedback gains of the closed loop control system for the intelligent structure, and the effects of the structural parameters on the active vibration control et al are all studied systemically
本文以隨機結構和隨機智能桁架結構為對象，對結構動力特性分析模型與求解方法進行了研究；對結構在隨機力或隨機過程（平穩隨機過程或非平穩隨機過程）激勵下，結構的動力響應、結構的振動主動控制、智能結構中作動和傳感元件配置位置與閉環控制系統增益優化、結構參數對振動主動控制效果的影響等問題開展了全面而系統的研究。 -
This can be reduced by borrowing close loop feedback which cost great and make the system more complex. with charge driver the pizeo acuter works under ideal linear. but charge driver is lack of low frequency stability
而採用電壓驅動方法控制壓電陶瓷，開環時存在遲滯、蠕變和位移非線性;採用電荷驅動方法，開環控制線性良好，但低頻穩定性差。 -
6. a closed loop feedback cascade ins / gps / sar integrated navigation system is designed and give simulation. the ins / gps integrated subsystem is studied in deep, then discuss the application of the multi - sensor data fuse in ins / gps / sar integrated navigation system
（六）對工ns / gps / sar組合導航系統的整體方案進行模擬研究，設計了一種級聯閉環反饋組合導航系統並對其方案和演算法進行了深入的研究。 -
Now design efficiency of common gas boiler can reach 90 percent or so, but various factors such as load, fuel quality, work condition and pressure which result in uncompleted burning of gas and excess air, decrease boiler hot efficiency and cause resources waste and environment pollution. considering these it is essential to adopt closed loop feedback control to boiler burning system
現今，一般的燃氣鍋爐設計效率均能達到90 %左右，但在實際運行中，因負荷、燃料品質、工作環境、壓力、混合情況等因素的影響，往往造成燃氣不完全燃燒或空氣過量，使鍋爐熱效率降低，造成能源浪費與環境污染，在這樣一種背景下，有必要對其燃燒系統進行閉環反饋控制。 -
For better performance in the circumstance of different hand - drawn shape input, an adaptive hmm ( ahmm ) structure is presented which combines single - band integral algorithm and an adaptive compression ratio control technique into one closed loop feedback recognition system, the ahmm can adaptively compress feature vectors according to geometry feature of input graphics, also can it adaptively adjust the feature compression ratio by feedback, this recognition structure achieve good performance in recognition
為了使識別系統能夠更好的適應輸入圖形的變化，本文提出了一種ahmm識別結構，利用基於單邊積分的特徵壓縮演算法和自適應壓縮率調整技術構造了一種閉環反饋識別系統，既能夠根據圖形的幾何特徵自適應的壓縮特徵向量，又能夠通過閉環反饋調整特徵向量壓縮率，達到了很好的識別效果。 -
Multi - loop feedback control was employed for underactuated flight control system of unmanned helicopter
摘要針對無人直升機欠驅動特性，採用多迴路反饋方法設計飛行控制系統。 -
Such structure can be described with strict feedback system. motivated by vehicle cruise control, this paper investigates nonlinear robust control of strict feedback system and presents a lyapunov - based design method : dynamic surface control and proves the exponent stability and arbitrary small bounded tracking error of the closed loop system
本文在汽車巡航控制應用背景下，討論了嚴格反饋非線性系統的魯棒控制問題，給出構造性的非線性控制器設計方法： dsc （ dynamicalsurfacecontrol ）魯棒控制器，並對閉環系統穩定性進行了分析，證明了調節問題的指數穩定性和任意有界誤差跟蹤性能。 -
Furthermore, a fault accommodation method for a class of nonlinear system, which can be changed into output - feedback form, is proposed using a neural - network - based adaptive observer. the system faults can be detected through the residual generated by the proposed observer. the stability of closed - loop error system is guaranteed by lyapunov stability theory
針對該類系統，利用神經網路的一致逼近任意非線性連續函數的性質，構造神經網路自適應觀測器來獲取反映故障信息的殘差，採用lyapunov穩定性理論證明了誤差系統的穩定性。
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