systems open-loop 中文意思是什麼
systems open-loop
解釋
開迴路系統-
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 -
It is readily acknowledged that open-loop systems can also be used satisfactorily in many cases.
我們仍然承認在許多時候使用開路系統仍有其獨到之處。 -
The mathematic models of networked control systems with single packet transmission, multiple packet transmission or data packet dropout are developed when the network - induced delay is short time delay. the open - loop mathematic models of networked control systems with long time delay are developed when the system is driven by anyone of the four different modes. the uniformed modeling method for networked control systems with long time delay is proposed
建立了短時延網路控制系統在單包傳輸、多包傳輸以及有數據包丟失時的數學模型；建立了長時延網路控制系統在四種驅動方式下的開環數學模型，提出了長時延網路控制系統的統一建模方法；建立了多輸入、多輸出ncs的數學模型。 -
The gpd3402 inverter and plc being selected to set up open - loop and closed - loop speed regulation systems, applying the invariable v / f control, sensorless vector control, slip compensation, process pi and network control technologies control the hoist motor of the stacker crane
本文基於gpd3402變頻器的變頻調速方式進行應用開發，對堆跺機提升電機採用變頻調速控制，採用gpd3402變頻器及plc ，組建開環調速系統，分別應用恆壓頻比、無速度傳感器、矢量控制、轉差補償控制技術。 -
Uniaxial motion, fixed - axis rotation ; first and second order systems ; natural and forced response ; transfer functions, zeroes, poles ; elementary control : open - loop, closed - loop ; closing the loop alters the natural and forced response characteristics ; stability and instability
003單軸運動，固定軸的轉動，一階與二階系統，自然與強迫響應；轉移函數，零點，極點；基本控制：開迴路，閉迴路；回授對自然與強迫響應特性之改變；穩定與不穩定。 -
In the part of the experimental designs, a experimental configuration of an unstable cavity by use of two bbo crystals compensating the walkoff effect and pumped by reflection is presented, and two set of controlling systems designs of open and closed loop are also presented ; we realized closed loop controlling system of bbo optical parametric oscillator tuning system, by using american general scanning inc. ' s controller to control bbo crystal ' s rotation, and scaled the output wavelength with charge coupled device
在實驗設計上給出了利用兩塊bbo晶體補償走離效應返回式泵浦非穩腔的實驗設計，設計了開環和閉環兩套控制系統。通過使用美國通用掃描公司的掃描頭控制bbo晶體的轉動，用ccd對bbo - opo輸出波長進行標定，實現了bbo - opo調諧系統的閉環控制，相對波長調諧誤差小於0 . 04 ，並給出了354 . 7nm泵浦的類相位匹配bbo - opo輸出波長隨晶體轉角變化的理論和實驗曲線。 -
For the feedback controller design, under the condition of that the noise and disturbance had been eliminated through disturbance observer, an anti - windup state feedback controller is proposed to solve the problem in which most of the existing anti - windup schemes can not guarantee the asymptotic closed - loop stability even for open - loop stable systems subjected to actuator saturation
對于反饋控制器設計，考慮了系統的物理約束即驅動飽和的影響，在系統的量測噪聲和外部擾動已經通過擾動觀測器減弱的條件下，提出了一種抗漂移的狀態反饋控制器設計方法。模擬結果表明所提方法的有效性。 -
( 6 ) this dissertation makes a detailed study of the nn based adaptive control of nonlinear dynamic systems. two types of drnn controllers are designed using the experimental samples, which are named the open - loop controller and the close - loop controller respectively. the experimental mechanism is controlled on - line by means of the nn based direct self - tuning control strategy and the nn based indirect adaptive control strategy
6 .本文對基於神經網路的非線性動態系統自適應控制方法進行了深入研究，利用實驗輸入輸出數據離線設計了動態遞歸神經網路開環、閉環控制器，並分別採用基於神經網路的直接自校正控制方法與基於神經網路的間接自適應控制方法對彈性連桿機構實施了在線控制。 -
Abstract : iterative learning control is an effective approach to the control of processes that are repetitive in nature. in this paper, an open - closed - loop pi - type iterative learning control scheme for the precise tracking control of a class of discrete nonlinear time - varying systems over a finite time interval is presented. the scheme updates control input with tracking errors of both current and last iterations simultaneously. sufficient and necessary conditions which guarantee the convergence of the scheme are given and then proved with inductive method. finally, the conditions are verified with simulation results
文摘:對于具有重復運動性質的對象，迭代學習控制是一種有效的控制方法.針對一類離散非線性時變系統在有限時域上的精確軌跡跟蹤問題，提出了一種開閉環pi型迭代學習控制律.這種迭代律同時利用系統當前的跟蹤誤差和前次迭代控制的跟蹤誤差修正控製作用.給出了所提出的學習控制律收斂的充分必要條件，並採用歸納法進行了證明.最後用模擬結果對收斂條件進行了驗證 -
The open - loop system is normally used in simple point - to - point, or positioning systems, although improvements in technology have made it possible to install the system in contouring systems as well
雖然技術的進步已使等值線系統安裝在系統中成為可能，但開環系統通常只在簡單的點對點或配置系統中應用。 -
In section 2. 6, we show the open - loop system ( 1. 1 ) - ( 1. 3 ) is exactly observable. this provides us with an effective method to study the stability of non - dissipitiwe flexible beam systems with boundary feedback
縱觀第二節到第五節，它為我們今後研究非耗散邊界反饋彈性梁振動系統的穩定性提供了一個非常有效的方法。 -
The method of controlling the a / f combines the open and closed loop systems and gradually improves the accuracy of the lpg injection duty ratio by rough regulation, smooth regulation and micro - regulation
本文採用開閉環互相結合，粗、細、微調逐步精確噴氣占空比的控制方式研製了lpg發動機空燃比控制器。 -
The energy consumption analysis and experiment of the two systems, which are pump - control - motor speed governing system with inverter and hydraulic speed governing system with inlet throttle, are given. software direct compensating motor speed loss of open loop pump - control - motor speed governing system with inverter is studied deeply in theory and experiment. the applications of fuzzy control, single neuron control and genetic algorithm in pump - control - motor speed governing system with inverter are studied, and some useful conclusions are obtained
所進行的主要研究工作如下：對主要參數對變頻泵控馬達調速系統的性能影響進行了時域模擬分析和開環階躍響應實驗研究；對變頻泵控馬達調速系統和進口節流閥控馬達調速系統進行了能耗分析和對比實驗研究；對軟體直接補償開環變頻泵控馬達調速系統的馬達轉速降落進行了理論分析和實驗研究；對變頻泵控馬達調速系統進行了復合補償控制實驗研究；研究了模糊控制、單神經元控制和遺傳演算法在變頻泵控馬達調速系統中的應用，均得到了有益的結論。 -
Some resultants of two simulations for open loop and close loop conditions are given in this dissertation. all those works provided considerable significance and concrete helps for designing the circuit hardware of the system. a mathematical model for small signal analysis of the inverter used in pv grid connected systems is established. and two simulations based on this model for open loop and close loop conditions are also given in this thesis by help of simulink tool of the matlab software
使用matlab中的powersystemblocksets工具軟體建立了單相光伏並網發電系統的動態模型，並進行了在開環和閉環兩種情況下的模擬，給具體的硬體設計提供了極為有效的幫助；建立了光伏並網發電系統逆變輸出環節的小信號模型，並使用matlab中的simulink工具進行了開環和閉環狀態下的模擬。
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