rate feedback system 中文意思是什麼
rate feedback system
解釋
速度反饋系統-
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 -
Renin secretion is controlled by at least four mechanisms that are not mutually exclusive : a renal vascular receptor responds to changes in tension in the afferent arteriolar wall ; a macula densa receptor detects changes in the delivery rate or concentration of nacl in the distal tubule ; circulating angiotensin has a negative feedback effect on renin secretion ; and the sympathetic nervous system stimulates renin secretion via the renal nerve mediated by receptors
腎素的分泌至少受四種互不排斥的機制控制：腎血管受體對向心小動脈壁張力變化的反應；緻密斑受體發現遠端腎小管內氯化鈉傳遞速率或濃度的變化；循環的血管緊張素對腎素的分泌的負反饋效應；和交感神經系統經由受體介導的腎神經刺激分泌腎素。 -
In this system, the closed loop is composed of velocity measurement machine used as velocity feedback and coder used as position feedback, the feed - forward signal of ship swaying is measured by rate gyro
該系統用測速機構成閉環，作速度反饋，編碼器作位置反饋，速率陀螺測量並前饋艦船搖速度信號。 -
Due to two work states - - - arc burning and short current - - - existed in welding process of consumable electrode welding, and different control objectives in these two states, two close - loop feedbacks are designed in the control system : welding voltage feedback and welding current change rate feedback
根據熔化極co2焊機具有燃弧和短路兩種工作狀態，且兩種狀態下控制目標不同的特點，在控制系統中設計了雙閉環反饋：焊接電壓反饋及焊接電流變化率di / dt反饋。 -
Chapter 3 gives an introduction to the flow rate dividing principle based on meter - in flow rate feedback control of multi - actuators control system. special analysis about simultaneously operating multi - actuators with different inertia loads is made. finally the results of simulation proved that the new method is an effective way to improve the flow - used ratio when the pump discharge flow rate is insufficient
第三章介紹了基於執行器進油側流量反饋的分流控制的原理，並針對大小慣性執行器同時起動時採用該分流控制方法進行了具體分析；最後通過模擬說明該分流控制方法能在大小慣性執行器同時起動並在泵輸出流量不足的情況下有效提高泵輸出流量的利用率，並能實現優先級和分流比混合控制。 -
The streamline of the product design includes " target design ", " structure design ", " price fixing of the product ", " the feature analysis of risk profit and " product standardization ". the evaluation methods of the automobile finance product are the ones of discount of profit rate and of information feedback. the development and innovation is the interior demand of the reform of china ' s finance system
分析了汽車金融服務公司的一般演變歷史過程和當前幾種主要存在形式，包括「大汽車製造企業附屬型」 、 「大銀行財團附屬型」 、 「獨立型」 ;分析了汽車金融服務公司新的「復合優勢」 ;還分析了「經濟全球化」過程中汽車金融服務開始出現的「多元戰略」 、 「深化戰略」和「虛擬服務」發展趨勢。 -
The main contributions of this dissertation are summarized as follow : ( 1 ) an ilc approach combining feedforward with current feedback is developed based on optimal feedback control and the gradient method. a sufficient condition that guarantees the convergences is given for linear system. the procedures of designing the algorithm can employ lqr, h2 or h approaches to improve the convergence rate of learning in iterations
本文的主要成果有： 1 、在開閉環綜合迭代學習控制結構的基礎上，分析了利用梯度下降法設計前饋迭代學習控制器時，為保證演算法的收斂性，閉環控制系統應該滿足的充分條件，並依據提高演算法收斂速率的優化條件，給出了基於lqr 、 h _ 2和h等優化控制技術的迭代學習控制演算法的設計方法。 -
A sufficient condition for the existence of a solution to robust decentralized dissipative control via state feedback and via output feedback is derived in term of a set of hamilton - jacobi - issacs ( hji ) inequalities. the sufficient condition is that the robust decentralized dissipative control problem can be resovled for all admissible uncertainties, if there exists a scaling c1 storage function such that hji inequalities have nonnegative solution. the controllers constructed make the nonlinear system robust dissipative with respect to the quadratic supply rate
基於hji不等式給出了含有不確定和干擾非線性互聯系統魯棒分散耗散控制存在的充分條件，即對于所有允許的不確定如果存在標量c ~ 1類存儲函數使得hji不等式有非負定解，那麼非線性互聯系統魯棒分散耗散控制就可獲得，並且構造的控制器使得非線性互聯系統在給定二次型供給率下具有魯棒耗散性。 -
It compares and analyzes many real time transportation methods of mpeg - 4 video bits, and selects the adaptive rate control algorithm for this system ; it also discusses rtp / rtcp protocol and rtp payload format for mpeg - 4 visual streams, feedback control algorithm and error control methods ; it has comprehensive research about the quadratic r - d model algorithm and improves it. finally, these technologies are applied in smart home system, using xvid, jrtp open source software, video4linux and directshow technologies
分析和比較mpeg - 4碼流在internet上的幾種實時傳輸方案，選擇了自適應編碼方案作為本系統的傳輸方案；對rtp rtcp協議、 mpeg - 4碼流在rtp中的包結構、端到端的反饋控制演算法和差錯控制的解決方案以及基於二級r - d速率控制演算法進行了深入的研究，並對二級r - d速率控制演算法進行了改進。 -
To order to solve above problems, we design a novel rate - based multicast congestion control scheme - rbmcc, which uses the active explicit congestion indication and representative - based feedback control scheme to inform the source of the status of the network, and alternate the send rate by adjusting the packet intervals between packets. the goal of the dynamic congestion control algorithm is to make the entire system responsive to the changes as rapidly as possible in the offered loads or available bandwidth without getting into an oscillating behavior
針對上述演算法中存在的動態性、靈敏性以及由之引起的公平性等問題，本文第3章設計了一種新的基於速率的組播擁塞控制機制? ? rbmcc ，該演算法利用積極的顯式擁塞指示，基於代表的反饋機制，通過調節包與包的發送間隔來改變數據的發送速率，動態地自適應網路擁塞狀態的改變。
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