time-varying parameters 中文意思是什麼
time-varying parameters
解釋
時變參數- time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
- varying : 變化的
- parameters : 編輯特徵參數
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Regarding the hysteretic properties and time - varying of the system, the scan round performance of the controller, adopt incremental pid algorithm in constant - pressure controlling and combine it with the integral - separated dead - zone algorithm as appropriate for the situation of the measuring system and applies fuzzy self - tuning to control pid controller parameters
由於系統的滯后時變性和控制器的循環掃描工作方式，恆壓控制採用增量式pid控制演算法，結合測量系統實際情況加入積分分離帶死區改進演算法，並對pid參數進行模糊自整定控制，設計了一種參數自整定模糊pid控制器。 -
Identification of time - varying modal parameters by a linear time - frequency method
應用時頻分析方法辨識時變系統的模態參數 -
Then, as the substitute of the traditional pi controller, neuron adaptive psd controller is used to alternate the velocity loop of dc driver system, simulation results show that the super - shoot in new system is small and the performance in the way of anti - disturbance and anti - time - varying parameters are higher than the traditional pi controller and robustness of the dc driver system improved greatly, in addition, through analysis of the character of the neuron adaptive psd controller, the paper presents a neural network self - tuning control method for dc driver system in which the diagonal recurrent neural network is used to identify the plant to calculate the plant ' s sensitivity for psd controllers simulation results indicate that excellent static dynamic target was got with this control method and the performance of the system is improved greatly,
然後，應用單神經元自適應psd控制器改造調速系統的轉速環，代替傳統pi調節方式的轉速控制器。模擬表明，新系統在超調、抗負載擾動和參數時變方面性能優于的傳統的pi控制方式，系統的魯棒性增強。在分析單神經元自適應psd控制器特性后，本文提出用對角遞歸神經網路辯識控制對象，為psd控制器提供靈敏度參數，從而構成一神經網路自校正控制方案。 -
There are many plants that have the character of time - varying, large delay, large inertia in the process of production of modern power station such as the superheated steam temperature, the reheated steam temperature, the water treatment of boiler and the load regulation. some of them have the strong character of nonlinear and some of them are multivariable coupling systems it is very difficult to obtain good effect of control by conventional pid control. it is necessary to set up the mathematics models of controlled plants if applying control means of modern control theory such as self - adaptive control, optimal control ， decoupling control and predictive control. and these control systems have large calculation and bad character of real time in general. these disadvantages make them be not able to meet the need of real production process and limit the application of them in modern power station. now the generator units are developing towards large capacity and high parameters. many new kinds of generating electricity means are coming into being. the characers of production units of power station become more and more complex but the demand to quality of control becomes more and more strict. the new control means are in bad need to control them effectively
現代電站的生產過程中存在過熱汽溫、再熱汽溫、鍋爐水處理、負荷調節等許多大遲延、大滯后、特性時變的對象，它們中有些還是具有強非線性特性的對象或多變量耦合系統，採用常規的pid控制手段很難取得良好的控制效果。若應用現代控制理論中的自適應控制、最優控制、解耦控制、預測控制等控制手段，則需要建立被控對象的數學模型，而且往往控制系統的計算量大、實時性差。這些缺點使其很難滿足實際生產過程的需要從而極大地限制了其在現代電站中的應用。 -
Convergence of forgetting gradient estimation algorithm for time - varying parameters
時變參數遺忘梯度估計演算法的收斂性 -
Pricing for european lookback options with time varying parameters and stochastic life
基於時變參數且具有隨機壽命的歐式回望期權的定價 -
Parameters of the dynamic statistical model at the time - varying parameters, variation of parameter reflects the variable trend of seepage
動態模型的統計參數是隨時間變化的時變參數，參數的變化反映了大壩的滲流變化趨勢。 -
The afo is an adaptive observer with strong tracking properties, which can accurately estimate the unknown time - varying parameters besides nonlinear state function
該觀測器演算法是一種具有強跟蹤性質的自適應觀測器，能在估計非線性狀態函數的同時準確估計未知時變參數。 -
A parameters following estimation for the time - varying system
時變系統最小均方演算法的性能分析 -
Identification of time - varying modal parameters of structure using output error time series model
利用輸出誤差時間序列模型識別結構時變模態參數 -
The method presented has the capability of tracking the time - varying parameters and detecting the damages, including the damage location and severity
該方法能夠追蹤時變的參數，檢測損傷，包括損傷的大小和位置，以及損傷發生的時刻。 -
However, in fact, thephysical parameters and dynamical character of the structure duringthe occurrence ofdamage are time - varying, and the response signalbehaves a non - stationary character. thus, it is generally recognized that the linear time - varying ( ltv ) model is moreappropriate and better than linear time - invariant ( lti ) model to capture theinstantaneous dynamical behaviors
然而事實上，結構的損傷使得其物理參數和動態特性隨著時間而變化，結構的響應具有非穩態的特徵。因此，利用線性時變系統模型，獲取系統的時變特徵，才更有利於結構破損診斷，線性時變系統的參數識別也受到了越來越多的關注。 -
In order to enhance the control quality for the dynamic system with multivarying, large inertia and varying parameters, the personifying intelligent control and it control strategy are introduced and the ball mill control in pulverized coal system as an object, and the implementation of the contract strategy of programmable controller is presented and real - time emulation
摘要為提高多變量、大慣性及變參數動態系統的控制質量，以制粉系統中鋼球磨機控制為對象，介紹了仿人智能控制、控制方案以及用可編程式控制制器對控制方案的實施，並進行了實時模擬。 -
Especially, in the essence, multi - level recursive predication method divides the condition on system into two parts : time - varying parameters predication and the condition predication on system on the basis of the former
特別是多層遞階預報方法，其本質是把對系統的狀態預報分為兩部分，對系統時變參數的預報和在此基礎上的對系統的狀態預報。 -
Besides, we show the method and result in the research of the heart rate variability. it is proved that the nonlinear analysis is much more effective in the clinical diagnoses of heart disease. by the end of this dissertation, we list some problems for our future works including chaos in discrete time ~ varying systems, srb measures of the chaotic map in the sense of marotto, complex dynamics of both h. h. model and cou - pled integrate - and - fire models, strange attractors in h6non systems with classical parameters
在本文的第五章中，我們給出了一類一維時滯泛函微分方程穩定性的判別法，而這一方程本身可以用來刻畫連續的具有動態閾值的神經元模型；此外，我們介紹了非線性指標在心律變異中的具體應用與部分的分析結果，以進一步說明非線性分析在心律變異研究中的有效性和實用性 -
Then, robust fault detection and isolation problems for time - delay linear parameter - varying systems are investigated in this thesis. the residual generators are created by parameter - dependent filters, i. e. the designed filters are time - varying whose matrices parameters are known functions of time - varying parameters
其次，本論文研究了時滯lpv系統的魯棒故障檢測與分離問題，利用參數依賴濾波器構造殘差產生系統，即所設計的故障檢測濾波器也是時變系統，其參數矩陣是時變參數的確定函數。 -
( 2 ) wavelet networks are introduced to gpc. several nonlinear gpc algorithms based on wavelet networks are given : a nonlinear gpc base on predictive error compensation is designed, in which wavelet network is used to model the predictive error ; a new structure of multi - step predictive controller is constructed in which wavelet networks are used to identified the nonlinear directly ; a single - step predictive controller is given, in which a wavelet networks are used to estimate the parameters of the linear time - varying system. ; an a implicit gpc for nonlinear system is presented, in which wavelet networks are used to estimated the time - varying parameters of the generalized predictive controller
（ 2 ）將小波網路與非線性廣義預測控制相結合，設計了多種基於小波網路的非線性廣義預測控制：考慮到建模誤差對多步預報的影響，引入小波網路估計預報誤差，對輸出預報進行修正，提高了控制性能且不影響系統的穩定性；利用小波網路構造多步預測器，設討了非線性系統多步預測控制演算法；利用小波網路逼近非線性系統廣義預測控制器的時變參數，設計了非線性系統隱式廣義預測控制器；利用小波網路辨識時變系統參數並直接用於構造控制器，設計了非線性系統單步預測控制演算法。 -
Analyses of a linear system with periodically time - varying parameters based on the chebyshev polynormal expansion
多項式展開的線性周期時變機械繫統解法分析 -
( 4 ) the dynamic data forecasting model of ground settlement is studied, a new prediction model of grey - time serial with time - varying parameters characters is proposed
（ 4 ）研究了隧洞施工中地表沉降動態預測模型，提出了時變參數灰色?時序動態預測模型，並建立了一種改進的時變灰色模型。 -
Finally, the effectiveness of the proposed method is verified through theoretical and numerical results for systems with both unknown time - invariant and time - varying parameters
理論分析與模擬結果表明，跟蹤誤差信號在一預先指定區間上收斂到零，在起始區間段上被囿於死區所確定的區域中；並保證閉環系統中所有信號是有界的。
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