時變線性模型 的英文怎麼說

中文拼音 [shíbiànxiànxìngmóxíng]
時變線性模型 英文
vary linear model
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 線性 : [數學] [物理學] linear; linearity線性代數 linear algebra; 線性方程 linear equation; 線性規劃 line...
  • 模型 : 1 （仿製實物） model; pattern 2 （制砂型的工具） mould; pattern3 （模子） model set; mould patter...
  1. The complex nonlinear pursuit - evasion model of two spacecraft in near - earth coplanar orbit is simplified to linear model, the circular region the radius of which is equal to capture radius is defined as target set, capture is achieved when the evader come into the target set and the game is over ; the boundary of useable part ( bup ) is determined, and the analytical form solution of the linear equations is obtained by backward integration of the state variables from the bup, the linear barrier of the pursuit - evasion model and the optimum thrust of the both sides are thus obtained

    本文將近地共面軌道內運動的兩飛行器非線性追逃模型簡化為線性模型，以捕獲半徑的圓域定為目標集，確定目標集邊界上的可用部分，並以此為各狀態變量的起點，對時間進行倒向積分，求得線性方程組的解析解，從而確定了該追逃模型的線性界柵，以及界柵上對策雙方的最優推力，即求得了滿足最優策略時相對運動的軌跡和推力。
  2. Two nonlinear simulation methods are designed by curve fitting method and anfis which seem simply and right in the simulation experiment. based on the model different control strategies also were realized in detail such as chopped current control ( ccc ), angular position control ( apc ), amplitude - change ccc and pi control. a simple torque sharing function ( tsf ) method and a tsf controller were designed which decreases torque ripple effectively

    文章中還建立一種基於模糊神經網路的非線性模型，並對比分析了三種方法，模擬中確定了電機的最優開通關斷角，在此基礎上實現了電流斬波控制、角度位置控制、變幅值電流斬波控制以及分段雙閉環pi控制，模擬結果表明，它實現了電機的正常運行，很好的抑止了電機轉矩脈動，同時有效地降低了噪聲。
  3. The equations of the mean value functions and the covariance functions are established for dynamical systems whose inputs are fuzzy stochastic processes. an existence and uniqueness theorem of ito fuzzy stochastic differential equations is proved, some explicit representations of solutions and the equations of statistical characteristics are deduced for linear fuzzy stochastic differential equations, and numerical methods to nonlinear fuzzy stochastic differential equations are proposed, the conditions for stability and observability of fuzzy linear systems are derived. the kalman filter algorithms of linear fuzzy stochastic systems are brought forward

    主要成果包括：提出了模糊隨機變量協方差和反向協方差的概念；研究了二階模糊隨機變量的均方收斂性，並在此基礎上得到了均方模糊隨機分析、平穩模糊隨機過程及其譜分解的若干定理；根據均方模糊隨機分析理論，得到了輸入為模糊隨機過程的線性系統的輸出輸入統計特徵關系方程；證明了ito型模糊隨機微分方程解的存在唯一性，並給出了ito型線性模糊隨機微分方程解的表達式，統計特徵方程以及非線性模糊隨機微分方程的數值解法；得到了模糊線性系統的穩定性和可觀性條件、線性模糊隨機系統統計特徵方程和線性模糊隨機系統的kalman濾波演算法；研究了當觀測值是模糊數據時，線性回歸模型的建立。
  4. The numerical results, comparing with those obtained by linear model, show that the nonlinear effect of permeability depending on volume strain of solid phase cannot be ignored as deformation is not too small

    與視滲透率為常數的線性模型的計算結果比較表明，在變形較大時，滲透率隨固體相體積應變變化這一非線性效應不容忽視。
  5. ( 4 ) a nonlinear model including the loss of cross - sectional area of corroded rebar, the reduction of mechanical properties of corroded steel and the degradation of the bond strength between concrete and corroded rebar was presented

    氯離子擴散系數是一個隨時間、擴散深度和氯離子濃度變化的變量。 （ 4 ）建立了考慮銹蝕鋼筋截面面積減小、力學性能下降以及混凝土與鋼筋之間粘結性能退化的非線性模型。
  6. Based on piecewise linear model, this paper proposes an estimation method that first estimates the slope of linear variant and the channel impulse response at the middle time of the current ofdm symbol using pilot sequences, and then estimates the whole channel impulse response through the estimated parameters

    該演算法首先利用導頻序列估計出當前ofdm符號間隔內通道線性變化的斜率和中間時刻通道的沖激響應值，然後根據線性模型利用估計出的參數得到當前符號間隔內所有時刻上的通道沖激響應。
  7. In this dissertation, the author builds up mathematical model of electro - hydraulic load simulator system. and it also builds up model of p - q servo - valve and complete system based on bond graph theory, which consider the nonlinear of orifices and real - time changing characteristic of liquid capacity in the cylinder chambers

    論文建立了電液負載模擬器的數學模型，同時，基於鍵圖理論考慮閥口流量非線性和液壓缸液容的時變特性，建立p - q伺服閥和全系統的鍵合圖。
  8. In order to analytically deduce the characteristic scaling law, we have constructed a simplified piecewise linear model that describes the characteristic phenomenon so that we can quantitatively and analytically deduce the sudden change of the rules of the fractal dimension of the strange repeller and the averaged lifetime in the region occupied by the original attractor at a critical parameter value when the repeller disappears

    為了解析地導出這種激變的特徵標度律，我們構造了一個描述這種特徵現象的簡化分段線性模型，並藉助它定量地解析描繪了當奇異排斥子在臨界參數值消失時，奇異排斥子的分數維和在原混沌吸引子區域迭代的平均生存時間的突變。
  9. The second part of the thesis includes a derivation of reduced order models for the activated sludge process. firstly, the paper introduces the derivation of time - varying linear state - space models for the anoxic part and the aerobic part. secondly, by integrating the anoxic part model with the aerobic part model, we can get the resulting models - a time - varying bilinear state - space model for the activated sludge prenitrification system

    為了控制應用的需要，本文首先分別建立了缺氧池和好氧池的時變線性狀態空間模型，然後把好氧池和缺氧池的時變線性狀態空間模型結合起來得到由缺氧和好氧兩部份構成的前硝化活性污泥系統的時變雙線性模型，最後簡單描述了理想狀態下沉澱池的模型。
  10. According to the dirac constrain theory and the extended condition, we deduce the gauge generators, show the brst transformation of ( 1 + 1 ) dimension o ( 3 ) non - linear model under the new general condition. we first gain the new general commutation relations of ghost field, deduce the brst charge from gauge generator, complete the general brst quantization of the model, get green function, connecting green function and generating functional, gain three kinds of ward identities. at last, we complete the brst quantization of o ( 3 ) non - linear model with topological term in ( 1 + 1 ) dimensions space - time

    最後依據dirac約束規范理論和推廣的條件，導出了規范生成元，推導出了1 + 1維o （ 3 ）非線性模型的新的一般條件下的brst變換，給出了其brst變換與dirac規范變換的等價性，首次得到了鬼場的一般對易關系，且其一般參數為零時就回到通常的鬼場的對易關系，第一次由規范生成元導出了brst荷，進而完成了此模型的一般的brst量子化，並在此基礎上進一步導出了此系統的green函數、連通green函數生成泛函和正規頂角生成泛函，獲得了三種不同的ward恆等式。
  11. 2. the time variant nonlinear model of the laser gyro inertial surveying and attitude reference system is changed and simplified to time invariant linear model of the error states using robust analysis method. these results make frequency analysis based on transfer function become possible which is important for dynamic system analysis

    2 、採用魯棒分析方法，將激光陀螺慣性測量與姿態參考系統的時變非線性模型轉化為誤差狀態的近似線性定常模型，從而使基於傳遞函數的頻域分析成為可能，這對動態系統分析是至關重要的。
  12. 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。
  13. Author reformulate the mathematic model of engine to process the ecdp as the state parameters of model, expatiate on the prove of the filter stability, study the filter volatilization phenomenon by freezing k matrix and compensating the model by ecdp

    建模時將ecdp的變化作為擾動考慮，經模型變換將其轉化為線性模型的狀態向量，對由此產生的特殊的濾波穩定性證明方法進行了闡述。
  14. Abstract : an integrating model combining the artificial neura l network with the linear arx model and its identification method is proposed. based on that model, a multivariable nonlinear predictive control algorithm is persented. the algorithm employs the result of the linear predictive control, obtains explicit nonlinear optimal controlling inputs and doesn " t need on - line numerical optimizing which is necessary in general nonlinear model ( including ann model ) predictive control. that greatly decreases on - line computing consumption, strengthens the reliability of the algorithm and the stability of the system. the simulation results in cstr are shown

    文摘:提出了一種由人工神經網路與線性arx模型相結合的集成模型，給出了其辨識訓練方法.以此模型為基礎，提出了一種多變量非線性預測控制演算法.它利用線性預測控制的成果，得到一解析式的非線性優化控制輸入，避免了通常非線性模型（包括普通人工神經網路模型）預測控制所需的在線數值尋優計算，節約了在線計算時間，提高了演算法的可靠性和穩定性.進一步給出了在cstr反應器上的模擬實驗結果
  15. Through proper linear transformation of the origional model, we obtain the educed models which are all sigular models. we peform the uniform theory of least squares getting the best linear unbiased estimates of the coefficents and the ordinary least squares estimates

    因為這時模型協方差陣結構仍含有方差參數，因此我們的目標是尋求可行估計。我們通過對原模型做適當的線性變換，獲得了導出模型，這些模型都是奇異線性模型。
  16. If we build the logarithm linear model on the basis of the general principle of the money demand by making an adf test of variables and cointegration analysis, predicting the money demand model by ols and johansen cointegration, it would be found that the stock market of our country has had an obvious impact on the money demand according to the recursive results

    根據一般貨幣需求理論建立我國貨幣需求對數線性模型，同時進行變量的adf檢驗和協整分析，然後用ols方法和johansen協整檢驗估計貨幣需求模型。根據回歸結果認為，我國股市已經對貨幣需求產生了顯著影響。
  17. This paper adopts sequential monte carlo simulation technique and time - varying load model to assess multi - fault reliability of typical distribution network considering line capacitance constraint and power flow of distribution system

    本文在考慮線路容量約束和潮流分佈的條件下，採用序貫蒙特卡羅模擬和全年時變負荷模型評估典型配電網多重故障模式的可靠性。
  18. In addition, the comparisons of displacements, velocities, solid effective stresses and pressure, obtained respectively by nonlinear model and linear model, display that the differences of the results become more obvious as the increase of the applied load, which demonstrates that the non - linear dependence of permeability on volume strain of solid phase is important as the deformation is not too small, and therefore cannot be ignored

    此外，將本論文給出的非線性計算模型得到的位移、速度、固體有效應力和壓力等與視滲透率為常數的線性模型的結果比較表明，載荷越大，兩種模型的計算結果差異越大。而當載荷很小時，兩模型的響應相差很小。說明在變形較大時，滲透率與固體相體積應變的依賴性不容忽視。
  19. Abstract : influences of the changes of the amplitude and space frequenc y of road surface roughness on adhesion ability are simulated and analyzed by me ans of the nonlinear and time - varying tyer model made by the author

    文摘:採用作者建立的非線性時變輪胎模型，模擬分析了路面不平度幅值及路面空間頻率變化對地面附著性能的影響。
  20. Meanwhile, it is seen that the nonlinear and time - varying tyre model is useful for the sim ulation and analysis of braking performances of vehicles on rough road surface b ecause it reflects the real influence of the road surface roughness on tyre

    同時說明非線性時變輪胎模型能較真實地體現路面不平度的影響，對不平路面上車輛制動性能模擬是一個有效的輪胎力學模型。
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