iterative nature 中文意思是什麼
iterative nature
解釋
迭叢質-
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 -
Secondly, the physical nature of divergence of iterative ddm based on the schwarz alternating method in treating waveguide problems is given in this paper. also an absorbing fictitious boundary condition ( fbc ) is presented to generate an iterative ddm for waveguide problems
其次，針對helmholtz方程微分運算元的系數矩陣非正定，基於schwarz交替法的迭代區域分解法，在分析波導問題時迭代不收斂的困難，探討了產生這一問題的物理本質。 -
What this difference causes in maths is that the iterative sequence of the common nonlinear time series model develops one markov chain on general state space or multiple markov chain, while the iterative sequence of nonlinear time series models 1, 2, 3 in random environment have not possessed such better nature
這個不同之處在數學上引起的後果是：一般非線性時間序列模型的迭代序列形成一個一般狀態馬爾可夫鏈或多重馬爾可夫鏈；而隨機環境下的非線性時間序列模型1 ， 2和3的迭代序列，卻無此良好的性質。
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