adjoint system 中文意思是什麼
adjoint system
解釋
伴隨系統-
Based on the general mathematical models of multibody system dynamics such as the kinematics models of multibody dynamical systems, the ordinary differential equation models and the differential algebraic equation models of dynamics, general forms of the sensitivity equations of the systems are deduced by using direct differentiation method and adjoint variable method
基於通用的多體機械繫統運動學數學模型，常微分方程形式的動力學數學模型、微分/代數方程形式的動力學數學模型分別採用直接微分方法、伴隨變量方法推導出了系統的狀態靈敏度方程的通用形式。對于微分/代數形式的數學模型 -
Developing data assimilation system of numeric predict model by using the adjoint code technique is one of new four - dimensional data assimilation methods
用伴隨碼方法構造數值預報模式的伴隨同化系統是目前較新的四維同化方法之一。 -
Developing data assimilation system of numeric predict model by the use of adjoint coding technique is one of the new four - dimensional data assimilation methods
而用伴隨碼方法構造數值預報模式的四維變分伴隨同化系統則是目前國際主流的方法之一。 -
First we consider the spectral properties of the operator corresponding to this system and obtain that all points on the imaginary axis except for zero belong to resolvent set of the operator, zero is an eigenvalue of the operator and its adjoint operator with geometric multiplicity one
先討論了對應于該系統的主運算元的譜特徵並且得到了在虛軸上除了0點外其它所有點都屬于該主運算元的豫解集， 0是該主運算元及其共軛運算元幾何重數為1的特徵值。 -
The design on twice civil air defense alarm system in this paper adjoint spread spectrum technology and scm technology based on spread spectrum communication theory to realize remodel of once cvivil air defense alarm system
本文設計的二次人防警報就是在擴頻通信理論的指導下，將擴頻技術和單片機技術相結合對一次人防警報實現改型。 -
The results of numerical experiments, using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5, show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state, can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity, but also wind, temperature and pressure are assimilated into the model
非靜力中尺度數值模式mm5的四維變分資料同化系統進行的數值試驗結果表明： 「開關」變量保持與基態一致，所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似，伴隨模式所計算的梯度值能夠為最小化過程提供較好的下降方向；郭氏降水參數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速度； 「開關」變量的存在也不影響將風、溫度、氣壓和比濕結合起來同化對mm5降水預報準確性的提高。 -
When using the adjoint - model assimilation system, the experiment adding cdw can directly improve the wind forecast, but comparing the one not adding cdw it has little advantage over other elements forecast
根據同化試驗結果，對此次暴雨動力場模擬對比分析后認為，同化雲導風后可改善動力場的配置，提高暴雨模擬精度。 -
Mm5 adjoint - model assimilation system not only can improve the initial field effectively and promote the coordination with the model but also can enhance the forecast on the precipitation and other elements. the assimilation of cdw has an improvement on quality of upper wind. the effect of direct numerical simulation with utilizing the cdw to amend the initial field gains the advantage over the one not
結果表明， mm5伴隨模式同化系統能有效改善初始場與模式的協調能力，提高模式對于降水場和其它要素場的預報；使用雲導風資料修正初始場后直接模擬的效果比未使用時直接模擬的效果要好，對部分區域的強降水預報精度有一定程度的改善；使用伴隨模式同化系統后，加入雲導風資料的同化試驗對其它要素的改善與直接同化常規資料的效果相比，改善優勢不明顯，但從各要素的誤差來看，對于風場的改善最好。 -
The zero dynamics were divided into several types, and the relations between the zero dynamics of general nonlinear system and that of its adjoint system norm were discussed by using functional analysis
摘要將零動態分為幾種類型，運用泛函分析等工具，研究了一般非線性系統與其作為仿射非線性的系統的伴隨系統的零動態之間的關系。 -
Second, the experiments of modifying the terrain parameter by means of the mm5 adjoint - model assimilation system are carried out
其次進行了將mm5伴隨模式用於修正模式地形參數的試驗研究。 -
The example of a numerical prediction model shows the basic method of developing adjoint assimilation system of numeric predict model
而後以一個數值預報模式為例，說明了構造伴隨模式同化系統的基本方法。 -
The result shows that the mm5 adjoint - model assimilation system can effectively assimilate the conventional data and adjust the initial field
對比研究結果表明， mm5伴隨模式能有效同化常規觀測資料，調整初始場。 -
Based on the principles of scaling parallel computing and variational data assimilation, this dissertation systematically studies scaling parallel algorithms and parallel implementing technologies of adjoint models, and designs high performance scaling parallel computing adjoint models. the researches are aimed at the " military global numerical weather advanced prediction system " and the " national global and regional multiple scale advanced prediction system ", and the researches closely follow international parallel computing and numerical weather forecasting technology studies
本文針對「十五」期間「我軍新一代全球數值預報業務系統」 、國家氣象局組織的「新一代多尺度數值預報系統」 ，緊跟國際并行計算和數值氣象技術研究前沿，基於可擴展并行計算和伴隨變分同化原理，研究伴隨模式可擴展并行演算法和并行實現技術，設計高效可擴展并行計算伴隨模式。
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