upper bound method 中文意思是什麼
upper bound method
解釋
上限法-
Turbo codes represent the new code structures, which consist of pccc ( parallel serially convolutional code ) and sccc ( serially concatenated convolutional code ). in this paper, the background of turbo codes are firstly introduced, which includes the base principle of error correction code 、 block code and convolutional code ; the principle of turbo code and the iterative decoding is secondly expanded ; the key decoding algorithm : a revised map algorithm and iterative decoding theory are detailed ; then, a new turbo code structure : hccc ( hybrid concatenated convolutional code ) is presented, and the capacity of this code method is analyzed, the average capacity upper bound is derived ; at last, this code is simulated on awgn ( additive white gaussian noise ) channel and rayleigh fading channel
本文首先介紹了turbo碼的背景知識，包括差錯控制的基本原理、分組碼和卷積碼；然後闡述了turbo碼的基本原理，包括turbo編譯碼器結構及迭代譯碼原理；較為詳細地描述了關鍵的譯碼演算法： ?種改進的最大后驗概率（ map ）譯碼演算法及迭代譯碼演算法；提出了一種新的turbo碼結構：混合turbo碼（混合級聯卷積碼） ；並用編碼性能聯合界分析方法對混合turbo碼進行了性能分析，得出了其平均性能上界；並在高斯白噪聲通道和瑞利衰落通道上分別作了一些應用研究及計算機模擬實驗。 -
Critical height analysis for bedding rock slopes using the upper - bound method of limit analysis
層狀巖質邊坡臨界高度極限分析上限解 -
Abstract : in this paper, the kinematically admissible velocity fields are established by using the metal flow patterns based on the experiments, and the configuration dimensions of billet and the curves of load - stroke in precision forging process for spur gear from solid billet are simulated on computer by upper bound method. the results acquired in the simulation are in good agreement with those obtained in the experiments
文摘:本文利用有實驗根據的變形流動模式建立動可容速度場，利用上限法模擬用實心坯料精鍛直齒圓柱齒輪時坯料的外形尺寸變化和力?行程曲線，所得結果與實驗測定值很一致，可供沖擠精鍛工藝設計參考。 -
Nonlinear plasticity limit analysis upper bound method of gangue hill stability
矸石山穩定性非線性極限分析上限法 -
The necessary condition has been obtained on forming rolling workpiece surface defect by means of upper - bound method and least energy principle
以此為基礎，並藉助于上限原理和最小能量原理，獲得了楔橫軋成形階梯軸時軋件表面缺陷形成的必要條件。 -
Because the kinematically - admissble cyclic strain rate field required in kninematical - type theorem of shakedown analysis is rather difficult to be constructed, shakedown analysis based on kinematcal theorem cannot be directly applied. some conditions of kinematical - type shakedown theorem are released by ksnig and then the shakedown rules respectively for alternating plasticity and incremental collapse are obtained, for the numerical method based on the upper - bound theorem is formulated
兩種方法的特點是：運用一種分級循環加載方式來尋找機動許可的塑性應變率場，利用這兩種機動安定準則的特點來判斷結構的安定性，從而得到機動安定性分析的安定載荷。 -
Upper bound limit analysis of slope stability by element integration method
邊坡穩定極限分析的單元集成法 -
With the method of integral within ordered product of operators, we obtain the analytical expression of quantum information counterpart of mutual information. the coherent information, as a function of input thermal state power and thermal noise channel power, we discuss the upper and lower bound for quantum gaussian channel introduced by holevo - werner and by quantum codes
用正規乘積內的算符積分技術求出了互信息的量子對應物? ?相干信息用輸入熱噪聲信號功率和通道熱噪聲功率表示的公式。討論了由holevo和werner引入的量子高斯通道量子容量的上界及由量子編碼所確定的下界。 -
Calculation on limit load of reinforced concrete deep beam by upper - bound method
用上限方法求解鋼筋混凝土深梁極限荷載的方法 -
Using engineering method and upper - bound method, this dissertation deduced a calculation formula for the load of powder radial extrusion
利用文獻提供的屈服準則和力學模型，運用工程法和上限法得出了具有工程意義的粉末擠壓擠壓力計算公式。 -
Stability analysis of soil slopes stabilized by piles considering effect of soil anisotropy using upper - bound method of limit analysis
框架結構安定性分析的線性規劃法及其應用 -
Stability analysis of pile - stabilized slopes considering both nonhomogeneity and anisotropy of soil strength using upper bound method of limit analysis
考慮非均質各向異性效應的阻滑樁加固土坡穩定性分析 -
This feature reflects the physical phenomenon of breaking of waves and development of shock waves. in the fields of fulid dynamics, ( 0. 2. 1 ) is an approximation of small visvosity phenomenon. if viscosity ( or the diffusion term, two derivatives ) are added to ( 0. 2. 1 ), it can be researched in the classical way which say that the solutions become very smooth immediately even for coarse inital data because of the diffusion of viscosity. a natural idea ( method of regularity ) is obtained as follows : solutions of the viscous convection - diffusion pr oblem approachs to the solutions of ( 0. 2. 1 ) when the viscosity goes to zeros. another method is numerical method such as difference methods, finite element method, spectrum method or finite volume method etc. numerical solutions which is constructed from the numerical scheme approximate to the solutions of the hyperbolic con - ervation laws ( 0. 2. 1 ) as the discretation parameter goes to zero. the aim of these two methods is to construct approximate solutions and then to conside the stability of approximate so - lutions ( i, e. the upper bound of approximate solutions in the suitable norms, especally for that independent of the approximate parameters ). using the compactness framework ( such as bv compactness, l1 compactness and compensated compactness etc ) and the fact that the truncation is small, the approximate function consquence approch to a function which is exactly the solutions of ( 0. 2. 1 ) in some sense of definiton
當考慮粘性后，即在數學上反映為（ 0 . 1 . 1 ）中多了擴散項（二階導數項） ，即使很粗糙的初始數據，解在瞬間內變的很光滑，這由於流體的粘性擴散引起，這種對流-擴散問題可用古典的微分方程來研究。自然的想法就是當粘性趨于零時，帶粘性的對流-擴散問題的解在某意義下趨于無粘性問題（ 0 . 1 . 1 ）的解，這就是正則化方法。另一辦法從離散（數值）角度上研究僅有對流項的守恆律（ 0 . 1 . 1 ） ，如構造它的差分格式，甚至更一般的有限體積格式，有限元及譜方法等，從這些格式構造近似解（常表現為分片多項式）來逼近原守恆律的解。 -
Large - scale optimization and its application to upper bound theorem using kinematical element method
大規模優化及其在上限定理有限元中的應用 -
Finite element method of upper bound theorem based on the generalized plastic theory and its application
基於廣義塑性理論上界法的有限元法及其應用 -
We put forward an adapted wavelet packet transform method - - adapted wavelet packet transform based on r - d rule which selects the best wavelet packet base according to r - d rule, in which best quantization method and huffman coding are used. this method produces the best compression version such that the error upon reconstruction is within an upper bound fixed a given value and obtains satisfactory compression results
這種方法依據r - d準則優選出最佳小波包基，在優選過程中，用到了最佳量化法和霍夫曼編碼，從而保證了在給定的失真內使得壓縮比做的最高，取得了比較滿意的效果，為將來在dsp上實時的實現做好了鋪墊。 -
It is observed experimentally and algorithmically that when training data are noisy and overlapping, many support vectors have lagrange multipliers on the upper bound. if it were known beforehand which examples are bound support vectors, these examples could be removed from the training set and their values are fixed at the upper bound. due to the reduced free variable counts, this method is promising to improve training time
實驗和演算法推導顯示在強噪聲和類間重疊數據下訓練svm得到的支持向量很多處于邊界位置，如果我們能夠預先知道哪些樣本是邊界支持向量，這些邊界支持向量的值就可以被固定在邊界處，從而不參加訓練過程，這樣，訓練過程中要優化的變量就可以減少，運行時間也可以縮短。 -
The m - homogeneous homotopy method gives a better upper bound for the number of solutions to a polynomial system. however, two crucial problems are conferred when getting this bound
在計算上界的過程中遇到了兩個問題，這兩個問題計算的復雜度本質上都是指數量級的。 -
Stability analysis of slopes with stabilizing piles based on upper - bound method of limit analysis
框架結構安定性分析的基本定理及簡化 -
By the mean ' s inequality and truncated method, the upper bound of the distribution of the partial sums is given
利用矩不等式和截尾方法，得到了部分和分佈函數的上界。
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