block matrix 中文意思是什麼
block matrix
解釋
分矩-
In this paper we first give the definition of a type of block upper triangular matrix algebras and then characterize linear surjective maps that preserve rank one from one block upper triangular matrix algebra of this type to another
本文的主要結果是確定了一類分塊上三角矩陣代數的保持秩一的線性滿射。本文首先定義了一類分塊上三角矩陣代數（ c ） ，然後確定了保持秩一的線性滿射。 -
General forms for moore - penrose inverses of a matrix by permutation - block
矩陣在置換分塊下的廣義逆通式 -
Block circulant matrix
分組循環矩陣 -
Hence an algorithm for the minimal polynomial of a block circulant matrix over the field is presented
） bner基，從而給出了求塊循環矩陣的極小多項式的演算法。 -
So finding the minimal polynomial of a block circulant matrix is transformed into computing the reduced grobner basis of a kernel of a ring homomorphism
因此，將求域上塊循環矩陣的極小多項式轉化為求一個環同態的核的簡化gr （ -
A sufficient and necessary condition for determining singularity of a block circulant matrix over a quaternion division algebra over a field is given, and two algorithms for the inverse of a nonsingular block circulant matrix over the quaternion division algebra are presented
?給出了域上的塊循環矩陣可逆性的充要條件及其逆矩陣的演算法。 ?給出了四元素可除代數上的塊循環矩陣可逆性的充要條件及其逆矩陣的兩種演算法。 -
Through ( multi - level ) bordered block partition of the power system topology matrix, a bbdf coefficient matrix which is suitable for above decomposition is formed. when the equation is solved with parallel iterative method, convergence acceleration is achieved through damping newton method
通過採用（多重）對角加邊的方法進行電力網路拓撲分割，以形成適合以上分解法求解的對角加邊形式的系數矩陣，并行求解后並對迭代過程進行阻尼牛頓法修正，以達到加速收斂的作用。 -
A criterion for the positive definiteness of a block - matrix and its application
分塊矩陣的正定性準則及其應用 -
Ldpc ( low density parity check ) code is a kind of linear block code that defined by very sparse parity matrix or tanner graph, and it is also called gallager code since gallager initially presented it
Ldpc （ lowdensityparitycheck ）碼是一類用非常稀疏的校驗矩陣或二分圖定義的線性分組糾錯碼，最初由gallager發現，故亦稱gallager碼。 -
The linear block code is called a binary low - density parity - check code if it is based on a sparse parity - check matrix. this sort of code was originally proposed by dr. gallager in 1962, which cannot attract a large amount of interest at that time
低密度奇偶校驗（ ldpc ）碼是基於稀疏校驗矩陣的線性分組碼，它最初由gallager於1962年提出，當時並未受到人們的重視。 -
Numerical results show the dynamic deflation for the implicitly restarted block lanczos method is effective for computing the multiple or clustered eigenvalues of a large sparse symmetric matrix
數值結果表明，動態收縮的隱式重新開始塊lanczos方法，對計算大型稀疏對稱矩陣的重特徵值或密集特徵值是有效的。 -
A relation between the inverse elements is found, and a new algorithm for inverting a block tridiagonal matrix is established
當考慮該表達式的結構特徵時，可得到塊元素的遞推關系式，由此得到一個求逆矩陣的新演算法。 -
Abstract : by comparing the channel capacities hetwem orthogonal space - time block coding and multi - antenna array system over rayleigh fading channel, some capacity loss for orthogonal space - time block coding is obtained, which is a function of the code rate, the rank of channel matrix and the number of transmitter and receive antennas, although the system of orthogonal space - time block codes is simple and easy to implemented. if is also shown that there is no capacity loss only if both the code rate and the channel matrix rank are all one
文摘:在研究瑞利衰落條件下正交空時分組編碼通道容量的基礎上，將其與多發送多接收天線系統的通道容量進行了比較.比較結果表明，正交空時分組碼雖編碼簡單，易於實現，但在通道容量方面存在較大的損失，損失的程度與編碼碼率、通道矩陣的秩及收發天線數等因素有關.進一步研究表明只有當編碼碼率和通道矩陣的秩都為1時，才沒有通道容量的損失 -
Ldpc code belongs to the linear block code which is encoded by the information sequence multiplies generator matrix. although the parity - check matrix of ldpc code is sparse, the generator matrix is not. the encoding complexity of it is linearly proportional to the square of code length
Ldpc碼屬于線性分組碼，線性分組碼的通用編碼方法是由信息序列根據碼的生成矩陣來求相應的碼字序列，盡管ldpc碼的校驗矩陣是非常稀疏的，但它的生成矩陣卻並不稀疏，這使得其編碼復雜度往往與其碼長的平方成正比。 -
Spline curves defined in the space constructed by polynomial and hyperbolic functions are studied in this paper. the main research contents and achievements are as follow : firstly, we generate the cardinal extended complete chebychevian ( ect ) - systems on the space constructed by polynomial and hyperbolic functions, then introduce the algebraic - hyperbolic b - spline space and identify the dimension law and zero properties. the existence of a basis of splines with minimal compact supports is demonstrated, and functions named non - uniform algebraic - hyperbolic b - splines are obtained by solving certain linear equations with a block matrix
本文主要研究定義在多項式和雙曲函數構成的空間上的樣條曲線，其內容和完成結果如下:一、生成由多項式和雙曲函數構成的空間上的一組典範式ect （ extendedcompletechebychevian ）組及其對偶， ，證明非均勻代數雙曲b樣條空間的維數定理和零點定理，直接通過解塊矩陣線性方程組得到具有最小緊支撐的非均勻代數雙曲b樣條函數，進而構造非均勻代數雙曲b樣條曲線，還具體給出低階的表示 -
The definition of a mixed block matrix is given, and an algorithm for the inverse of a given mixed block matrix over a group algebra of a finite group over a field is presented, and a method of determining singularity of this mixed block matrix is given
?給出了域上有限群的群代數上的塊對稱循環矩陣的奇異性判別法及其逆矩陣求法. ，定義了域上有限群的群代數上的混合塊矩陣，並給出了它的可逆性的判別法及其逆矩陣的求法 -
Material balance and energy balance equations of complex multi - effect evaporation system were expressed in matrix equation, which has the advantages of clear structure and high modularization. by holding or omitting correlation block - matrix in matrix equation, matrix equation could be used to describe the difference of forward - feed, back - feed and cross - reed multi - evaporation system with or without solid separation, extra steam being led off to preheat material liquid, condensation water flash, or solution flash. the models include design and operation
該模型利用矩陣方程具有結構清晰和高度模塊化的特點，將復雜多效蒸發系統的物料及熱量衡算方程組以矩陣形式表達，通過保留或舍棄矩陣中特定功能模塊，模型就能代表有或無固相析出、有或無引出額外蒸汽預熱原料液、有或無冷凝水閃蒸、有或無溶液閃蒸等不同情況以及各種情況任意組合的併流、逆流、錯流多效蒸發過程，從而實現模型的通用性。 -
Application of block matrix
分塊矩陣的應用 -
We generalized the equality on the rank of one kind of matrix by block matrix and its elementary transformation
摘要利用分塊矩陣及其初等變換將一類矩陣秩的等式推廣。 -
Firstly, considering the uncertainty as full - block matrix whose h norm is bounded, a robust controller is designed and robust stability of the system is analyzed using method. secondly, given the structure information of the uncertainty, synthesis is adopted to design a robust - performance controller to eliminate conserveness in h design. finally, combining the individual advantage of h2 control and h control, a mixed h2 / h optimal controller is designed based on linear matrix inequality which makes the system have good time - domain lqr performance as well as robust stability
首先，將未建模不確定性看成是范數有界的滿塊矩陣，設計了h _魯棒控制器並用方法分析了系統的魯棒穩定性；其次，考慮未建模不確定性的結構信息，利用綜合設計了魯棒性能控制器，克服了h _控制理論設計時的保守性；最後，結合h _ 2控制和h _控制各自的優勢，基於線性矩陣不等式（ lmi ）設計了h _ 2 h _混合最優控制器，使得系統既具有良好的時域lqr性能又具有較強的魯棒穩定性。
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