space of matrices 中文意思是什麼
space of matrices
解釋
矩陣空間-
The differences on resolution capability and the performance of estimation between beam - space processing and element - space processing are analyzed. transforming matrices are designed for the consideration of depressing the resolution threshold and estimation variance
分析比較了波束域處理與陣元域處理的分辨能力以及估計性能，並從降低分辨門限和估計方差角度考慮，給出了轉換矩陣的構造方法。 -
Linear maps preserving inverses of matrices on symmetric matrix space
對稱矩陣空間上保逆線性映射 -
The paper is concerned with periodic solutions to nonautonomous second order hamilton systems where, m : [ 0, t ] - s ( rn, rn ) is a continuous mapping in the space s ( rn, rn ) of symmetric real ( n x n ) - matrices, such that for some u > 0 and all ( t, z ) [ 0, t ] x rn, ( m ( t ) x, x ) > u | x | 2. a s ( rn, rn ), f : [ 0, t ] x rn r is continuous and f : [ 0, t ] xr r exists, is continuous and we study the existence of periodic solutions of the systems by using ekeland variational principle and the saddle points theorem. we suppose that the nonlinearity vf and potential f belongs to a class of unbounded functional. our work improves the existed results. we obtained the results of multiplicity of periodic solutions of the systems by using lusternik - schnirelman category theory and the generalized saddle points theorem, and the functional does not need the condition of constant definite. at last, we obtained the existence of infinity many distinct periodic solutions of the corresponding non - perturbation systems by using the symmetric mountain pass theorem
（ ? ， ? ）為r ~ n中內積， | ? |為對應范數。 f [ 0 ， t ] r ~ n r連續， ? f （ t ， x ）存在且連續， h l ~ 1 （ 0 ， t ； r ~ n ） 。利用ekeland變分原理和鞍點定理討論了該系統周期解的存在性，把非線性項和位勢函數放寬到一類無界函數，推廣了這方面工作的一些已有結果；利用廣義鞍點定理和lusternik - schnirelman疇數理論得到了該系統的多重周期解，取掉了泛函的常定要求；最後利用對稱山路定理得到沒有擾動時系統的無窮多周期解。 -
Stochastic subspace identification method is the major in this article, and this method is based on the theory of projection of row space, and also uses qr decomposition, svd decomposition as well as least squares estimate to state space matrices of the discrete system so as to achieve the parameters of the dynamic behavior and it can achieve an accurate result
隨機子空間法是本文的論述重點，它運用了行空間投影的理論，通過qr分解和svd分解以及最小二乘估計來識別離散后的系統狀態空間矩陣，從而得到系統的動力學特性參數，識別精度較高。本文詳細的推導了隨機子空間法的理論公式，並編寫出相應的matlab程序。 -
A note on the lower partial ordering and space preordering of hermitian non - negative definite matrices
序和預偏序的一個注記 -
On views separation and coordinate standardization, a coordinate axis projection - based approach and an image scanning - based approach are proposed for views separation, the former reduces the compare times of 2d primitive in drawings and raises the efficiency simultaneously, the latter can separate free nember views of engineering drawing accurately and it has no correlation with complexity of primitive, then, two sets of 2. 5d coordinate systems are introduced as intermediates to relate the 2d original drawing system to the 3d space projection coordinates anfd a formal technique is developed for constructing transformation matrices between coordinates
3 .在工程圖視圖分離和坐標規格化方面，提出了改進的坐標軸投影分離演算法和基於圖像掃描的視圖分離演算法。前者減少了工程圖中二維實體的比較次數，提高了運行效率;後者可以準確分離具有任意視圖數目的工程圖，且演算法的穩定性與邊界復雜度無關。通過引入二維半中間坐標系推導出了從繪圖坐標繫到空間投影坐標系轉換的轉換運算元並給出了基於轉換運算元的坐標規格化演算法。 -
Through the equivalent transformation between the linear combination relation of the father - son state in the state equations and the incidence relation of the father - son state nodes in the weighted network, it is realizable to build the block contact of the general structure and the system state variable is the earliest starting time, and collect the incident matrices of the dividing branch nets in whole net, then the parameter matrices of the state space model are obtained
通過狀態方程中父狀態與各子狀態之間的線性組合關系與塊網中父狀態結點和各子狀態結點之間的帶權父子關聯關系之間的等價轉換，實現以工序的最早開工時刻為狀態變量的系統狀態模塊和泛模塊的介面與提取總網「劃分子網」的關聯矩陣得到狀態空間模型的參數矩陣。 -
This thesis introduces the concept of qosmecs and proposes a new method to construct the square - matrix embeddable space - time block codes matrices based on the works of tarokh, alamouti and jafakhani etc. comparing to the previous works, the construction formulas presented here are much simple with the same performance of the matrices constructed
本文基於tarokh 、 alamouti和jafakhani等人的研究成果，引入了準正交方陣嵌入碼的概念，提出了一種新穎的方陣嵌入空時分組碼的設計方法。在生成同樣性能碼矩陣的情況下，本文提出的構造公式與已有設計方法相比要簡單得多。 -
In symbolic space dense - chaotic systems with respect to subshifts of finite type are studied. by block matrices, such systems are described concretely, and a sufficient and necessary condition is obtained
摘要運用分塊矩陣思想，對符號空間有限型子轉移具有稠密混沌的系統作了具體刻畫，得到了稠密混沌的一個充要條件。 -
An optimization algorithm for the problem of control reconfiguration in response to operating condition changes or abrupt system component failures is presented here. the algorithm provides an output feedback controller that not only stabilizes the impaired system, when possible, but also preserves much of the dynamics of the unfailed system. the design is such that the closed - loop system is robust with respect to inevitable uncertainties / modeling errors on the state - space matrices of the impaired system
文中對控制律重構的三種方法進行了詳細的研究和比較：控制律優化演算法由於考慮了實際中可能出現的損壞后系統模型的不準確性，所以由該演算法得到的控制器設計方法在受損系統狀態矩陣不確定的情況下，依然能夠保證閉環系統的穩定性。 -
An explicit expression to compute h norm and obtain h controller, which are recently obtained for continuous - time state - space symmetric systems, are extended to more general case of continuous - time symmetric systems. the computations of h norm only need to compute the maximum eigenvalue of a symmetric matrix, which only contains the system matrices
把一最近文獻得到的有關連續時間狀態對稱系統h ~范數和h ~控制器的明顯解結果推廣到更廣泛連續時間對稱系統，所得到h ~范數計算僅包括系統矩陣。
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