矢量代數 的英文怎麼說
中文拼音 [shǐliángdàishǔ]
矢量代數
英文
vector algebra-
The procedure functions in the compare between partial image of dynamic collection and corresponding image of the airscape. in chapter 5, basing on the analysis of correlative theory of digital image, we introduce the improved fasted - down algorithm and simulative anneal algorithm, which applies to nn calculation, an d bring forward the unique and effective means, correlative original value evaluation. basing on the combination of correlative arithmetic, a stable, high - speed and exact correlative arithmetic is formed, which makes it possible to apply computer vision detection of single - needle quilting in industrial production
本文展開研究並取得一定成效：構建了基於pci總線的微機實時圖像採集系統；在採集的布料總圖（鳥瞰圖）的基礎上，通過數字圖像的數字濾波、圖像增強、邊緣檢測等處理，提取布料圖像的邊緣，對輪廓的矢量化的象素點進行搜索，得到相應的圖案矢量圖，從而確定絎縫的加工軌跡，生成加工指令；在進給加工過程中，主計算機對動態局部圖像與總圖（鳥瞰圖）的對應部分進行圖像相關的匹配計算，應用數字圖像理論，結合神經網路計算的改進最速下降法和模擬退火演算法，提出獨特而有效的相關迭代初始值賦值方法，形成穩定、高速和準確的相關運算，實現單針絎縫視覺測量和自動控制。Using matlab and its add - ons simulink, through establishing simulation maths model, the paper integrates open chain vector equation ( describing motion restriction ), numerical value simulation ( computing velocity and displacement while given acceleration ) and matrix algebra, etc. to accomplish dynamic simulation for the robot and verifies the results for kinematics of the robot using analysis method, and it establishes foundation for following study for the robot such as kinetics, control, etc
利用matlab及其附加軟體simulink ，通過建立模擬數學模型，綜合開環矢量方程（描述運動約束） 、數值模擬（在加速度已知時計算速度和位移） 、以及矩陣代數等來完成機器人動態模擬，對所研究的機器人運動學分析結果進行驗證，結果基本一致，為機器人的后續研究，如動力學，控制等奠定基礎。The paper is mainly based on geography, ecology, sight ecology, region location theory and system theory. by interpreting the mss remote sensing image of 1970s and the tm remote sensing image of 1980s and the end of 1990s in keerqin sandlot based on background database and expert information, we have achieved the three periods vector data of land desertification of the research area, then we have disposed the data property by using the powerful spatial analysis function of arc / info and achieved the information extraction and analysis supported by arcview and erdas imagine. thus the rule of temporal and spatial variation of land desertification in keerqin sandlot is researched and the blueprint and countermeasures of the prevention and treatment of land desertification in keerqin sandlot are put forward
本研究主要以地理學、生態學、景觀生態學、區位論和系統論為主要理論支持，通過對科爾沁地區20世紀70年代的mss遙感影像、 20世紀80年代和90年代末tm遙感影像進行基於背景數據庫和專家知識的解譯，獲得科爾沁研究區土地沙漠化的三期矢量數據，利用arc / info軟體強大的空間分析功能對屬性進行處理，並在arcview 、 erdasimagine軟體的支持下進行信息提取與分析，研究了科爾沁沙地土地沙漠化時空變化的規律，提出了科爾沁沙地土地沙漠化防治的構想與對策。This algorithm easily escapes from local optimal solution, have high searching efficiency, simple structure, convenient use. aiming at iteration, optimization and matlab optimization toolbox having low precision and difficulty to choose initial vector on acquiring nonlinear equations ’ solutions, equations ’ solution problem is translated into genetic algorithm optimization problem. nonlinear equations ’ usual genetic
針對迭代法、最優法、 matlab最優化工具箱求解非線性方程組中存在求解精度不高及初始矢量難選等問題，將方程組求解問題轉化為遺傳演算法函數優化問題，建立了非線性方程組通用的遺傳演算法解法，並將其用於汽車滑行試驗數據處理中。The definition of work suggests a third process of vector algebra, namely, scalar multiplication of two vectors.
功的定義用到矢量代數的第三種運算，即兩個矢量的標積。It is shown that the former is more evident than the latter, and after no - modeling uncertainty is eliminated, a more perfect model can be acquired with modern identification method
結果表明：未建模不確定性對辨識精度的影響較大，而待辨識參數矢量維數的影響較小；在克服未建模不確定性后，通過採用現代辨識技術可以獲得系統的較完善模型。Both of the optimized methods for lsp parameters and algebraic codebooks can provide the similar performance as the standard method with less search load
對分裂矢量量化碼本搜索方式的優化和代數碼本搜索方式的優化都在不明顯降低合成語音質量的情況下有效地減少了運算量。The main conclusions are following : ( 1 ) compared with the conventional mlc, the method of iterative prior probability based on the vector map can dispel the prior probability ’ s influence and the overall accuracy and kappa index can be improved ; ( 2 ) to the types with greater area than average area of all types, the producer ’ s accuracy will be improved while user ’ s accuracy be lessened, but to the ones with smaller area, the situation is just the opposite
本研究的主要結論是: （ 1 ）與傳統的最大似然法分類相比，利用地理數據矢量化得到的先驗概率進行迭代，可進一步消除先驗概率對最大似然分類法分類結果的影響，使分類總精度和kappa指數有進一步提高; （ 2 ）分佈面積大於平均值的類別，生產者精度一般會變高，使用者精度會變低;分佈面積小於平均值的類別，生產者精度一般會變低，使用者精度會變高。In the paper, based on the method of low pair replacing with high pair, the problem of cam design was transferred to that of linkage design. by means of rotary unit vectors, the equations of displacement, velocity and acceleration of the replacement mechanisms were developed. and then, the virtual linkage ' s length and direction were deduced
論文基於高副低代原理，將平面凸輪機構設計與再現函數的平面連桿機構設計統一為同一種方法，運用圓向量函數建立代換機構的位移、速度、加速度矢量方程式，求取虛擬連桿桿長和方向，由此展開凸輪理論廓線、實際廓線、曲率半徑和壓力角的求解，並得出用圓形刀具加工凸輪時刀具中心的軌跡方程。This treatise has researched on the construction of structured ldpc codes, including eg, bibd, semi - random - rotation and an approach based on vector - matrix proposed by us and compared random construction and structured construction through theoretical analysis and simulation. we also compared several structured codes
本論文研究了結構化ldpc碼的構造，包括基於歐氏幾何空間的eg （ euclideangeometries ）方法、基於組合代數的bibd （ balancedincompleteblockdesign ）方法、半隨機半結構化的-旋轉構造法，以及我們提出的基於矢量矩陣的結構化構造方法。The author ' s work gives new way, which is beneficial to real time interaction and can efficiently reduce computing time as well as data storage amount. these algorithms can find good use in numerical machining, robotics, form - position tolerance and computer graphics. ( 3 ) degree reduction for nurbs curves and surfaces by applying the theory of the best uniform approximation of chebyshev polynomials and the explicit matrix representation of nurbs curves, this thesis centers on the research of the explicit nearly best approximation of multi - degree reduction of nurbs curves
以上關于等距曲線的幾何逼近與代數逼近的演算法改革了當前國際圖形界只能對基曲線沿法矢方向平移定距離的點作近似逼近的固定模式，創造了利於交互操作，能有效地減少計算量及數據存儲量的新方法，可在數控加工、浙江大學碩士學位論文機器人、形位公差學、計算機圖形學中獲得很好的應用（ 3 ） nurbs曲線曲面降階應用nurbs曲線的顯式矩陣表示及chebyshev多項式逼近理論，以實現nurbs曲線顯式一次性降多階的近似最佳逼近為目標進行了研究Firstly, a simple and practical representing method of the tooth edge tangential vector is applied to replace the traditional differential formula, the simple solving technique of edge contact problem makes the geometric edge contact analysis of the complex curve surface realize. secondly, using numerical searching and mathematical programming method solves the contact directions and loaded contact problem. finally, whole numerical simulation method is provided for loaded tooth contact analysis of high contact ratio spiral bevel gears
首先以一種簡單實用的輪齒邊緣切矢量的數學表示方法取代了經典的微分表達式，大大簡化了幾何邊緣接觸的求解，使復雜曲面的幾何邊緣接觸分析得以實現；其次又採用數值搜索與數學規劃法求解了邊緣接觸的主方向和承載接觸問題，為高重合度弧齒錐齒輪承載嚙合全過程的數值模擬提供了完整的方法。The hydraulic hitch is the common means that the operator be joined with the prime motor in farm machine. the paper made the hitch ? vector equation and found the solutions by newton iteration method through the strong numerical calculation function of computer. so the analytical solution insteaded the graphic method, the design accuracy and efficiency were acceptable
本研究推導了懸掛機構的矢量方程，並藉助于計算機強大的數值計算功能，用牛頓迭代法解決了解矢量方程的問題，從而用解析法取代了圖解法設計此類機構，提高了設計精度和效率。Face recognition based on the algebraic feature face recognition based on the algebraic feature expresses the human faces by vectors of feature too. but the vectors are algebraic feature ones. it is the projection of the human faces in the lower dimension sub - space of eigenface
基於代數特徵的人臉識別方法這類識別方法也是將人臉用特徵矢量表示，但採用的是代數特徵矢量：即人臉圖像在由「特徵臉」張成的降維子空間上的投影。In this paper, first, the study of the distribution of electromagnetic field, energy, power, reflection coefficient and transmission coefficient in waveguide with piecewise different dielectric constants are studied. then, the behavior of propagation of am signal and gauss pulse signal through the waveguide are simulated by magic code ， and the plots of electromagnetic field, energy, ponyting vector and their spectrums at different time and different position are obtained. and, the group velocity and energy velocity of wave packet through barrier are calculated
從90年代開始， emig和martin 、 landauer等人研究了分段填充不同介質的波導中的電磁脈沖的傳播。在本論文中，作者首先推導出分段填充不同介質的波導中的電磁場分佈、能量、傳輸功率以及反射系數和傳輸系數的表達式，然後，採用magic程序模擬了這種波導結構中電磁波的傳播情況，得到了在不同時刻和不同位置處的電磁場分布圖、能量圖、坡印廷矢量圖以及它們的頻譜圖，並由模擬結果計算了波包穿越勢壘的群速和能量速度。Besides, the motor control system based on the digital signal processor ( dsp ) is analyzed. the hardware circuit about the dsp system is designed. the dsp control software is programmed on the field magnetic orientated control and the space vector pulse width modulation ( svpwm ), that establishes the ' basis for implementing the modern control principle
然後，又對基於數字信號處理器（ dsp ）的電機控制系統進行了分析，設計了dsp系統的硬體電路，並編寫和調試了空間磁場定向控制和空間矢量脈寬調制（ svpwm ）的dsp系統的軟體，為直線電機現代控制策略的具體實現奠定了基礎，並提出了對端部效應進行補償的控制方法。In this paper, the backward simulation was summarizd at home andabroad, the characteristics of shell nosing were introduced, the theory and scheme of backward simul - ation of shell nosing was constructed, the determined methods of the boundary conditions were put forward in backward simulation for the processes of shell nosing
論述了推力矢量控制技術是提高空空導彈性能的核心技術，介紹了常用的三類推力矢量裝置，著重討論了燃氣舵式和擾流片式推矢裝置的特點、設計方法、性能及其優缺點.在此基礎上，研究了適用於氣動力/推力矢量復合控制的變結構控制系統及其開關函數的切換條件和飛行控制系統框圖.最後綜述了推力矢量裝置在第四代空空導彈上的應用情況In tensor algebra the vector appears as a speical case of a more general concept, which includes stress and inertia tensors.
在張量代數中，矢量是做為更普遍的概念的一種特殊情況出現的，這種更普遍的概念包括應力張量和應變張量。Matrix and vector template classes are defined based upon object - oriented technology ( oot ). the conventional computation among matrix, vector and number is realized by overriding operators. according to the property of matrix, the scanty reserve way of object data is used, and the computation between matrixes with different reserve way is realized. the template classes is versatile, the program codes can be effectively reused, maintained and extended
基於面向對象技術定義了矩陣和矢量兩種模板類，利用運算符重載實現了矩陣、矢量和數之間的常規運算，對于具有不同特性的矩陣，採用了節省的貯存方式，並實現了不同貯存方式下矩陣相互之間的計算，表明所建立的模板類具有通用性，所開發的代碼可重復利用率高，而且易於維護和擴充。A new all - digital fuzzy direct torque control servo system of pmsm based on dsp ( tms320lf2407a ) is designed and constructed, in which the traditional space voltage vector selector is replaced by an analytic fuzzy control state selector
摘要提出在pmsm直接轉矩控制系統中，採用解析模糊控制狀態選擇器替代傳統的空間電壓矢量選擇器的新型控制方法，設計完成了基於dsp （ tms320lf2407a ）為核心的全數字模糊直接轉矩控制系統。分享友人