時矩參數 的英文怎麼說

中文拼音 [shíjǔshēnshǔ]
時矩參數 英文
time moment parameter
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 矩 : 名詞1. （畫直角或正方形、矩形用的曲尺） carpenter's square; square2. （法度; 規則） rules; regulations 3. [物理學] moment
  • 參 : 參構詞成分。
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. Aiming at permanent brushless dc motor in mini - bev ( battery electric vehicle ) with torque ripple and violent noise during low speed running, the fuzzy control method is combined with slide mode control method to suppress the influence due to un - modeling parameters, and to ensure the robustness in the process of reaching slide mode plane

    摘要針對微型電動車用永磁無別電動機轉矩脈動大、低速運行時噪聲明顯等主要問題，採用模糊控制和滑模控制相結合的方法，克服了未建模參數的影響，保證了滑模到達階段的魯棒性，同時抑制了轉矩脈動。
  2. In the self - calibration scheme, the thesis emphasizes the accuracy of camera intrinsic and extrinsic parameters. we presents an accurate f method based on corresponding point adjustment. the method adjusts coresponding points according to the fixedness of projective transformed cross ratio, then calculates f matrix accurately through linear and non - linear methods. when computing intrinsic parameter, a matrix, we simplify the step, and stress on the two important parameters of a. the result will be getten through solving kruppa equation based on svd decomposition. in order to compute extrinsic parameters, we use linear method to get initial r and t, then apply non - linear method to accurate them

    提出了基於匹配點調整的f求精方法，先根據攝影交比不見性對手工選擇的匹配點進行調整，再用線性、非線性結合的方法求精f矩陣；在計算內部參數a中，進行了一定的簡化，把重心放在a中重要的兩個參數上，用svd分解法計算kruppa方程；在計算外部參數時，首先用線性法求解r 、 t ，然後再用非線性法迭代求精。
  3. Regarding the serious smoke ejection of 75 diesel engine series, this paper points out that this problem could be solved by modifying certain parameters and employing gyrating regression design. the actual experiment on 375 diesel engine series shows that, after innovation, the maximum of smoke ejection of gyrating moment falls by 24. 2 percent, and then the rating is demarcated, the smoke ejection falls by 53. 8 percent

    本文針對75系列柴油機排煙嚴重的問題，通過改變噴油嘴及相關調整參數，利用多因素正交旋轉回歸設計安排試驗，取得了較好效果.在375型柴油機上的實驗結果表明：進行優化匹配調整后，最大扭矩點煙度下降24 . 2 ，標定工況時煙度下降53 . 8
  4. Second, it presents the project design of an astronauts ’ kinetic measurement system that can precisely measure the forces and moments of key points on motorial person. it presents a principle and flow of the project design of an astronauts ’ kinetic measurement system. and it particularly discusses the demarcate of camera system, the gathering and storage of experiment pictures, pick - up of the symbol data, the parameter calculating method of target movement, and the general design of assistant equipment

    然後給出航天員作用力測量實驗系統的設計方案，該系統能夠克服重力影響，較精確地得出運動時人體各關鍵點產生的力和力矩;給出了航天員運動參數測量實驗系統的原理及流程，並詳細論述了攝像系統標定，實驗圖像的採集與存儲，標志點數據的提取及目標運動參數解算的方法;給出了輔助設備的概要設計。
  5. Aiming at five kinds of targets from geneva lake which are rock, sand, pebble, grit and sullage, the features we extracted based on the cwt time - frequency matrix are singular values, some parameters of histogram and invariant moment

    針對萊蒙湖底的巖石、沙、卵石、砂礫、淤泥等五類目標，文中所提取的特徵主要有時頻矩陣的奇異值、直方圖的有關參數以及不變矩等三類特徵。
  6. We make the following assumption for when 2 is positive definite matrix, different estimators about matrix of regression coefficients and inefficiency of least squares estimate have been discussed in many documents. considered 2 is nonnegative definite matrix, this thesis derives best linear unbiased estimate of parameter matrix b and estimable parameter function kbl under the meaning of matrix nonnegative definite and the property of maximum probability of blue is investigated. next, we discuss some necessary and sufficient conditions of the equality of the lse and blue, then we derive the estimation of the deviation bet - ween the least squares and the best linear unbias estimators of the mean matrix, meanwhile a relative efficiency of lse ofb is proposed and its bound is given

    當0時，眾多文獻討論了回歸系數陣的各種估計及lse的有效性，本文考慮了當0的情形，給出了回歸系數陣b及其可估參數函數kbl的在矩陣非負定意義下的最優估計（ blue ） ，研究了它的一個最大概率性質，並且討論了最小二乘估計成為最佳線性無偏估計的充分必要條件，在此基礎上給出了均值矩陣的最小二乘估計與blue的偏差估計，定義了lse相對于blue的一個相對效率，並給出了它的界。
  7. By constructing the geometrical model of a certain underground single arm type pantograph and applying the translation of pantograph - head balancing bar and the perpendicular displacement of pantograph in the direction of the movement of locomotive while raising pantograph as the objective which must satisfy the demands of locomotive ' s stable current collection, this paper applied the multi - objective optimization based on the genetic algorithms to design the pantograph mechanism

    摘要在建立某地鐵單臂受電弓簡化幾何模型的基礎上，根據列車平穩受流對受電弓提出的各項要求，以受電弓升弓時機車前進方向上的縱向偏移量和弓頭平衡桿的平動為目標，以受電弓正常升弓所需升弓轉矩等為約束，運用基於遺傳演算法的多目標優化技術，對該型受電弓機構進行了優化，得到了使受電弓運動性能達到最優的幾何參數。
  8. When the torque was being increased, this equipment would quickly measure the data of torque, making electromagnetic clutch opened and feed stopped, so that the driller and drilling bar would be protected

    當扭矩增大時，可以快速檢測扭矩參數，並控制離合器迅速脫開，停止進給，保護鉆頭鉆桿。
  9. Design method of the electromechanical actuator controller based on the robust mixed h2 / h * control theory is studied, taking advantage of the priority of the linear matrix inequation in solving the problems of the multiobject control, the robust mixed h2 / h * control problem of the electromechanical actuator under the condition of parameter perturbation and external disturbance can be transformed to the solving of the linear matrix inequation

    研究了基於魯棒h _ 2 h _混合控制理論的電動舵機的控制器設計方法，利用線性矩陣不等式在多目標綜合控制問題求解方面的優勢，將存在參數攝動及外部擾動時的電動舵機的魯棒h _ 2 h _混合控制問題轉化為線性矩陣不等式問西北工業大學博士學位論文題並進行求解。
  10. By this means, user can recover the model with arbitrary geometry and topology. during the interaction, the reconstructed results can be computed and displayed instantly because we use an optimization - tree based symbolic and numeric hybrid optimization - solving approach

    採用這種方法，系統在接受使用者的交互之後，可以實時地求解幾何參數與照相機投影矩陣，並即時地在一個三維窗口中顯示重建結果，做到真正的所見即所得。
  11. The problems of robust stability for a class of lurie direct or indirect systems with time - delay and norm - bounded uncertainties are discussed using delay dependent method. method of linear matrix inequality is adopted to resolve the problems. comparing with the other sufficient conditions, the maximum delay obtained in this paper is less conservative

    2 .針對具有范數有界不確定參數的lur記時滯系統，分別給出了lurie直接型系統時滯相關的魯棒絕對穩定性條件和穩定化控制器以及lurie間接型系統時滯相關的魯棒絕對穩定性條件，結論均採用線性矩陣不等式的形式給出，通過和最近的其他充分性方法比較最大的時滯界，表明本文方法大大減少了保守性。
  12. For a general linear model ( input matrix is deterministic ), under a certain conditions on variance matrix invertibility, the two estimates can be identical provided that they have the same priori information on the parameter under estimation. even if the above information is unknown only for the optimally weighted ls estimate, the sufficient condition and necessary condition, under which the two estimates are identical, is derived. more significantly, we know how to design input of the linear system to make the performance of the optimally weighted ls estimation identical to that of the linear minimum variance estimation in case of being lack of prior information

    在一般線性模型（即輸入矩陣為確定性）下，當兩種估計都利用有關被估參數的先驗信息時，二者在方差陣可逆的一定條件下可達到一致；當最優加權最小二乘估計不利用此先驗信息時，存在二者一致的充分條件和必要條件，進而找到一種設計輸入矩陣的方法，使得在先驗信息缺乏的條件下，仍可利用最優加權最小二乘估計達到與線性最小方差估計一樣優越的估計性能。
  13. Introduced working state real time monitoring and testing, fault diagnosis system and its key instrument, including the working principle of torsion, axial force, rotary speed as a whole sensor, the main parameter index of oil well using progressing cavity pump

    介紹了螺桿泵採油系統工況實時監測與故障診斷系統及其核心儀器：扭矩、軸向力、轉速一體化傳感器工作原理、主要參數指標。
  14. Abstract : introduced working state real time monitoring and testing, fault diagnosis system and its key instrument, including the working principle of torsion, axial force, rotary speed as a whole sensor, the main parameter index of oil well using progressing cavity pump

    文摘:介紹了螺桿泵採油系統工況實時監測與故障診斷系統及其核心儀器：扭矩、軸向力、轉速一體化傳感器工作原理、主要參數指標。
  15. The diffraction efficiency changing with grating parameters, especially for the situation that gaussian beams diffracted by finite grating, is numerically studied. 3

    對單色平面波和有限尺寸高斯光束入射矩形光柵時的衍射效率與光柵柵距、槽深、開口比和入射角等參數的關系進行了模擬計算。
  16. When the dimensionless governing parameters exceed some critical value, the bifurcation phenomena in the rotation pipe with rectangular and elliptical will appear and the flow structure becomes more complicated

    對于矩形截面和橢圓截面管道，當控制參數較大時，流動會出現分叉現象。
  17. A precision force banacing accelerometer for ineration navigation application is developed. the resolution, low - sensitivity threshold and high thermal stability are considered as design parameters. in order to guarantee a low - sensitivity threshold while maintaining robustness against shock, push - pull type long flexures are used in this paper. to improve thermal stability, this paper discusses the use of electromagnets as a magnetic fied source. the silicon pendulum assembly and modified inducance type pick - up is also developed to reduce assembling procedure. the measure range of accelerometer is 0 - 70g

    加速度計的解析度、靈敏度閾值和高的熱穩定性是設計時主要考慮的參數。本論文中使用推?挽式長撓性結構來保證低靈敏度閾值，同時保證抗振魯棒性。為了提高熱穩定性，本文中討論了利用永久磁鐵作為磁場源；微加工技術被引入擺組件的結構設計和利用力矩線圈作為激勵線圈來簡化電感式的檢測裝置。
  18. Source excitation and parameter extraction for time - domain simulation of rectangular waveguides

    矩形波導時域模擬中的激勵源設置和參數提取
  19. Abstract : this paper considers the decentralized stabilization problem via local state feedback control laws for a class of large - scale linear discrete - time systems with delay interconnections. a sufficient condition for decentralized stabilizability is derived and is expressed as a system of linear matrix inequalities. furthermore, the problem of designing a decentralized state feedback control law with smaller feedback gain parameters is formulated as a convex optimization problem, and latter can be solved by using existing efficient convex optimization techniques. the obtained controller enables the closed - loop systems to be not only stable, but also of any prescribed stability degree

    文摘:用一組線性矩陣不等式給出一類線性離散時滯大系統分散能鎮定的一個充分條件，進而，通過建立和求解一個凸優化問題，提出了具有較小反饋增益參數的分散穩定化狀態反饋控制律的設計方法.所得到的控制器不僅使得閉環系統是穩定的，而且還可以使得閉環系統狀態具有給定的衰減度
  20. Then, robust fault detection and isolation problems for time - delay linear parameter - varying systems are investigated in this thesis. the residual generators are created by parameter - dependent filters, i. e. the designed filters are time - varying whose matrices parameters are known functions of time - varying parameters

    其次，本論文研究了時滯lpv系統的魯棒故障檢測與分離問題，利用參數依賴濾波器構造殘差產生系統，即所設計的故障檢測濾波器也是時變系統，其參數矩陣是時變參數的確定函數。
分享友人
分享到 Line

分享到臉書