performance constraint 中文意思是什麼

1 ) the principles of various rotary - type transplanting mechanisms of high - speed rice transplanter had been studied, and the subjects for further research - - studying their dynamics characteristics to improve their dynamics performance and further to enhance the efficiency were put forward. an innovative idea of two - stage - optimization for dynamics analysis was presented in the paper. the creativity of the idea was that the kinematics optimization ( first stage optimization ) results were the constraint for dynamics optimization ( the second stage optimization )

本文主要的研究內容和結果如下： 1 ）研究國內外各種類型的旋轉式高速水稻插秧機分插機構的工作原理，指出尚待研究的問題? ?研究其動力學特性，以改善動力學特性，進一步提高插次；為此提出了動力學兩級優化的創新性思路? ?以運動學優化（ 1級優化）得到的機構參數范圍作為動力學優化（ 2級優化）的約束條件，最終得到的最佳參數不僅能滿足運動學的要求，又具有最佳的動力學特性。

The performance of data drive technique proposed in this thesis is compared with traditional pipe - line technique, and is proved to be better. the constraint of buffer design is given in this thesis

在此基礎上，本文進一步提出了一種數據驅動的控制技術，並與傳統的流水線控制技術進行了性能比較，證明了數據驅動控制技術比流水線控制技術的性能更優越。

To avoid high frequency oscillation in the course of autopilot design, damping coefficient value was treated as a constraint, the rise time was taken as objective, and the other performance criteria were taken as constraints, then the robustness design problem was solved by multi - objective optimization method

摘要在導彈控制系統設計過程中，考慮了自動駕駛儀的高頻振蕩問題，將其轉化為系統的一個約束條件，同時把上升時間轉化為目標函數，其他設計指標視為約束條件，採用有約束多目標優化的方法解決了系統魯棒性設計問題。

Simulations over coding channel show that the more correct bits we know the better the performance is. the key point of constraint viterbi algorithm is how to provide the reliable constraint condition and make full use of it

通過在編碼通道模型上的模擬表明，已知正確的約束位越多，分佈的越密，則提高的性能越明顯。

Web services composition based on constraint agent for service performance

的面向服務性能的服務復合方案

A full mathematical model of optimal flow pattern design withengineering constraints was put forward, based on modern optimal control theory. an optimal flow pattern design was presented for optimizing meridional channel of axial flow turbine. according to integral optimization of turbine stages, a full physical model and mathematical expression were put forward for proposition of optimal flow pattern, including all performance parameters in turbine stages. this problem was further recast into a typical form control to maximize specific performance index such as work or efficiency of stage with given initial state, fixed terminal condition and constraints for part of state terminal variables. the program was also worked out according penalty function method and conjugate gradient method. the optimal distribution of c1ur1 ( r1 ) was obtained according to constraint conditions and maximized objective function

把近代最優控制論方法引入軸流透平葉片的設計，在優化的軸流透平子午通道內，建立包括透平級內所有性能參量的最優流型命題的完整的物理模型及其數學表達式，並歸化為一個在給定初始狀態、自變量終端固定、部分狀態變量終端受有約束的條件下，使級的某一性能指標（如級的功率）達到最優的最優控制問題，應用「代價函數法」及「共軛梯度法」編制計算程序，計算得到符合給定約束條件、並使目標函數取極值的最優環量分佈，結果是令人滿意的。

This paper first analyzes performance criteria of a control system, and proposes a controller design method that incorporates disturbance attenuation and robust performance. the robust pid controller design amounts to an optimization problem with a non - convex constraint. genetic algorithm is used to solve the problem due to its global search ability, simulation examples show that the method is effective and have general sense

本文從分析控制系統的性能指標入手，從抗干擾性能和魯棒性能兩方面綜合考慮控制器的設計，得到一種魯棒pid控制器的設計思路，把pid控制器的設計問題轉化為求解一個帶魯棒性能約束的絕對誤差積分指標（ iae ）優化問題。

The innovative ideas in this paper are that robust h control theory based on conventional ip controller is applied to the high - precision feed of a single axis, and the controlled plant is composed of ip velocity loop and two - order model of linear motor. a constraint condition on y in the problem of h2 / h is deduced from the frequency criterion of riccati equation, which makes the repeated computation on r simple. considering the two - loops control problem, the h state feedback controller based on ip controller as the inner controller is applied to satisfy the velocity performance of the system, and a pi controller, the external controller, is used to satisfy the position performance

本文的創新之處在於將傳統的ip速度控制器和直線電動機的二階模型作為一個廣義的被控對象，利用魯棒h _控制理論設計了一個h _狀態反饋控制器，以此解決高精度進給的控制問題，並在此基礎上研究了h _ 2 h _混合控制問題，結合h _代數riccati方程正定鎮定解存在的頻率判據，推出了一個控制器存在的約束條件，使以往須反復試探的，有了更進一步的約束范圍，簡化了計算。

Combined with the data - selected schemes proposed, the computational complexity of this method can be lowered. the performance of the presented rls method is analyzed by simulations, and it is shown that this method is interesting for application. 4 time - selective channel signal model based on multipath - doppler diversity representation is given in multi - path fast fading channel, and rls space - time receiver algorithm based on time - varied constraint condition is presented and the computational complexity of this method is analyzed

4 、針對多徑快衰落通道下的ds - cdma系統，給出了基於多徑-多譜勒觀點描述的1百安電弓卜科東兔j憶學協士學位論文時間選擇性通道的信號模型，提出了基於變約束條件下的遞歸最小二乘空時接收機演算法並分析演算法的運算量，最後通過模擬分析了所提出的方法的性能。

In this paper ， an optimal search strategy by dividing the whole surveillance area into regions is presented so that the optimal search can be adaptively implemented in phased array radar. firstly ， the inherent relationship among average discovering time ， radar resources consumption ， search frame period and target distribution density is studied. secondly ， parameters for the region search are optimized to achieve the optimal search performance inside regions. then ， the optimal search frame period for each region is derived to minimize the average discovering time of targets ， where the constraint of radar time resource and the importance of each region are taken into account. finally ， the adaptability of this search strategy is discussed. only if the optimal parameters for each region are utilized and the beams are scheduled according to the optimal frame period under the radar time constraint ， the optimal distribution and the optimal scanning sequence of beams can be implemented adaptively. thus ， optimal search is adaptively implemented in the whole surveillance area

本文提出一種分區搜索演算法，實現了相控陣雷達的自適應最優搜索.首先，研究了各區域平均發現一個目標消耗的雷達資源和目標被發現的平均時間同搜索幀周期以及目標強度的關系；然後，研究了在各區域採用兩步搜索演算法的最優參數設計，實現了局部區域的最優搜索；其次，在雷達時間資源有限和區域重要性加權的約束條件下，導出了使目標被發現的平均時間最小的區域最優幀周期；最後，討論了分區搜索演算法的自適應性.只要採用各區域的最優參數，按最優幀周期調度雷達波束，就可以自適應地實現使目標被發現的平均時間最短的波束的最優分佈和掃描順序，即自適應最優搜索

The main factors impact the balance of the incentive and constraint mechanism as follows : managerial option mechanism, performance evaluation mechanism, inner constraint mechanism, out environmental constraint mechanism, incentive and constraint mechanism in compensation, ect

影響經營者激勵、約束均衡的主要因素有：經營者選擇機制；績效評價機制；內部約束機制；外部環境約束機制；報酬激勵與約束成本等。

In order to make the mechanisms possess high efficiency, high stability, and low cost, a thorough study for constraints and overconstraints in the linkage mechanisms, self - adjusting mechanism and self - adjusting structures of the mechanisms, the degree of the influences of errors in different kinematic pairs on performance of the mechanisms, and the theory and method of designing for the mechanisms without overconsstaint was carried out in this dissertation. on the basis of the generalized constraints and on principle of designing and controlling the constraints advantageously, the conceptions such as basic constraint, statically constraint, and over - statically constraint were put forward for the first time

論文的主要研究成果及創新點有以下幾部分： （ 1 ）基於廣義約束的概念，從有利於設計和控制約束的原則，對機構及機械繫統中的常見約束進行了分類，首次提出了「基本約束」 、 「靜定約束」及「超靜定約束」的概念和分類定義；並首次將虛約束、重復約束、消極約束、多餘約束、過約束等概念，從本質上統一起來進行定義，將其都統一稱為「過約束」 。

Then, this paper empirically tested the validation and predictive accuracy of different var risk management model in the domestic financial market. finally, with the analysis of modem financial risk management development trend and the current domestic financial risk management situation, this paper made a prospect for the application of this model in the construction of domestic financial risk management system. through the analysis, the main conclusions are as follows : ( l ) the traditional mean - variance model is the special example of the portfolio selection based on the var risk management model for the case that the returns of the portfolio are assumed to be normally distributed ; compared with the mean - variance model, the var risk management model is more comprehensive and accurate in the measurement of the portfolio risk, so based on the var model, the investors can allocate the asset more effectively. ( 2 ) the var risk management model can provide the timely and comprehensive risk information for the top risk manager, so it is very helpful to the improvement of total risk management efficiency. ( 3 ) based on the var model, the raroc performance valuation approach can reflect the real performance of the portfolio manager and provide the coherent standard for the allocation of risk limitation and the construction of the incentive compatibility constraint mechanism in the financial instiutions

通過研究分析，本文主要得出如下結論： （ 1 ）傳統的markowitz均值? ?方差模型僅僅是在資產組合收益率正態分佈假設條件下基於var風險管理模型進行資產組合選擇的特例，與均值? ?方差模型中的方差風險度量方法相比， var風險管理模型能夠更全面、更貼切地衡量資產組合的風險，且基於此模型能夠更有效地進行資產配置決策； （ 2 ） var風險管理模型能夠滿足更高層次風險管理者對風險信息的需求，有助於整體風險管理效率的提高； （ 3 ）基於var風險管理模型的raroc績效評價能夠反映資產組合管理人的真實業績，從而為金融機構風險限額的分配和激勵約束機制的制定提供統一的標準； （ 4 ）國內證券市場資產組合收益率服從正態分佈的假設明顯不成立，實證檢驗表明基於資產組合收益率正態分佈假設條件下的方差? ?協方差模型對國內資產組合風險的預測存在較大的偏差，由於文中證明在收益率正態分佈假設條件下基於方差? ?協方差模型進行資產組合選擇的結果等價于markowitz的均值? ?方差模型，因此，均值? ?方差模型對國內資產組合風險的預測同樣會存在著較大的偏差，而半參數var風險管理模型則能夠取得較好的預測衡量效果； （ 5 ） var風險管理模型符合未來金融風險管理的發展趨勢，基於var風險管理模型建立內容提要風險限額內控體系、風險信息披露體系和業績評價體系，並進行金融監管，將有助於國內金融機構內部風險管理方法和外部監管技術跟上國際金融風險管理的發展潮流。

This text has a fundamental estimation towards our operating status of macro - economy and draws a conclusion of deficient domestic demand through analysis of the performance achieved by the policies and measures of extending domestic demand adopted by our government since 1998. and then, it analyses the constraint factors of further extending domestic demand and puts forward countermeasures and proposals of further extending domestic demand. the influence upon our economical operation, agriculture and employment after entrance of wto has been analyzed in the text

本文從分析1998年以來我國政府所採取的擴大內需的政策措施的績效入手，對我國的宏觀經濟運行狀況有個基本的判斷，得出我國目前仍存在著內需不足的結論，然後分析了我國擴大內需的制約因素，提出進一步擴大內需的對策及建議，並分析了入世后對我國經濟運行、農業、就業、居民消費和居民收入等方面所帶來的影響。

And then, adopting the same model, cyclic moment estimation statistic of different orders are constructed respectively, large sample variance expressions of the estimator through theoretic analysis are derived, as well as the constraint relation of estimator performance and noise statistical characteristic. the curve of estimation performance is obtained through monte carlo simulation test, which proves the related conclusion derived

然後，論文同樣以加性和乘性噪聲聯合干擾下的復諧波信號和復線性調頻信號為觀測模型，分別構造了基於不同階次的循環矩估計量，從理論上推導出了估計量的大樣本方差表達式，分析了估計量性能與噪聲統計特性的約束關系，通過monte - carlo模擬試驗得到了估計性能的曲線，驗證了推導的有關結論。

Investigation into the origin of accounting standard tells us that accounting standard is in essence an economic mechanism. we can work out a feasible solution to the fundamental problem of accounting from the mechanism - designing perspective using decision usefulness as objective and performance measurement as incentive compatibility constraint

對會計準則產生過程的考察可以看出會計準則實質上是作為一種經濟機制而存在的，以決策有用為機制設計目標，業績衡量為激勵相容約束的機制設計觀來制定會計準則，可以求得對會計基本問題的一個可行解。

On the other hand, we give the condition of correctly solving range ambiguity and performance calculating formula of for stagger frequency difference ; condition of constraint for deciding stagger parameter value ; range " s analysis result for targets with multiple scattering centers or low altitude. this part includes chapter 2, 3, 4, 5

另外，我們還給出了參差比相測距正確解模糊的條件以及參差測距下的性能公式；提出了決定參差參數取值的約束條件；給出了多散射中心目標和低空目標的多頻連續波測距性能的結論。

The rbf network has a better performance, and better forecasting accuracy. then mathematical model of substation voltage / var control is constructed, the squares minimization of voltage differences as target, also considering requirement of voltage and power balance, taking it into consideration that the magnitude constraint of transformer ratio and compensating capacitor, also that constraint of operation times of one day transformer tap and capacitor switch

因此提高了學習性能，具有較好的預測精度。然後，建立變電站電壓無功控制的數學模型，考慮電壓的調壓要求和無功功率平衡，計及變壓器變比和並聯補償電容的上下限約束，變壓器分接頭和電容器允許的日調節次數的限制，以電壓偏差的平方和最小為目標函數。

Computing result shows that : coevolutionary mdo algorithms are effective on this problem ; distributed coevolutionary mdo algorithm is better than cooperate coevolutionary mdo algorithm ; asynchronous parallel version of distributed coevolutionary mdo algorithm speeds up the optimization procedure greatly while maintains good convergence performance ; multiobjective distributed coevolutionary mdo algorithm approximates the whole pareto optimal front well in only one single run, saves much computing cost than constraint method to obtain pareto optimal set, and greatly shortens search time by distributed asyn

計算結果表明：協同進化mdo演算法求解該問題是有效的，其中分散式協同進化mdo演算法優于合作協同進化mdo演算法；異步并行的分散式協同進化mdo演算法在保證收斂性能的同時大大加快了優化進程；多目標的分散式協同進化mdo演算法僅一次運行就很好的逼近了問題的整個pareto最優前沿，比用約束法求解pareto最優集節省了大量計算開銷，而且通過網路多臺微機的分散式并行執行大大縮短了搜索時間。

Focusing on the flaw that the complexity is incompatible with performance in the existing code - rate allocation methods of the unequal loss protection system with transmission rate constraint, a new code - rate allocation method based on estimation is proposed

摘要針對現有傳輸碼率約束抗丟包不等保護系統的碼率分配方法不能兼顧復雜度和性能的缺陷，提出了一種基於估計的碼率分配新方法。