Abstract : it provides a kind of new nonlinear integrator and its mathematical model. its frequency responses is disscussed by the harmonics linearization method. its phase lag is found to be only 27. 6, all high order harmonics are very small, and it is very resistant to disturbances. by using it, an two - objective optimum control system is designed. it has very good control performances and will have good prospects in application
文摘:提出一種新型的非線性積分器,給出它的數學模型,並用諧波線性化原理討論它的頻率特性,其幅頻特性起積分作用,而相位滯后僅27 . 6 ,高
次諧波分量小,抗干擾能力強.應用這種積分器設計了一個雙目標
優化的二
次優化系統.模擬結果表明,系統的控制性能好,具有廣泛的應用前景
Basing on the statistical inaming t ' heory ( slt ), the thesis discusses the svm problems in linearly separable case, lineariy non - separable case and non - linear separable case, and induces a convex quadratic programming ( qp ) problem with an equation constrain and non - equation constrains. then one program on solving the op problem is proposed
概述了統計學習理論的主要內容,推導了支持向量機方法在文本線性可分、線性不可分和非線性可分情況下實現分類的數學公式,將學習問題轉化為一個在等式約束和不等式約束下的凸二
次優化問題,總結了求解的過程。
Kalman filter is an optimal filter algorithm in the minimum - mean - square - error sense, meanwhile extended kalman filter is a sub - optimal filter algorithm, which derived from the linearization of nonlinear system using taylor expansion. while the non - linearity of the system is not extreme strong, ekf can achieve approximately optimal filter effect
Kf是最小均方意義下的最
優濾波演算法, ekf則是利用一階泰勒展開將非線性系統線性化而得到的一種
次優濾波演算法,在非線性不是特別嚴重的情況下, ekf有著近似最
優的濾波效果。
This week markets shuddered again as merrill lynch, an investment bank, reported its first loss in six years thanks to a large write - down on assets related to low - quality subprime mortgages in america
這周的股票市場因美林投資銀行宣布,由於投資大量
次優抵押債券導致六年來的首
次虧損,而上下震動。
In these cases, it is necessary to adjust the set points of operation variables and make sure it really works in an optimized state to cope with the changing condition
本文的研究內容,屬于技術層
次優化方面的問題著重於不需要提供改建或擴建設備的一類問題,主要是利用原有設備,充分挖掘潛力,達到增加產量、提高質量、降低成本的目的。
Some 30 of america ' s subprime lenders have closed their doors in the past three months
在過去的三個月中,有30家美國
次優貸款的放款機構已經關門了。
This thesis studies the support vector machine and multi - class classification in the statistical learning theory, and applies the support vector machine into the machine paper currency recognition
本文主要研究了統計學習理論中支持向量機的二
次優化演算法和多值分類,並將支持向量機應用於貨幣的機器識別中。
As an application of succeeding, a numerical example of max - cut is given. 3. several semidefinite relaxation detection strategies of the cdma maximum likelihood multiuser detection are investigated. rounding, coordinate descent, cutting plane and branch and bound based on quadratic programming algorithm are presented to get the suboptirnal solution
本文紿出了基於半定規劃模型尋求多用戶檢測問題
次優解的幾種重要方法,包括隨機擾動法、坐標下降法、半定規劃的割平面法和二
次規劃的分枝定界法等
Trial arrangement of evening service promotional fare until further notice. )
(黃昏班
次優惠試辦至另行通知。
A suboptimal decision fusion scheme that minimize the probability of error at the fusion center is presented, it consists of a minimum - error - probability ( mep ) test at the fusion center and likelihood ration tests at the sensors
提出了一種能將聚變中心誤差概率降至最低的
次優化聚變解決方案,它由聚變中心的最少誤差概率( mep )試驗和傳感器的可能定量試驗組成。
According to the optimization of wagon flow organizing, the author regards xiang - shi line and interrelated technical station as a logistic system, and proofs the optimal layout of this line, at the same time, applies the method cost, the avoiding vice optimizing, the means of comparison and analysis etc. combing area of xiang - shi line, the author analyses the present situation and main problem
本文從車流組織
優化入手,把襄石線及相關的技術站視為一個物流系統,從系統
優化的角度論證襄石線最
優的區段站設置方案,運用了系統管理觀念,包括總成本法、避免
次優化、得失比較分析法等。
Part of this is the flight from risk involving investments based on self prime ( subprime ) home loans
一部分原因是他們想遠離
次優抵押房屋貸款的投資風險。
Credit rating agencies are now recognizing that investments based on subprime home loans are risker ( riskier ) than investors have thought
信用評級機構正意識到次優抵押房屋貸款的投資風險遠大於投資者的想象。