thiết kế và phân tích công việc tại công ty

Ngày tải lên: 27/08/2014, 22:39

Ngày tải lên: 07/04/2014, 21:40

Ngày tải lên: 20/06/2014, 14:52

Ngày tải lên: 10/02/2015, 16:26

... TRÚC PHÂN TẦNG VÀ MÔ HÌNH OSI 2.1 Kiến trúc phân tầng Để giảm phức tạp của việc thiết kế và cài đặt mạng, hầu hết các mạng máy tính đều có phân tích, thiết kế theo quan điểm phân tầng (layering). ... cần thiết cho mạng và thuận tiện cho việc thiết kế và cài đặt các phần mềm truyền thông. Mỗi tầng thực hiện một số chức năng xác định và cung cấp một số dịch vụ cho tầng cao hơn. Nguyên tắc phân ... không thể phân tích mạng và xác định các tuyến đờng nhanh nhất đểchuyển gửi dữ liệu. Gi s cú mt Bridge nôí hai mạng Lan A và Lan B thì Bridge làm việc như sau: - Nhận mọi gói tin trên Lan A và Lan...

Ngày tải lên: 24/07/2013, 15:00

Ngày tải lên: 25/07/2013, 07:58

Ngày tải lên: 06/08/2013, 10:11

Ngày tải lên: 07/08/2013, 10:26

... remain to be addressed. Among them, stability analysis, systematic design, and performance analysis, to name a few, are crucial to the validity and applicability of any control design methodology. ... 11, and 13, are designed to be basically independent of each other, to give the reader flexibility in progressing through the materials of this book. Chapters 1᎐3 contain the fundamental materials...

Ngày tải lên: 15/12/2013, 04:16

... performance only. Then an LMI-based stability analysis is carried out to check whether the stability conditions are satisfied. In the case that the stability conditions are not satisfied, the controller ... COMPENSATION 38 Remark 9 The stability conditions presented in this book not only guaran- tee stability of fuzzy models and fuzzy control systems, they also guarantee w stability for related uncertain linear ... that p s n, zts xt, zts xty 1 , , zts xty n q 1. Ž. Ž. Ž. Ž . Ž. Ž . 12 n Then, the model rules can be represented as follows. Model Rule i: Ž. Ž . IF xt is M and иии and xty n q 1isM , i1 in x...

Ngày tải lên: 15/12/2013, 05:15

... solutions X and M . i STABILITY CONDITIONS 51 Ž By applying the stability conditions for the open-loop system Theorems 5 .Ž. Ž. and 6 to 3.5 and 3.6 , we can derive stability conditions for the CFS ... chapters. 3.1 STABILITY CONDITIONS In the 1990’s, the issue of stability of fuzzy control systems has been wx investigated extensively in the framework of nonlinear system stability 1᎐18 . Today, ... stability analysis of fuzzy control in the literature. This section discusses some basic results on the stability of fuzzy control systems. In the following, Theorems 5 and 6 deal with stability...

Ngày tải lên: 15/12/2013, 05:15

... by a fuzzy 1 p observer. Obviously the stability analysis and design of the augmented system for Case A are more straightforward, whereas the stability analysis and design for Case B are complicated ... Ž . Ž.Ž. ÝÝ ij a 2 i s1 i-j Fuzzy Control Systems Design and Analysis: A Linear Matrix Inequality Approach Kazuo Tanaka, Hua O. Wang Copyright ᮊ 2001 John Wiley & Sons, Inc. Ž. Ž . ISBNs: ... the controller and observer design can be carried out separately without compromising the stability of the overall closed-loop system. In this chapter, it is shown that a similar separation principle...

Ngày tải lên: 15/12/2013, 05:15

... uncertainty in the consequent parts. The robust stability for the fuzzy model with premise uncertainty was wx wx first discussed in 6 and 7 . This chapter will focus on the consequent uncertainty. 5.2 ... UNCERTAINTY To address the robustness of fuzzy control systems, a first and necessary step is to introduce a class of fuzzy systems with uncertainty. For this purpose, we introduce uncertainty blocks ... of Takagi-Sugeno fuzzy systems with uncer- tainty. Robust stability conditions for this class of systems are derived by applying the relaxed stability conditions described in Chapter 3. This chapter also...

Ngày tải lên: 15/12/2013, 05:15

... 3.23 and 3.24 hold. The optimal fuzzy controller design in Theorem 25 is feasible if the stability conditions Ž. Ž. 3.23 and 3.24 hold. A design example for optimal fuzzy control will be discussed ... , Ž. 0 3 Y 0000 Y s block-diag . Ž. 0 4 T Ž. Ž. Proof. The main idea here is to transform the inequality J - x 0 Px 0 - ␭ and the conditions of Theorem 24 into LMIs: OPTIMAL FUZZY CONTROL 112 and T A ... Tanaka, T. Taniguchi, and H. O. Wang, ‘‘Robust and Optimal Fuzzy Control: A Linear Matrix Inequality Approach,’’ 1999 International Federation of Automatic Ž. Control IFAC World Congress, Beijing,...

Ngày tải lên: 24/12/2013, 12:17

... x denote the translational position and velocity of the cart 12 with x s x . Let x s ␪ and x s x denote the angular position and ˙˙ 21 3 43 velocity of the rotational proof mass. Then the system ... practical control system designs that call for both robustness and optimality. In the last two chapters the robustness and optimality issues have been addressed separately. This chapter presents a unified ... both the robustness and the optimality. REFERENCES 1. K. Tanaka, T. Taniguchi, and H. O. Wang, ‘‘Robust and Optimal Fuzzy Control: A Linear Matrix Inequality Approach,’’ 1999 International Federation...

Ngày tải lên: 24/12/2013, 12:17

... have 1 TT Ty1 x t ddxt F x t Xxt . Ž. Ž. Ž. Ž. 11 2 ␭ 1 The above inequality is 1 TTy1 x t ddy Xxt F 0. Ž. Ž. 11 2 ž/ ␭ 1 Therefore, we have 1 T X y Xd d X G 0. 11 2 ␭ 1 Ž. Inequality 8.27 can ... . Ž. 00 l xts xty xt,8.2 Ž. Ž. Ž. Ž . 102 ␯ и⌬t xtq 1 s xtq sin xt ,8.3 Ž . Ž. Ž. Ž . Ž. 22 1 L xts xty xt,8.4 Ž. Ž. Ž. Ž . 324 ␯ и⌬t xtq 1 s xtq sin xt,8.5 Ž . Ž. Ž. Ž . Ž. 44 3 L xts xty xt,8.6 Ž. ... output Ž. constraints avoiding jack-knife phenomenon , and stability and decay rate. Hence we have a procedure to determine control gains to satisfy the stability and performance of the control system. EXPERIMENTAL...

Ngày tải lên: 24/12/2013, 12:17

... utilized by the following approximation technique. That is, the equality conditions of Theorem 31 are approximate by the following inequality conditions: T XAy BF y A y BF Ä4 Ž.Ž. 11 ii = A y BF y A y ... otherwise. Then, if there exist the feedback gains F satisfying the stability conditions i described in Chapter 3, the stability of the error system is guaranteed near 5 Ž.5 the equilibrium points, ... with multi-inputs: xtsyax t q ax t q ut, Ž. Ž. Ž. Ž. ˙ 1121 xts cx t y xty xtxtq ut, Ž. Ž. Ž. Ž. Ž. Ž. ˙ 212132 xts xtxty bx t q ut. Ž. Ž. Ž. Ž. Ž. ˙ 312 3 3 As before, we can derive the following...

Ngày tải lên: 24/12/2013, 12:17

... stability conditions: A* T X q X T A* - 0, h lđ / or. Q.E.D. Ž. ik ik i k FUZZY DESCRIPTOR SYSTEMS AND CONTROL 206 10.3 RELAXED STABILITY CONDITIONS This section derives relaxed stability conditions ... Q.E.D. Next, we discuss the stability of the fuzzy descriptor system with the ŽŽ ŽŽ e common B matrix in the case of h z t sđ z t and r s r . By utilizing ik ŽŽ ŽŽ the property of h z t sđ z t , Theorem ... following stability conditions: E* T X s X T E* G 0, G T X q X T G - 0, i s 1,2, ,r , ii ii T G q GGq G ij ji ij ji T X q X F 0, i - j F r s.t. h l h / or, ij ž/ž/ 22 RELAXED STABILITY CONDITIONS 207 From...

Ngày tải lên: 24/12/2013, 12:17

... CONTROL 222 Ž. Ž. Proof. Consider the condition of 11.6 . The condition 11.6 to cancel the Ž.Ž. Ž. nonlinearity of the error system is satisfied if 11.13 , 11.14 , and 11.15 hold for y1 y1 wx wx ␤ и block-diag ... achieve lim e t s 0. As shown ik p l l t ™ϱ Ž.Ž. in Theorem 38, equations 11.7 ᎐ 11.9 are stability conditions of the error system. NONLINEAR MODEL FOLLOWING CONTROL 224 ␤ I ))) 0 ␤ I )) 00I 0 ) ... p l l p l l 1 Ž. Ž. Proof. Consider the condition of 11.6 . The condition 11.6 to cancel the Ž.Ž. nonlinearity of the error system is satisfied if 11.20 and 11.21 hold for y1 y1 wx wx ␤ и block-diag ZZ block-diag...

Ngày tải lên: 24/12/2013, 12:17