... Structure Systems, Sliding Mode and Nonlinear Control Lecture Notes in Control and Information Sciences, vol 274 Springer, New York (1999) Misawa, E.A.: Discrete time sliding mode control: The linear ... References Utkin, V.I.: Sliding Modes in Control Optimization Springer, Berlin (1992) Edwards, C., Spurgeon, S.: Sliding Mode Control: Theory and Applications Taylor and Francis, London (1998) ... order sliding modes, differentiation and output-feedback control International Journal of Control 76, 924–941 (2003) 14 Wang, B., Yu, X., Chen, G.: Discretization behaviors of sliding mode control...
Ngày tải lên: 01/07/2015, 10:07
... Chapters and 6, and the first part of Chapter To really master a subject, a continuous interplay between skills and knowledge must take place By studying and reviewing many solved problems and seeing ... SIGNALS AND SYSTEMS (4 Fig 1-25 [CHAP SIGNALS AND SYSTEMS 1.8 Show that (a) If x(t) and x [ n ] are even, then (1.75a) ( I 75b) ( b ) If x(t) and x[n] are odd, then x(0) = and ~ ( rdr = ) and x[O] ... systems and explains the unit impulse response of the system and convolution operation Chapters and explore the transform techniques for the analysis of LTI systems The Laplace transform and its...
Ngày tải lên: 15/05/2014, 10:55
Báo cáo hóa học: " Research Article Bit Error Rate Approximation of MIMO-OFDM Systems with Carrier Frequency Offset and Channel Estimation Errors" ppt
... independent and identically distributed (i.i.d.) RV This paper is organized as follows The MIMO-OFDM system model is described in Section 2, and the SINR degradation due to the frequency offset and channel ... offset and channel estimation errors, is derived in Section The numerical results are given in Section 5, and the conclusions are presented in Section Notation (·)T and (·)H are transpose and complex ... identity matrix, and ON is the N × N all-zero matrix 0N is the N × all-zero vector a[i] is the ith entry of vector a, and [B]mn is the mnth entry of matrix B E{x} and Var{x} are the mean and variance...
Ngày tải lên: 21/06/2014, 11:20
Báo cáo sinh học: " Research Article Robust Stabilization of Fractional-Order Systems with Interval Uncertainties via Fractional-Order Controllers" potx
... 5.1 Based on the control law t will be robust stable if αcontroller < where αcontroller is order of controller and φ∗ 2φ∗ , π 5.2 inf{φ1 , , φN } Proof Due to applying the control law u as ... controller, and FO plant with FO controller In this paper, we focus on using FO controllers for unstable FO systems and we propose a simple fractional-order controller to control of fractional-order ... closed-loop control systems, there are four situations They are IO integer order plant with IO controller, IO plant with FO fractional order controller, FO plant with IO controller, and FO plant...
Ngày tải lên: 21/06/2014, 16:20
báo cáo hóa học:" Research Article Existence of Periodic Solutions of Linear Hamiltonian Systems with Sublinear Perturbation" ppt
... 2π-periodic solution Theorem 1.2 Assume that the linear problem 1.14 has only the trivial 2π-periodic solution u and the condition G2 holds Then the Hamiltonian system 1.5 has at least one 2π-periodic solution ... Dimensional Morse Theory and Multiple Solution Problem, Birkhauser, Berlin, ¨ Germany, 1991 18 P H Rabinowitz, “On subharmonic solutions of Hamiltonian systems,” Communications on Pure and Applied Mathematics, ... E | Lu 0} It is easily seen that u ∈ N L if and only if u ∈ E is a 2π-periodic solution of the following linear problem: u ˙ JA t u 1.14 It is a standard result that the self-adjoint operator...
Ngày tải lên: 21/06/2014, 18:20
Báo cáo hóa học: " Research Article Analysis of Coded FHSS Systems with Multiple Access Interference over Generalized Fading Channels" ppt
... users The frequency band is divided into Q bands and users transmit their data by hopping randomly from one band to another When more than one user transmit over the same band simultaneously, ... [0, 2π) and a j is the channel amplitude If a line-of-site (LOS) exists between the transmitter and the receiver, the channel amplitude is modeled as a Rician random variable [10] In this model, ... partial-band interference,” IEEE Transactions on Communications, vol 33, no 8, pp 767–774, 1985 [7] G L Stuber, J W Mark, and I F Blake, “Diversity and coding for FH/MFSK systems with fading and jamming—part...
Ngày tải lên: 21/06/2014, 23:20
Báo cáo hóa học: " Research Article Absolute Stability of Discrete-Time Systems with Delay" pdf
... Mathematics and Computation, vol 60, no 2-3, pp 285–298, 1994 14 R Qu and R P Agarwal, “Improved error bounds for freezing solutions of linear boundary value problems,” Applied Mathematics and Computation, ... the solution of 2.9 with the initial conditions 0, for − m ≤ k ≤ − 1, v k for k 2.12 In order to state and prove our main results, we need some suitable lemmas and theorems Lemma 2.2 see The solution ... 3.1 Under conditions 2.4 and 2.5 , let the inequality qψ < 3.5 holds Then for any solution x k of problem 2.13 – 2.3 , the estimate ≤ C0 ϕ x k is valid, where C0 const., and ϕ −1 ψ − qψ f ∞, 3.6...
Ngày tải lên: 22/06/2014, 06:20
Báo cáo hóa học: " Research Article Reverse Link Outage Probabilities of Multicarrier CDMA Systems with Beamforming in the Presence of Carrier Frequency Offset" doc
... Helsinki, Finland, June 2001 [22] M Abramowitz and I A Stegun, Handbook of Mathematical Functions, Dover, New York, NY, USA, 1972 [23] I S Gradshteyn and I M Ryzhik, Table of Integrals, Series and Products, ... beamforming model with arrival angle θ = 30◦ where E{G(θ, ψ)} and E{G2 (θ, ψ)} are the first and second moments of the antenna gain, respectively, averaged with respect to uniformly distributed random ... sinc2 (ε) where Gt (θ k − π, θ k − π) and Gr (θ k , ψ) are the transmit and receive beamforming gain, respectively; θ k − π and θ k are the transmit angle and arrival angle from the kth user to...
Ngày tải lên: 22/06/2014, 19:20
Báo cáo hóa học: "REPRESENTATION OF SOLUTIONS OF LINEAR DISCRETE SYSTEMS WITH CONSTANT COEFFICIENTS AND PURE DELAY" ppt
... formulas for the solution of the homogeneous and nonhomogeneous problems (1.1), (1.2) 3.1 Representation of the solution of homogeneous initial problem Consider at first homogeneous problem (1.1), ... matrix relative to discrete delayed equations and give an J Dibl´k and D Y Khusainov ı analogue of formula (1.6) for homogeneous and nonhomogeneous problems (1.1), (1.2) with pure delay Discrete ... Then the solution of the problem (3.1), (3.2) can be expressed as x(k) = eBk ϕ(−m) + m B(k−m− j) em Δϕ( j − 1), (3.3) j =−m+1 where k ∈ Z∞m − Proof We are going to find the solution of the problem...
Ngày tải lên: 22/06/2014, 22:20
THE FIRST EIGENVALUE OF p-LAPLACIAN SYSTEMS WITH NONLINEAR BOUNDARY CONDITIONS D. A. KANDILAKIS, M. pptx
... regularity of solutions for nonlinear a elliptic systems in RN , Atti Sem Mat Fis Univ Modena 50 (2002), no 1, 161–172 P Dr´ bek and J Hern´ ndez, Existence and uniqueness of positive solutions for ... a.e in Ω, (2.4) (iii) m{x ∈ Ω : b(x) > 0} > and ≤ b(x) ≤ B1 ws (x) a.e in Ω, (2.5) where B1 > and s ∈ (max{ p, q},N) (H3) c1 (·) and c2 (·) are positive and continuous functions defined on RN with ... corresponding to λ1 If uv ≥ a.e., then the right-hand sides of (1.1) and (1.2) are equal, so (u,v) is an eigenfunction of (1.1), and we are done On the other hand we cannot have uv < on a set of positive...
Ngày tải lên: 23/06/2014, 00:20
Báo cáo y học: "Relaxin''''s induction of metalloproteinases is associated with the loss of collagen and glycosaminoglycans in synovial joint" ppsx
... content and proteinase activity in discs from different rabbits, three disc hemisections from each rabbit were treated with hormones and one served as control MMP levels and the GAG and collagen ... in the presence of the control analog and only by relaxin (40% of control and β-estradiol alone; P < 0.0001, Fisher's test) or β-estradiol plus relaxin (60% versus control and β-estradiol alone; ... relaxin-induced MMPs to the loss of collagen and GAGs, 24 hemisections from six rabbits were cultured with the MMP inhibitor GM6001 or its control analog hours before and during the hormone treatments The...
Ngày tải lên: 09/08/2014, 06:22
Life cycle analysis of electricity generation systems with implications on climate change policy
... years, international standards, ISO14040 [12] on principles and framework, and ISO14044 [13] on requirements and guidelines were established. These standards were complemented by operational guides, such as Guinée [14], and ... capacity involves a number of sophisticated control and management systems, including pumps, control valves, and other mechanical and electrical components. As such, there is insufficient representation on the elementary input‐output ... in Southeast Asia and contributed about 11% GDP in 2006. The increase in extreme weather events (such as droughts, floods, and tropical cyclones, and warming), and forest fires due to climate change seriously threaten the export ...
Ngày tải lên: 09/09/2015, 11:18
Dynamics and control of distributed parameter systems with recycles
... Kreyszig (1979) for analytical solutions, Numerical Analysis text books like Gerald and Wheatley (1989), Rice and Do (1995) and Ray (2000) for the numerical solutions for such problems 1.2 Distributed ... nature of the DPS and design the controller The control performance with these controllers suffers from strong interactions and apparent time delays due to the underlying diffusion and convection ... feedback controller designed based on forward path model (GF) only Case 2: Only feedback control The feedback controller is designed using the overall process model Case 3: Only feedback control...
Ngày tải lên: 04/10/2015, 17:06
convergence of solutions of reation diffusion systems with time delays
... steady-state problem of (3.1) possesses the trivial solution (0,0) and the semitrivial solutions (a1 =b1 ; 0) and (0; a2 =c2 ) If a2 =a1 ¡c2 =c1 then it has also the positive constant steady-state solution ... two Volterra–Lotka models in ecology for studying the global stability and instability of the various constant steady-state solutions The stability conditions for these model problems are given ... Proof It is known that if problem (1.1) has a pair of coupled upper and lower solutions ˜ uˆ and hypothesis (H) holds in the sector u; ˆ u˜ then there exists a unique solution u; ˆ u˜ , where...
Ngày tải lên: 29/10/2015, 14:19
Đề tài " The number of extensions of a number field with fixed degree and bounded discriminant " docx
... when n = 2; it has been proved for n = by Davenport and Heilbronn [7] in case K = Q, and by Datskovsky and Wright in general [6]; and for n = 4, and K = Q by Bhargava [3], [2] A weaker version of ... “square” box (all sides equal) around the origin — but indeed they apply, with uniform implicit constant, to a square box centered at any point Now we tile the skew box (2.7) by square boxes of ... unless either |H| = 2, or |Q| = |H| and |H| = 3, In case |Q| = 2, |H| = 4, the group G is nilpotent and Proposition 2.8 is proved by Kl¨ners and Malle u On the other hand, NK (X 1/|H| , Q)X p/(p−1)|G|...
Ngày tải lên: 06/03/2014, 08:21
schaum's outline of feedback and control systems
... buying and selling equities, fit the model of the Law of Supply and Demand described in Problem 1.12? How? 131 Does a purely socialistic economic system fit the model of the Law of Supply and Demand ... following problems describe servomechanisms:Examples 1.3 and 1.5 in Problem 2.6, and Problems 2.7, 2.8, 2.17, and 2.21 38 CONTROL SYSTEMS TERMINOLOGY [CHAP 22 .6 2.30 The systems of Examples 1.2 and ... a certain number of items, and the Demander to demand a number of items The difference between the supply and the demand is the control action for this system If the control action is nonzero,...
Ngày tải lên: 01/04/2014, 11:13
Báo cáo hóa học: " Boundedness and Lagrange stability of fractional order perturbed system related to unperturbed systems with initial time difference in Caputo’s sense" ppt
... sufficient conditions to the existence and uniqueness of solutions through (t0, x0) and (τ0, y0) If f Î C[[t0, t0 + T] × ℝn,ℝn] and x(t) Î Cq[[t0, T], ℝ] is the solution of c Dq x = f (t, x), x(t0 ... t0 + T (2:2:6) t0 and that every solution of (2.2.6) is also a solution of (2.2.5), for detail please see [7] 2.3 ITD boundedness and Lagrange stability, fundamental Lemmata and Lyapunov-like ... derivatives and integrals leads to a formulation of certain real-world problems in different areas [1,6] Fractional derivatives and integrals are also useful in pure mathematics and in applications...
Ngày tải lên: 20/06/2014, 22:20
Principles of Digital Communication Systems and Computer Networks
... hợp modem dòng mà sử dụng để truyền liệu qua đường dây điện thoại Sự tiến hóa dòng modem từ V.26 (tốc độ liệu 2400bps, băng thông 1200Hz), V.27 modem (tốc độ liệu 4800bps, băng thông 1600Hz), modem ... hóa tốt Theo lý thuyết giới hạn số bits/ký tự entropy có giá trị 1.469 bits/ký tự Entropy nguồn định suất kênh truyền Nếu đưa mức entropy cao hơn, giảm số bits/ký tự xuống thấp có lẽ đạt giới ... Sơ đồ mã hóa yều cầu trung bình 1.65 bits/ký tự Nếu mã hóa ký tự trực tiếp mà không xét đến xác suất, sơ đồ mã hóa là: AA 00 AB 01 BA 10 BB 11 Như cần bits/ký tự Cơ chế mã hóa yêu cầu xem xét...
Ngày tải lên: 18/09/2012, 10:13