laplace+transforms+of+discrete+time+signals

... infinite set of possible signals is converted into a finite set The next step of encoding maps the finite set of discrete time, continuous amplitude signals into a finite set of discrete time, discrete ... signals Quantization is the process of approximating any discrete time, continuous amplitude signal into one of a finite set of discrete time, continuous amplitude signals based on a particular distortion ... as its domain A discrete time, continuous amplitude signal has R as its range A discrete time, discrete amplitude signal has Z as its range Here, the focus is on discrete time signals Quantization...

Ngày tải lên: 18/10/2013, 04:15

... the global exponential stabilizability of discrete- time systems with time- delayed states Finally, as an application, we consider the global stabilization of the nonlinear control systems Preliminaries ... 37, no 2, pp 521–542, 1999 10 E K Boukas, “State feedback stabilization of nonlinear discrete- time systems with time- varying time delay,” Nonlinear Analysis: Theory, Methods & Applications, vol ... theorem for discrete- time systems,” IEEE e Transactions on Automatic Control, vol 41, no 6, pp 903–907, 1996 12 E N Chukwu, Stability and Time- Optimal Control of Hereditary Systems, vol 188 of Mathematics...

Ngày tải lên: 21/06/2014, 20:20

... stability of time- dependent difference equations in Banach spaces,” Journal of the Institute of Mathematics and Its Applications, vol 14, no 3, pp 335–346, 1974 11 S Zhang, “Estimate of total stability ... 1978 J Dibl´k and D Ya Khusainov, “Representation of solutions of discrete delayed system x k ı Ax k Bx k −m f k with commutative matrices,” Journal of Mathematical Analysis and Applications, vol ... stability of the system xn Axn−1 Bxn−k , 4.3 where A, B are m×m-matrices, xn ∈ Rm By means of a characteristic equation, they established many results concerning the stability of the solutions of such...

Ngày tải lên: 22/06/2014, 06:20

... QG(x) ≤≤ 0, x ∈ R+ Then ˆ the discrete- time, nonlinear nonnegative dynamical system Ᏻ is partially monotonic with ˆ respect to x Proof The proof is similar to the proof of Theorem 3.2 with Proposition ... and QB ≤≤ are nonnegative Then the discrete- time, linear nonnegative dynamical system given by (2.1) is monotonic ˆ Proof The proof is a direct consequence of Theorem 3.2 with n = n and {k1 , ... ≤≤ Q ˆ Proof The proof is a direct consequence of Theorem 3.4 with n = n and {k1 , ,kn } = ˆ {1, ,n} Finally, we present a sufficient condition for weighted monotonicity for a discrete- time, linear...

Ngày tải lên: 23/06/2014, 00:20

... of interest to consider conditions of robust stability of a polytope of matrices It is well known that, in general, the stability of all vertex matrices is not sufficient for robust stability of ... Stability radii of linear discrete- time systems and symplectic pencils, Inter J Nonlinear and Robust Control, (1991) 79–97 11 D Hinrichsen and N K Son, Stability radii of positive discrete- time systems ... (Eds.) Control of Uncertain Systems, Vol of Progress in System and Control Theory, Birkh¨user, Basel, 1990, 119-162 a D Hinrichsen and A J Pritchard, On the Robustness of Stable Discrete- Time Linear...

Ngày tải lên: 06/08/2014, 05:20

... behavior of 1.1 Adaptive Neural Network Control of Nonlinear Systems discrete- time models and continuous -time models In this section, the development in adaptive NN control of discrete- time nonlinear ... control for time- varying discrete- time systems was investigated Compared with those results obtained for SISO discrete- time systems, fewer results can be found for MIMO discrete- time system For ... is of no use; (ii) propose a different kind of neural network weight update law for discrete- time systems; (iii) propose a modified discrete- time projection algorithm compare to continuous-time...

Ngày tải lên: 15/09/2015, 21:13

... The aim of this article was to give necessary and sufficient conditions for existence and uniqueness of solutions for generalized linear discrete- time boundary value problems of a class of linear ... vectors the p linear independent eigenvectors of the finite generalized eigenvalues of sF-G (see [1] for an algorithm of the computation of Qp) Proof Let Q = [QpQq], where Qp ∈ Mmp and Qq ∈ Mmq ... Page of The matrix pencil theory has extensively been used for the study of linear difference equations with time invariant coefficients, see for instance [1-5] A matrix pencil is a family of matrices...

Ngày tải lên: 20/06/2014, 22:20

... −1 −1 Time (ms) 10 12 0.5 (a) (b) Level Level −1 −1 Time (ms) 10 12 0.5 (d) Level Level −1 −1 Time (ms) 10 12 0.5 Time (ms) (e) (f) Level Level Time (ms) (c) 0 −1 −1 Time (ms) 10 12 0.5 Time (ms) ... papers have dealt with discrete- time modelling of an analogue oscillator In this paper, two new discrete- time models for the Moog sawtooth oscillator suitable for realtime implementation were ... interface with sampling frequency 44100 KHz and resolution of 16 bits Two novel discrete- time modelling strategies well suited for real -time implementation are proposed The proposed strategies...

Ngày tải lên: 21/06/2014, 05:20

... points, of which, S is the onset of percussion wave, P the peak of percussion wave, E the onset of tidal wave, K the peak of tidal wave, F the onset of dicrotic wave, and L the peak of dicrotic ... automated parameter extraction of pulse signals is constructed The framework includes characteristic point detection, estimation of the number of pulse waveform peak, labeling of characteristic points, ... to (8) The zero crossing points of W f c correspond to the corners of f (x), that is, the characteristic points of the pulse signal 3.3 Estimation of the number of pulse waveform peaks Chain code...

Ngày tải lên: 22/06/2014, 19:20

... the recent work of Fan and Wang [4] and Chen [3], we study the existence of multiple positive periodic solutions of the difference equations derived in Section 2 Discrete analogue of system (1.2) ... 0,1,2, Equation (2.3) is a discrete analogue of system (1.2) Notice that the periodicity of parameters of (2.1) is sufficient, but not necessary for the periodicity of coefficients in (2.3) In system ... Periodic solutions for a discrete plankton model Naturally, more realistic models require the inclusion of the periodic changing of environment (e.g., seasonal effects of weather, food supplies,...

Ngày tải lên: 22/06/2014, 22:20

... in size while enabling the software-defined radio (SDR) of the future The organization of this paper is as follows Section presents discrete- time signal processing of the RF front-end mixer with ... processing gains of the temporal moving average (TMA) (followed by decimation) are merely due to the sampling time interval expansion of this discrete- time system (the sampling rate of the input ... − a1 of the total remaining charge in the “history” capacitor, provided it has no initial charge at the time of commutation Thus the system retains a1 portion of the total system charge of the...

Ngày tải lên: 22/06/2014, 22:20

... Thermodynamic modeling for discrete- time systems where ∆U U(k2 ) − U(k1 ) denotes the variation in the total energy of the discrete- time large-scale dynamical system Ᏻ over the discrete- time interval {k1 ... eT ploge (c + β/eT p) Proof The proof is identical to the proof of Proposition 3.17, and hence is omitted Proposition 4.8 shows that when all the energy of a discrete- time large-scale dynamical ... discrete- time systems The following definition introduces several types of stability for the discrete- time nonnegative dynamical system (2.1) Definition 2.4 The equilibrium solution z(k) ≡ ze of...

Ngày tải lên: 23/06/2014, 00:20

... Periodic solutions of a discrete- time diffusive system One question arises naturally Does the discrete analog of system (1.1) have a positive periodic solution? The purpose of this paper is to ... prescribed common period of the parameters in (1.2) It is well known that, compared to the continuous -time systems, the discrete- time ones are more difficult to deal with To the best of our knowledge, ... the discrete- time system analogue of (1.1) Our purpose in this paper is, by using the continuation theorem of coincidence degree theory [9], to establish sufficient conditions for the existence of...

Ngày tải lên: 23/06/2014, 00:20

... Block diagram of the system with observer 3.2 Discrete time optimal controller design based on discrete time full-order state observer The discrete time state variables equation of the BLDC motor ... output of the designed observer converge to those of system after about 0.01 second Fig shows that discrete time optimal tracking controller of the BLDC motor designed based on the discrete time ... [sec]  ˆ  Figure State θ of observer and state θ of plant Figure Tracking error of system using discrete time optimal controller State State 0.5 25 of  plant  of observer  ˆ  20 -0.5 Control...

Ngày tải lên: 05/08/2015, 13:57

... only at discretetime instants, and it is sometimes more convenient to model processes in discrete- time for ease of control design Thus, adaptive control and NN control of nonlinear discrete- time ... 1.1.1 Discrete- time adaptive control Discrete- time systems are of ever increasing importance with the advance of computer technology Even at the very early stage of adaptive control development, discrete- time ... Though for adaptive control of linear continuous -time systems, there are lots of counterpart results for linear discrete- time systems, adaptive control of nonlinear discrete- time systems have been...

Ngày tải lên: 14/09/2015, 08:39

Ngày tải lên: 04/10/2012, 10:02

... ảnh, pin alkaline, truyền tải điện Nhưng Coffin biết công việc làm Thomas Edison thứ hai – Coffin nhà phát minh tài ba Phát minh ông General Electric Co Coffin theo dõi hai phát kiến xã hội có tầm ... Charles Coffin Xây dựng sân khấu cho người trình diễn Chủ tịch General Electric không nhìn nhận thiên tài; ông xuất thân từ ngành sản xuất giày Đa số người đề chưa nghe đến Charles Coffin – minh ... New York Times Một thời điểm định đến vào năm 1971 bà đối mặt với Hồ sơ Lầu năm góc (Pentagon Papers) – nghiên cứu Bộ Quốc phòng bị tiết lộ cho thấy phủ lừa dối chiến tranh Việt Nam Tờ Times bị...

Ngày tải lên: 18/12/2013, 14:47

... of discrete- time state feedback mixed LQR/H ∞ control problem considered by Xu (2011) Secondly, we propose a numerical algorithm for calclulating a kind Advances in Discrete Time Systems of discrete- time ... completes the proof Robust Control Design of Uncertain Discrete- Time Descriptor Systems with Delays http://dx.doi.org/10.5772/ 51538 35 Robust Control Design of Uncertain Discrete- Time Descriptor ... calculation of quantities of nursing care required or to nursing Preface care management They focused on the critical issues including estimates of ward task times based on time study data, creation of...

Ngày tải lên: 14/02/2014, 09:20

... countries pre-service professional education of health workers is funded mainly out of education budgets 21 No Child out of Reach: Time to end the health worker crisis Ministries of health require ... adoption of the Global Strategy, the opportunity must be seized to accelerate the recruitment and training of more health workers to save millions of children’s lives ix No Child out of Reach: Time ... Child out of Reach: Time to end the health worker crisis Figure 4: Map of the world representing the health worker shortage by country The size of each country is relative to the number of doctors,...

Ngày tải lên: 18/02/2014, 15:20

... delete time or utter Figure 4: An example transformation of importance of a proposition put can be is in English, French or Japanese To produce speech, MIKE uses off the shelf text-to-speech software ... of the solid line is higher than that of the dotted As before, the benefits or otherwise of this modification should be decided by comparing with 1286 Figure 6: Example of MIKE'S commentary of ... surmount the lack of appro1288 E Andre, G Herzog, and T Rist 1994 Multimedia presentation of interpreted visual data In P McKevitt, editor, Proceedings of AAAI-g~, Workshop on Integration of Natural...

Ngày tải lên: 20/02/2014, 18:20