automatic gain control agc circuits theory design
Tài liệu Giáo trình kỹ thuật điện: Mạch tự động điều chỉnh độ lợi AGC AUTOMATIC GAIN CONTROL pptx
... mạch tương tự như mạch AGC cho màu. Khi C mạnh thì AGC phân cực yếu và đổi lại khi C yếu thì AGC cho phép phân cực mạnh. Với màu AGC có tên là ACC (Automatic Color Control) . hình Khi qua ... và (R - Y) như sau: Giáo trình kỹ thuật điện Mạch tự động điều chỉnh độ lợi AGC AUTOMATIC GAIN CONTROL Ta dùng 2 Transistor T 1 và T 2 dẫn điện ở 2 ... vậy mạch AGC phải làm tăng phân cực ⇒ điểm Q 3 phải dời v im Q 4 (IC Q3 ặ IC Q4 ). Vy on [BC] ng với mạch AGC thuận. Trong mạch AGC đã khảo sát ta thấy: Khi v i tăng mạch AGC có tác...
Ngày tải lên: 15/12/2013, 16:15
Tài liệu Integrated Circuits A Design Perspective pptx
... Integrated Circuits 2nd Introduction The First Integrated Circuits The First Integrated Circuits Bipolar logic 1960’s ECL 3-input Gate Motorola 1966 EE141 7 â Digital Integrated Circuits 2nd Introduction The ... Digital Integrated Circuits 2nd Introduction Design Abstraction Levels Design Abstraction Levels n+n+ S G D + DEVICE CIRCUIT GATE MODULE SYSTEM EE141 3 â Digital Integrated Circuits 2nd Introduction Digital ... Circuits 2nd Introduction Digital Integrated Circuits Digital Integrated Circuits Introduction: Issues in digital design The CMOS inverter Combinational logic structures Sequential logic gates Design methodologies Interconnect:...
Ngày tải lên: 23/12/2013, 03:16
QUASILINEAR CONTROL: Performance Analysis and Design of Feedback Systems with Nonlinear Sensors and Actuators pot
... 0.2. Quasilinear control system control- theoretic developments of problems P1–P5, which parallel those of linear control theory, leading to what we call quasilinear control (QLC) theory. The question ... sense design: Given P(s), f(·), and g(·), design a controller C(s) so that the quality of reference tracking and disturbance rejection meets specifications. P3. Wide sense design: Given P(s), design ... Optimal Control, Prentice Hall, Upper Saddle River, NJ, 1996 The theory of absolute stability has its origins in the following: [1.12] A.I. Lurie and V.N. Postnikov, “On the theory of stability of control systems,”...
Ngày tải lên: 23/03/2014, 15:20
GPS PSEUDOLITES : THEORY, DESIGN, AND APPLICATIONS
... milliseconds, synchrolites increase the allowable band- width of position feedback loops in automatic control systems, while virtually eliminating the effects of selective availability (SA) clock ... prototype pseudolite and synchrolite systems, including results from 110 fully automatic landings of a Boeing 737 airliner controlled by IBLS, are presented. Existing pseudolite applications are described, ... an APL. Chapter 4 discusses the designs of all these devices; Chapter 5 describes the tests. 1.6 Outline of this Dissertation This dissertation begins with the theory of GPS pseudolites. Chapter...
Ngày tải lên: 27/04/2014, 23:47
RECENT ADVANCES IN ROBUST CONTROL – NOVEL APPROACHES AND DESIGN METHODSE Part 1 pdf
... of designed control system in the case of integrators in series at various T 1 . 2.2 Canonical controllable form Let us suppose that control plant is presented (or reduced) by canonical controllable ... decentralized design principles. This approach aims on partitioning the overall design problem into a number of constrained controller design problems. Generalized internal model control has ... principle is applied to robust control of nonlinear systems. The control of vibrations of an electric machine is reported in Chapter 13. The design of a robust controller is presented, that...
Ngày tải lên: 19/06/2014, 08:20
RECENT ADVANCES IN ROBUST CONTROL – NOVEL APPROACHES AND DESIGN METHODSE Part 2 potx
... on automatic control Vol. 49(No. 12): 2266–2271. Xie, L. & DeSouza, C. (1992). Robust h ∞ control for linear systems with norm-bounded time-varying uncertainty, IEEE Trans. Automatic Control ... fuzzy control systems with bounded uncertain delays, IEEE Transactions on Fuzzy Systems Vol. 10(No. 1): 92–97. 38 Recent Advances in Robust Control – Novel Approaches and Design Methods Robust Control ... cos 2 (x 1 ) (45) 34 Recent Advances in Robust Control – Novel Approaches and Design Methods Recent Advances in Robust Control – Novel Approaches and Design Methods 42 {} 1 1 ˆˆ ˆ () (())...
Ngày tải lên: 19/06/2014, 08:20
RECENT ADVANCES IN ROBUST CONTROL – NOVEL APPROACHES AND DESIGN METHODSE Part 3 pot
... the feedback control on the reduced model using PID control, state feedback control using pole assignment, state feedback control using LQR optimal control, and output feedback control. Conclusions ... In control engineering, robust control is an area that explicitly deals with uncertainty in its approach to the design of the system controller [7,10,24]. The methods of robust control are designed ... various spectrum of control methods such as (a) PID-based control, (b) state feedback control using (1) pole placement-based control and (2) linear quadratic regulator (LQR) optimal control, and (c)...
Ngày tải lên: 19/06/2014, 08:20
RECENT ADVANCES IN ROBUST CONTROL – NOVEL APPROACHES AND DESIGN METHODSE Part 4 ppt
... uncertainties. ã The designed controller is confined on the magnitude of the control signals. ã The designed controller is expected to achieve the desired control target with minimum total control effort ... Conventional NN Recent Advances in Robust Control – Novel Approaches and Design Methods 92 intelligent control design framework to guide the controller design for uncertain, nonlinear systems ... based control design. The details of the hierarchical neural control design methodology are given in Section 4. The synthesis of hierarchical neural controllers is to achieve (a) near optimal control...
Ngày tải lên: 19/06/2014, 08:20
RECENT ADVANCES IN ROBUST CONTROL – NOVEL APPROACHES AND DESIGN METHODSE Part 5 pdf
... compensated controller. The neural controller using a WNN is designed to mimic an ideal controller and a robust controller is designed to compensate for the approximation error between the ideal controller ... switching control design based on PI control (Alvarez-Ramirez et al., 2001), optimal control (Hsieh, Yen, & Juang, 2005), sliding-mode control (Vidal-Idiarte et al., 2004), fuzzy control (Vidal- Idiarte ... The WNN control is the main tracking controller that is used to mimic the computed control law, and the robust controller is designed to compensate the difference between the computed control...
Ngày tải lên: 19/06/2014, 08:20
RECENT ADVANCES IN ROBUST CONTROL – NOVEL APPROACHES AND DESIGN METHODSE Part 6 potx
... the control action. In this example, since the control gain is fixed, it is independent of the states. This eases control manipulation. The developed theory can be used effectively in most control ... considered in the design process. This results in smaller bandwidths and lower cost of feedback. 2.1 System design Engineering design theory claims that every engineering design process should ... the controller high frequency generalized gain- bandwidth product (Nwokah et al., 1997). The information content of the design process is embedded in G, the forward loop controller to be designed,...
Ngày tải lên: 19/06/2014, 08:20
RECENT ADVANCES IN ROBUST CONTROL – NOVEL APPROACHES AND DESIGN METHODSE Part 9 docx
... (0)/30 t yydy ττ =− ∫ (86) The output feedback control gains in (50), (51)-(55) are selected as follows: Recent Advances in Robust Control – Novel Approaches and Design Methods 234 Fig. 2. ... ˆˆ K ρ ρ ∀≥ , where 1 ˆ ˆ n Kv n d K d ρ + = , (33) the constant gain v K of the control system of Fig. 2, with a controller designed by using (21), is not minus than ˆ v K , , , 1, 2 , , ... main goal is to design a linear and time invariant controller such that: 1. ,, ,, ,AAA BBB CCC −+ −+ −+ ∀∈ ∀∈ ∀∈ ⎡⎤⎡⎤ ⎡⎤ ⎣⎦⎣⎦ ⎣⎦ the control system is of type one, with constant gain ˆ vv KK≥...
Ngày tải lên: 19/06/2014, 08:20
Automatic Flight Control Systems Latest Developments Part 15 pot
... both offline design and analysis of new fault tolerant flight control system algorithms and integration on simulation platforms for piloted hardware in the loop Automatic Flight Control Systems ... reconfigurable control techniques has been developed within the framework of the European GARTEUR Flight Mechanics Action Group FM-AG(16) on Fault Tolerant Control. Validated against data from ... T.J.J., Chu, P., Mulder, J.A. & Joosten, D.A. (2011). Modular Flight Control Reconfiguration Design and Simulation. Control Engineering Practice, Elsevier, Vol. 19, No. 6, (2011), pp. 540–554,...
Ngày tải lên: 20/06/2014, 23:20
Báo cáo hóa học: " A Sigma-Delta ADC with Decimation and Gain Control Function for a Bluetooth Receiver in 130 nm Digital CMOS" pdf
... requirements, there is a need for an au- tomatic gain control (AGC) function. Providing some gain control at the input of the ADC helps distributing the AGC function between the ADC and the intermediate ... antialiasing filter and a two-step gain control are merged into the sam- pling network. The decimation-by-two function relaxes the settling requirements of the amplifier. The two-step gain control increases the ... Integration Branch, as a Design Manager of the Advanced Analog Cells Section, in charge of the design of data converters for personal communica- tion systems. His current main interest is the design of low-power low-voltage...
Ngày tải lên: 22/06/2014, 22:20
Báo cáo hóa học: " Research Article Pushing it to the Limit: Adaptation with Dynamically Switching Gain Control" docx
... amplification. 0 1 2 3 4 5 0.5 1 1.5 2 2.5 15 10 5 0 log 10 intensity Time (t) Gain G(t) Figure 5: Dynamics of the “switching” gain control: the same as in Figure 4, but here the dynamics of the signal ... which is used for exerting divisive gain control directly on inten- sity values (cf. Table 1). The lateral connectivity between cells that form the diffusion layer is controlled by inverse We- ber contrasts. ... respec- tively. The model behavior is quite robust against changes in the damping time constant τ 1 , since this mechanism is backed up by the signal gain control stage (3). Nevertheless, variations...
Ngày tải lên: 22/06/2014, 23:20
AUTOMATIC FLIGHT CONTROL SYSTEMS – LATEST DEVELOPMENTS pot
Ngày tải lên: 29/06/2014, 09:20
