fuzzy logic control for autosteering

... (normalized) Fuzzy controller 1 Fuzzy controller 2 Packet type? Non-scaled transmission count Scaled transmission count I-pic P-pic B-pic ×5 ×3 ×2 Figure 2: Overview of the FLC of ARQ system 3.4 Fuzzy logic ... general situation for n = 5 (packet payload 1021 B) Clearly, delay climbs more rapidly under infinite ARQ within a critical region around P e =10−4 3.3 Fuzzy logic control A fuzzy subset is expressed ... scale) for varying values ofM (max number of retransmissions). fuzzy control decisions from the inference engine to a crisp or precise value, which is converted to a control signal In a fuzzy...

Ngày tải lên: 21/06/2014, 22:20

... NORMAL FUZZY MEMBERSHIP FUNCTIONS 61 5.4.1 Zero Time Delay for Fuzzy Logic and Analog Sensor Values 62 5.4.2 Zero Time Delay for Fuzzy Logic and Rounded Sensor Values 63 5.4.3 Time Delay for Fuzzy ... FLC WITH NON SUM NORMAL FUZZY MEMBERSHIP FUNCTIONS 59 5.3.1 Simulink Model for Robot and Fuzzy Toolbox for Fuzzy Rules 59 5.3.2 Simulink Model for Robot and M-File for Fuzzy Rules 60 5.4 RESULTS ... and terminologies used in fuzzy logic are described In Section 3.6 the fuzzy logic controller used is described Finally in Section 3.7 the tuning of the fuzzy logic controller is discussed 3.1...

Ngày tải lên: 26/10/2014, 14:35

... Adaptive IT2 Fuzzy Control 93 5.1 Adaptive Fuzzy Logic Controller Design 94 5.1.1 Control Plant Model 94 5.1.2 Indirect Adaptive Fuzzy Control 95 5.1.3 Direct Adaptive Fuzzy Control ... Interval Type-2 Fuzzy Logic System 30 3 Dynamic Positioning via Adaptive IT2 Fuzzy Control 38 3.1 Adaptive Fuzzy Logic Controller Design 39 3.1.1 Control Plant Model 39 3.1.2 Control and ... Trang 1ADAPTIVE INTERVAL TYPE-2 FUZZY LOGICCONTROL OF MARINE VESSELS XUETAO CHEN NATIONAL UNIVERSITY OF SINGAPORE 2013 Trang 2ADAPTIVE INTERVAL TYPE-2 FUZZY LOGICCONTROL OF MARINE VESSELS XUETAO...

Ngày tải lên: 09/09/2015, 10:21

... which a type-2 fuzzy controller can outperform type-1 fuzzy controller The main challenge that impedes the theoretical analysis is the lack of closed-form expressions for type-2 fuzzy controller, ... application of type-2 fuzzy logic, type-2 fuzzy logic control has been attracting increasing attention from the research community An open research issue is that whether a type-2 fuzzy logic controller ... interval type-2 fuzzy logic systems IEEE Trans Fuzzy Syst., 19(1):179–192, 2011 [88] D Wu and W W Tan A type-2 fuzzy logic controller for the liquid-level process In Proc IEEE Int Conf Fuzzy Syst.,...

Ngày tải lên: 09/09/2015, 18:49

... thesis seeks to develop controllers utilizing extensional fuzzy logic ries, namely non-singleton fuzzy logic and type-2 fuzzy logic and evaluate thesecontrollers’ performance on handling different ... distributions” [96] Later,Zadeh formalized these ideas into the paper “Fuzzy Sets” The fuzzy logic theoryintroduced by Zadeh is also termed type-1 fuzzy logic Since then, fuzzy logic theoryhas developed ... using fuzzy logic was marketed in 1987, the use offuzzy control has increased substantially A number of CAD environments for fuzzycontrol design have emerged together with VLSI hardware for fast...

Ngày tải lên: 11/09/2015, 16:04

... navigator consisted of two fuzzy controllers, the steering A Fuzzy Logic Controller for Autonomous Wheeled Vehicles 177 controller and the speed controller These two collaborative controllers were designed ... vehicle acceleration controller with a fuzzy logic controller for vehicle velocity and inter-vehicle distance (Sanchez et al., 1999) presented an off-line two-level fuzzy logic controller to track ... intersections, they designed a fuzzy logic controller with a minimum number of rules to accomplish the task (Maeda, et al., 1991) implemented fuzzy logic for the steering and the speed control of a two-wheel...

Ngày tải lên: 24/11/2020, 09:21

... the fuzzy logic controller has advantage because this control law is constr not depend on precise knowledge about model 3 DOUBLE LAYER FUZZY LOGIC CONTROLLER In this paper, three fuzzy controllers ... the fuzzy logic controller has advantage because this control law is constr not depend on precise knowledge about model 3 DOUBLE LAYER FUZZY LOGIC CONTROLLER In this paper, three fuzzy controllers ... the fuzzy logic controller has advantage because this control law is constr not depend on precise knowledge about model 3 DOUBLE LAYER FUZZY LOGIC CONTROLLER In this paper, three fuzzy controllers...

Ngày tải lên: 10/02/2020, 02:54

... navigates using a planned path and fuzzy logic Fuzzy logic is used to keep the robot on the path, except when the danger of collision arises In this case, a fuzzy controller for obstacle avoidance takes ... Robot control system by fuzzy logic 2.1 Control methodology Consider the conventional control system of a robot (Fig 2 1) which is based on the control of the error by using standard controllers ... Fig 2 2 Fig 2 2 General structure of a fuzzy logic control Trang 3The main component is represented by the Fuzzy Logic Controller (FLC) that generates the control law by a knowledge-based system...

Ngày tải lên: 26/10/2014, 14:39

... the actual code for a fuzzy PID controller as well as the block diagram of the PID controller used in my Santa Clara talk entitled Fuzzy Logic For Control Systems Adjusting to fuzzy design While ... scaling aspects of fuzzy logic are becoming important and may in fact be the over riding reason for the use of fuzzy logic Trang 6Fuzzy Logic in Embedded Microcomputers and Control Systems Appendix ... rush of people who asked for copies of the overhead slides I used in a talk on Fuzzy Logic For Control Systems at the 1993 Embedded Systems Show in Santa Clara A fuzzy logic tutorial There is...

Ngày tải lên: 08/03/2016, 11:34

... 9086 ha of the forestshave been affected by forest fire Also, in Iran, it is difficult to control forest fire natu-rally; however, it is possible to map different hazard levels for minimizing ... prediction capabilities of modified analyticalhierarchy process (M-AHP) and Mamdani fuzzy logic models using Netcad-GIS for forestfire susceptibility mapping, Geomatics, Natural Hazards and Risk, 7:2, ... prediction capabilities of modified analytical hierarchy process (M-AHP) and Mamdani fuzzy logic modelsusing Netcad-GIS for forest fire susceptibility mapping HAMID REZA POURGHASEMIy*, MASOOD BEHESHTIRADzand...

Ngày tải lên: 25/04/2016, 07:43

... transmission 2 FUZZY LOGIC 2.1 Concept The concept of fuzzy logic: To overcome the shortcomings of the traditional logic, Lotfi Zadeh has proposed one new theory of logic called fuzzy logic Zadeh's ... of fuzzy expression depends on the quality of the laws 2.2 Fuzzy Logic Controller A fuzzy logic controller has some basic components: Conversing functions: that fuzzifiers input values into fuzzy ... clusters, Fuzzy logic is applied to choose the cluster head and members of each cluster Multicast routing is very importance for routing in MANET that is optimized by GA Keywords:MANET, QOS, Fuzzy logic,...

Ngày tải lên: 10/02/2020, 01:05

... The control alogorithm used in this paper is adaptive fuzzy sliding mode The overall control is built and simulated in Matlab and compared with a sliding mode controller and a conventional PID controller ... illustrated the effectiveness of the proposed controller. Keywords Electro-Optical Tracking System; Sliding- Mode Control; Backstepping; Fuzzy; Fuzzy Sliding Mode Control. Symbols: Symbol Unit Definition ... conventional PID controller to solve the above challenge The paper [17] proposed a sliding mode algorithm Beside, some modern control algorithms such as fuzzy control [3], robust control [13] is...

Ngày tải lên: 10/02/2020, 03:39

... inequality. 1 INTRODUCTION Nowadays fuzzy logic-based control has proven to be a successful approach for controlling uncertain nonlinear systems [1, 2, 3, 4, 5] The fuzzy-model proposed by Takagi ... conditions Section 3 presents the performance of H trajectory tracking control for the T-S fuzzy descriptor system Section 4 proposes the novel T-S fuzzy descriptor for uncertain nonlinear system Section ... TRACKING CONTROL For the enhanced fuzzy system proposed in (7), the performance of the H∞ trajectory tracking control is demonstrated in the following theorem Theorem 1 Let us investigate the fuzzy...

Ngày tải lên: 26/03/2020, 02:03

... The control objective is to control motor speed to move periodically for a periodic step and to move periodically for a sinusoidal command For comparison, a PI controller is implemented to control ... the control chattering has been eliminated by using the proposed AWFCMAC Moreover, the performance measure comparisons of the PI controller, adaptive CMAC controller and the proposed AWFCAMC for ... procedure Chan and Wang [4] proposed a sliding-mode control for the rotor flux and torque using two independent control variables; however, their control algorithm is based on the plant model Lin...

Ngày tải lên: 11/01/2021, 04:42

... solution which uses fuzzy logic for controlling the suction/thrust force between each pair of individuals in the swarm The advantage of this solution is that the object can be controlled easily ... methods to control the swarm robot: the first is using fuzzy logic to control the suction/thrust force among the individual robots The advantage of this method is that the object can be controlled ... suction/thrust force between two individuals (i, j), ga(·)is the thrust force, gr(·)is the suction force σs∗∈R is the distance between two individuals i and j, where the suction force and thrust...

Ngày tải lên: 09/02/2021, 06:10

... agent, that is, for “agent-relativity.” For example: if the fact that revising for my exams will help me to pass is a reason for me to revise, given that passing is to my advantage, then for any x ... has a peculiar consequence For it now seems to follow in general – for any belief I have about what there is reason for me to – that so long as the belief has motivating force it’s true If the belief ... desire or even a motive; so the truism provides no support either for (II) or for (I) Still, it does provide some leverage for a form of internalism somewhat different to these This will become...

Ngày tải lên: 01/11/2013, 07:20

... Parameters for Scenario 89  Table B.2 Orbit Parameters for Scenario 91  Table B.3 Orbit Parameters for Scenario 93  Table B.4 Orbit Parameters for Scenario 95  Table B.5 Orbit Parameters for ... Positions 67  Table 4.4 Manpower for T/FDOA PED 69  Table 4.5 Costs for Manpower for T/FDOA PED in $100,000 .70  Table 5.1 Intelligence Types Provide Different Information About the Target ... Geolocation? 53  Equipment for Platforms to Be Capable of T/FDOA Geolocation 53  Requirements for T/FDOA 54  AT3 System 54  UAS Integration 57  Manpower for PED 64  CONOPs,...

Ngày tải lên: 15/03/2014, 21:20

... of the Ford Foundation Familiar with our previous work as analysts of education reform efforts, she asked us how we would explain the frequent failure of reform efforts to scale up The Ford Foundation ... students called for more targeted improvements (Commission on Work, Family, and Citizenship, 1988; Carnegie Task Force, 1989) These calls for reform galvanized educators to look for ways to improve ... assessment of efforts to implement school reforms at scale, Datnow and colleagues note that teacher support is crucial for the success of any reform If teachers not support the reform (which usually...

Ngày tải lên: 29/03/2014, 21:20

... necessary for effective photodegradation of the KGL dye [51] After irradiation for 120 min, the degrees of degradation of KGL were about 82.17% for the ZnO (150 ºC) sample, and almost 100% for ZnO ... of the 3D flower-like ZnO A schematic illustration of the formation process is presented in Fig 3, and a possible formation mechanism for the 3D flower-like ZnO is proposed as follows Firstly, ... sample synthesized at 120 ƕC for 17 h hydrothermal treatment Fig SEM images of the time-dependent evolution in the formation of 3D flower-like ZnO synthesized 18 at 120 ƕC for h (a), h (b), h (c),...

Ngày tải lên: 06/05/2014, 13:26

... requires a daily diary format, which may provide a more accurate reflection of changing clinical status for fluctuating symptoms than static instruments [12,17] Diary format assessments are most ... return envelope to mail completed forms Ethics approval was granted by the NEIRB Study measures General demographic information was collected online Specific information on clinical characteristics ... scores were evaluated for the 11 symptom items in the Revised SCOPA-DC by summing responses over the 21 time periods This 3-day sum score was transformed to a 0-100 scale, allowing for a maximum of...

Ngày tải lên: 20/06/2014, 15:20