frequency domain analysis in control system ppt

Ngày tải lên: 22/06/2014, 22:20

... the research and developments in digital signal processing that is instrumental in the extraordinary progress in the information technology that we are witnessing. 4 In practice, any given signal ... 4000 Hz is hence called the “folding frequency. ” In general, half the sampling frequency is known as the folding frequency (expressed in radians per second or in hertz). 4 This author feels that ... result in deriving X 3 (e jω ) above. The sequence x 13 (n) is plotted in Figure 3.13, while the plots of x 1 (n), x 3 (n) are shown in Figures 3.14 and 3.15, respectively. 148 FREQUENCY- DOMAIN ANALYSIS Suppose...

Ngày tải lên: 29/09/2013, 21:20

... are constants. The given function is called In addition, for all problems of interest in control system analysis, the initial conditions are given. In other words, values of dxldt,. . . , are ... be obtained by matching the term with the second term of the conjugates of Eq. (3.11) or by determining C instead of B. ALTERNATE METHOD USING QUADRATIC TERM. Another method for solv- ing Example ... are determined by the method shown in Example 3.6. These terms, according to Table 2.1, lead to the following expression as the inverse transform: + + (n + + 1 (3.26) It is interesting to recall...

Ngày tải lên: 22/12/2013, 21:18

... determine the performance of the final, closed-loop system. The experimental testing is performed in both the frequency domain and the time domain in order to determine the closed-loop system ... Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 4 4. Mathematical Model The steps in mathematical modeling are as follows: • Define System, System Boundary, System Inputs ... radians/second. 7.1 Frequency- Domain Analysis 7.2 Time -Domain Analysis Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 25 The pinout for the LF 411C amplifier...

Ngày tải lên: 25/01/2014, 13:20

... correlates with task success and minimal interruptions—important goals of SDS. In future work we will explore the consequences of system entrainment to SDS users in helping systems achieve these goals, ... paper we examine novel types of entrain- ment in two corpora—Switchboard and the Columbia Games corpus. We examine en- trainment in use of high -frequency words (the most common words in the corpus), ... had a high inclination for empathy (understanding the point of view of the other) entrained to a greater extent than others. Reitter et al. (2007) also found that degree of entrainment in lexical...

Ngày tải lên: 08/03/2014, 01:20

... hazard corresponding x 2 . In this case x i := (x 1 , x 3 , x 4 ), so there will be 2 n = 2 3 = 8 cases to examine, as shown in table 2: Now we examine individual cases shown in table 2: Table ... time of circuit system should be in thought firstly in designing circuit network. In that case Boolean algebra does not seems to be fully suitable for describing actual circuit systems. Furthermore, ... automata, workshops in computing, Springer, 1992. [2] M. Paul, Chirlian, Analysis and Design of Digital Circuits and Coputer Systems, 1976. [3[ John Knight, Gliches and Hazard in Digital Circuits,...

Ngày tải lên: 14/03/2014, 13:20

... across domains. 4.2 System Performance on Different Domains In the second set of experiments we sought to com- pare system results on sentences using in -domain and out-of -domain training. Table ... are used (α = 0.025). It is interesting to note that on sentences, regard- less of the domain used in system training and re- gardless of the domain used in system testing, un- igrams tend to perform ... dictionary-trained systems with the accuracy of in -domain trained systems. 6 Integrating the Corpus-based and Dictionary-based Approaches The strategy of integration of two or more sys- tems in a single...

Ngày tải lên: 31/03/2014, 00:20

... strategies to minimize queu- ing delay for single-user single-carrier systems. Similarly dynamic programming was adopted in [22] for scheduling packets over a time-slotted single-user wireless link. Perhaps the ... bounding constraints. We propose a heuristic solution where in order to get a good starting point we solve the problem by ignoring the bounding constraints (26)and(27). This problem results in output ... or may not be satisfying the bounding constraints. However, once this data rate is obtained, it is used in subsections A to C to get minimum output rate satisfying constraints (26)and(27). We...

Ngày tải lên: 21/06/2014, 11:20

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 22/06/2014, 23:20

... meaning of the basic expressions (basic meanings). 2. the meaning of the rules (rule meanings). In Montague Grammar these meanings are ex- pressed in intensional logic. In the Rosetta system ... ordering of the rules in mind, e.g. he may want to express that the rules for inserting determiners during NP-formation should be applied after the rules for inserting adjectives. In the M-grammar ... individuals in a flexible way so that the system will be easy to modify, maintain and extend. In computer science it is common practice to di- vide a large task into subtasks with well-defined interfaces....

Ngày tải lên: 22/02/2014, 10:20

... coach.l.2: "privat tutor, trainer in athletics" CLASS: ACtingPerson in in. l.l: " ;in the evening" CLASS: DURation SELECTION: TIMe in. l.2: " ;in the room" CLASS: PLAce ... result there are gained instances of frame concepts which are the input for further domain dependent analysis by the pragmatic module. This step (the instantiation) now is in work. All others ... bitvectors and priorities pP(w) is given in Fig. 4. 3. Scoring A nmin problem in reducing the amount of hypotheses for further analysis is to find appropriate scores, so that only the hypotheses...

Ngày tải lên: 01/04/2014, 00:20

... in ensur ing correct filling in of consent forms and generation of theatre lists. Further tools such as briefings and debriefings may help in this area. The relatively high frequency of listing errors ... result in considerable improvements to health outcomes, it is increasingly appreciated that surgery is a high risk industry. Tools developed in the aviation industry are beginning to be used to minimise ... in due course further increase the frequency and quality of reporting. Y et, it is increasingly likely that mandatoryreportingofferstheonlyviablesolutionto accruing reflective data. Perhaps in...

Ngày tải lên: 20/06/2014, 04:20

... of nonlinear variational inequalities. Peng and Zhu [9] introduced a new system of gener- alized mixed quasivariational inclusions involving (H, h)-monotone operators. Very Chen and Wan Journal of Inequalities ... continuous mapping reduces to a nonex- pansive mapping. (2) If g Î (0, 1), then a g-Lipschitz continuous mapping reduces to a contractive mapping. Definition 2.3. Let A: E × E ® E be a mapping. ... variational inequalities introduced by Stampacchia [1] in the early sixties, are among the most interesting and intensively studied classes of mathematics problems and have wide applications in the fields...

Ngày tải lên: 21/06/2014, 00:20

Ngày tải lên: 21/06/2014, 23:20

Ngày tải lên: 22/06/2014, 23:20

Ngày tải lên: 05/09/2013, 16:11

... proposes an adaptive control method of partially known system and shows its application result to control of a two-wheeled welding mobile robot. The controlled system is designed using Lyapunov stability. ... Chung, T.H. Bui, and S.B. Kim, A Simple Nonlinear Control of Two-Wheeled Welding Mobile Robot, Korean Transaction on Control, Automation and Systems Engineering, (code: 02-02-E04, accepted to publish). ... 1995. [17] N. Sarkar, X. Yun and V. Kumar, Control of Mechanical Systems With Rolling Constrains: Application to Dynamic Control of Mobile Robots”, The Int. Journal of Robotics Research, Vol....

Ngày tải lên: 10/12/2013, 13:16

Ngày tải lên: 25/12/2013, 08:50

Ngày tải lên: 03/01/2014, 19:40