Titlebook: Computer Controlled Systems; Analysis and Design Efim N. Rossenwasser,Bernhard P. Lampe Book 2000 Springer-Verlag London 2000 Digital cont

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Open-loop systems with a computerA simplified block-diagram of a computer with analogue interface is shown in ., where

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Closed-loop systems with a single sampling unitIn this chapter we investigate the closed-loop system shown in ., where . and . are the transfer functions of the plant and actuator, respectively, and . denotes a computer with the structure shown in Fig. 10.1. The system shown in Figure 10.1 is described by the following operator equations

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Analysis of open-loop SD systems under deterministic disturbancesAs one of the simplest examples of the application of the proposed method, we consider the elementary open-loop sampled-data system shown in ., where U.is the sampling unit (sample and hold) (9.6) and . is the transfer function of the continuous-time network, which possesses the form

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https://doi.org/10.1007/978-1-4471-0521-3Digital control and filtering; Frequency domain methods; MATLAB; Optimal control and filtering; Parametr

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Computer Controlled Systems978-1-4471-0521-3Series ISSN 0178-5354 Series E-ISSN 2197-7119

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https://doi.org/10.1007/978-3-662-49854-5 operator the property of invariance does not take place and the response to a shifted signal will not, in the general case, coincide with the shifted response. PTFs of time-variable operators depend explicitely on two arguments, s and .

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https://doi.org/10.1007/978-3-642-55939-6tochastic process. The last property means that, Åström (1970). where . denotes the operator of mathematical expectation and ... is the autocorrelation function of the signal . If we take t. = . and t. = . + τ, then. and, as is well known