describing function


Also found in: Wikipedia.

describing function

[di′skrīb·iŋ ‚fəŋk·shən]
(control systems)
A function used to represent a nonlinear transfer function by an approximately equivalent linear transfer function; it is the ratio of the phasor representing the fundamental component of the output of the nonlinearity, determined by Fourier analysis, to the phasor representing a sinusoidal input signal.
Mentioned in ?
References in periodicals archive ?
"Describing function based analysis of the characteristics of chaotic behavior in the jerk dynamic system".
Evaluacion del Efecto de un Retardo y una No Linealidad en Sistemas con Comportamiento Caotico Utilizando Exponentes de Lyapunov
Substituting dependences (16) and (17) to the general solution, described with formula (1), upon double integration, gives a dependence describing function of bending of the analysed converter (18):
Electromechanical characteristics of piezoelectric converters with freely defined boundary conditions and geometry
Nonlinear controller's syntheses using inverse describing function for use with hard nonlinear system have developed for several researchers [11-13].
Karimi, "Nonlinear controller synthesis based on inverse describing function technique in the MATLAB environment," Advances in Engineering Software, vol.
Jonckheere, "[H.sub.[infinity]] control of a class of nonlinear systems using describing functions and simplicial algorithms," IEEE Transactions on Automatic Control, vol.
Model based adaptive piecewise linear controller for complicated control systems
Each instrument or type of equipment is introduced with clear photographs or drawings followed by bulleted text describing function, characteristics, and practice notes.
Dental Instruments: A Pocket Guide, Third Edition
A detailed describing function analysis for theoretical support of the controller gain change method.
A theoretical justification through describing function analysis is also presented.
In this section, describing function analysis is used to provide a theoretical justification for the observed closed-loop behaviour due to changes in controller gain.
Detection and diagnosis of plant-wide oscillations
Hinkle (2001) provides results describing function during acute care following a motor stroke in more detail.
Variables explaining functional recovery following motor stroke
Working hierarchically from most important information to the least, Anthony describes Bi-design, overall processing flows and network browsers, network site servers, server processing reorganization, and progresses to his system of derived simplicity, describing function set network representation, database representation, data relationship management and a dream language.
Iterating Infusion: Clearer Views of Objects, Classes, and Systems
It systematically analyzes several fuzzy proportional-integral-derivative (PID) control systems and state space control and also takes on self-learning control mechanisms while covering fuzzy reasoning, fuzzy control, linear and non-linear fuzzy PID control, stability analysis by describing functions, and supervisory control.
Foundations of fuzzy control

Encyclopedia browser ?
Full browser ?