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Transfer function

About: Transfer function is a research topic. Over the lifetime, 14362 publications have been published within this topic receiving 214983 citations. The topic is also known as: system function & network function.


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Journal ArticleDOI
TL;DR: Experimental and theoretical considerations indicate that the simplest method of obtaining the modulation transfer function of screen-film systems is by calculation from the measured line spread-function, but care must be taken, since the sweeping tails of the linespread-function and the presence of development effects can introduce a considerable error in the transfer function calculation.
Abstract: Experimental and theoretical considerations indicate that the simplest method of obtaining the modulation transfer function of screen-film systems is by calculation from the measured line spread-function. However, care must be taken, since the sweeping tails of the line spread-function and the presence of development effects can introduce a considerable error in the transfer function calculation. An experimental method involving a narrow slit is described. Results are shown for three typical screen-film systems having different resolutions.

82 citations

Journal ArticleDOI
TL;DR: In this paper, a dynamic analysis of the boost converter with an output filter reveals that magnetic coupling between inductors allows transfer of the zeros to the left half-plane of the control-to-output transfer function.
Abstract: A dynamic analysis of the boost converter with an output filter reveals that magnetic coupling between inductors allows transfer of the zeros to the left half-plane of the control-to-output transfer function. Similar results requiring smaller magnetic components are obtained by combining magnetic coupling with damping of the output filter. The analysis is based on the application of the Routh-Hurtwitz's criterion to the numerator of the transfer function in order to derive the design conditions for the converter parameters. A design example illustrates the procedure, and experimental results verify the theoretical predictions. The application of these techniques will allow the design of high efficiency voltage boost-based regulators with dynamic behavior similar to buck-derived structures.

82 citations

Journal ArticleDOI
TL;DR: In this article, small-signal models used to derive the open-loop power-stage input voltage, to-capacitor voltage, input voltage-to-inductive current, and control-toindependent current transfer functions are derived.
Abstract: This paper presents the ac small-signal modeling of the power stage of pulsewidth-modulated Z-source converter in continuous conduction mode by the circuit-averaging technique. The small-signal models used to derive the open-loop power-stage input voltage-to-capacitor voltage, input voltage-to-inductor current, control-to-capacitor voltage, and control-to-inductor current transfer functions are derived. Open-loop power-stage transfer functions corresponding to the capacitor voltage loop and inductor current loop are derived. The transfer functions derived take into account the equivalent series resistances of the inductors and capacitors. Experimental validation of the derived small-signal models is presented for a laboratory prototype. The theoretical predictions are in good agreement with the experimental results.

81 citations

Journal ArticleDOI
TL;DR: In this article, a new method is presented for active vibration control of the axially moving string, which is formulated in the Laplace transform domain, and the transfer function of a closed-loop system consisting of the plant, a feedback control law and the dynamics of the sensing and actuation devices.
Abstract: A new method is presented for active vibration control of the axially moving string, one of the most common models of axially moving continua. The control is formulated in the Laplace transform domain. The transfer function of a closed-loop system, consisting of the plant, a feedback control law and the dynamics of the sensing and actuation devices, is derived. Analysis of the root loci of the closedloop system gives two stability criteria. Stabilizing controller design is carried out of both collocation and noncollocation of the sensor and actuator. It is found that all the modes of vibration can be stabilized and that in principle the spillover instability can be avoided. Also, the steady-state response of the stabilized string to periodic, external excitation is presented in closed form.

81 citations

Journal ArticleDOI
TL;DR: This work designs tenth-order IIR filters, suitable for efficient real-time implementation, from preprocessed HRTF impulse responses that are of significantly superior quality to current IIR models derived with the Prony and Yule-Walker methods.
Abstract: We propose a novel technique for the design of low-order infinite impulse response (IIR) filter models of head-related transfer functions (HRTFs) that uses balanced model truncation. We design tenth-order IIR filters, suitable for efficient real-time implementation, from preprocessed HRTF impulse responses that are of significantly superior quality to current IIR models derived with the Prony and Yule-Walker methods.

81 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023351
2022810
2021329
2020421
2019461
2018493