Topic
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.
Papers published on a yearly basis
Papers
More filters
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10 Dec 2002TL;DR: In this article, the Hammerstein model identification in the frequency domain using the sampled input-output data is discussed, where the fundamental frequency and harmonics generated by the unknown nonlinearity are explored and a frequency domain approach is proposed.
Abstract: This paper discusses Hammerstein model identification in frequency domain using the sampled input-output data. By exploring the fundamental frequency and harmonics generated by the unknown nonlinearity, we propose a frequency domain approach and show its convergence for both the linear and nonlinear subsystems in the presence of noise. No a priori knowledge of the structure of the nonlinearity is required and the linear part can be non-parametric.
60 citations
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TL;DR: In this article, a general synthesis method for high-order current-mode OTA-C (operational transconductance amplifiers and capacitors) filters is presented based on the analytical solution of a single, nth-order generic filter transfer function and the generation of n number of realizable transfer functions implemented using lossless integrators.
Abstract: This work presents a new general synthesis method for high-order current-mode OTA-C (operational transconductance amplifiers and capacitor) filters. The method is based on the analytical solution of a single, nth-order generic filter transfer function and the generation of n number of realizable transfer functions implemented using lossless integrators. The method provides systematic synthesis approach to high-order OTA-C filters. Furthermore, the method generates circuits that are optimal in terms of components count and without trading off any of the VLSI features of OTA-C filters. Simulation results are included validating the synthesis method.
60 citations
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TL;DR: In this article, a general structure to control long time-delay plants is proposed and an easy methodology to tune the control parameters is outlined, where all the sensitivity transfer functions are delay free.
60 citations
01 Jan 2004
TL;DR: Three definitions of the transfer function for an infinite-dimensional system are studied and it is shown that these definitions always agree on the right-half plane bounded to the left by the growth bound of the underlying semigroup, but that they may differ elsewhere.
Abstract: In this paper, we study three definitions of the transfer function for an infinite-dimensional system. The first one defines the transfer function as the expression $C(sI-A)^{-1}B+D$. In the second definition, the transfer function is defined as the quotient of the Laplace transform of the output and input, with initial condition zero. In the third definition, we introduce the transfer function as the quotient of the input and output, when the input and output are exponentials. We show that these definitions always agree on the right-half plane bounded to the left by the growth bound of the underlying semigroup, but that they may differ elsewhere.
60 citations
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TL;DR: In this paper, the harmonic content and frequency response of multilevel converters were investigated and it was shown that the transfer function of uniformly sampled modulators is a bessel function associated with the inherent sampling process.
Abstract: Multilevel converters can achieve an overall effective switch frequency multiplication and consequent ripple reduction through the cancellation of the lowest order switch frequency terms. This paper investigates the harmonic content and the frequency response of these multimodulator converters. It is shown that the transfer function of uniformly sampled modulators is a bessel function associated with the inherent sampling process. Naturally sampled modulators have a flat transfer function, but multiple switchings per switch cycle will occur unless the input is slew-rate limited. Lower sideband harmonics of the effective carrier frequency and, in uniform converters, harmonics of the input signal also limit the useful bandwidth. Observations about the effect of the number of converters, their type (naturally or uniformly sampled), and the ratio of modulating frequency and switch frequency are made.
60 citations