This paper studies the design and performance assessment of setpoint feedforward controllers in univariate control loops. A design method for the setpoint feedforward controller is proposed, aiming at breaking the two fundamental tradeoffs among the setpoint tracking, the load disturbance rejection and the robustness against model uncertainties. The lower bound for the total variation (TV) is e...

A model-based design and tuning procedure is proposed for feedforward controllers, which accounts for model uncertainties in SISO systems. Proper relationships for the analysis of feedforward–feedback control systems show that tuning the feedforward controller is not completely independent from the feedback-loop spectral characteristics. Similarly, fine tune of the associated feedback controlle...

A representation of a class of feedforward neural networks in terms of discrete affine wavelet transforms is developed. It is shown that by appropriate grouping of terms, feedforward neural networks with sigmoidal activation functions can be viewed as architectures which implement affine wavelet decompositions of mappings. It is shown that the wavelet transform formalism provides a mathematical...

Version history v1: Initial upload v2: Added arXiv identification header v3: Several minor changes throughout text, an updated reference, and new typeset. Overhauled section 4. Abstract The rapid-chase theory of response priming defines a set of behavioral criteria that indicate feedforward processing of visual stimulus features rather than recurrent processing. These feedforward criteria are s...

Memories are believed to be encoded by changes in the synaptic connections between neurons. Although many forms of synaptic plasticity have been identified, it remains unknown how such changes affect local circuits. Feedforward inhibitory networks are a common type of local circuitry and occur when principal neurons and their afferent inhibitory interneurons receive the same input. Using slices...

A method for pressure control of self-supplied variable displacement axial piston pumps is considered. By analyzing the mathematical model, a crucial part of the nonlinear system is found to be a piecewise linear function. A control strategy composed of an overall feedforward control and a feedback control is given using the smooth hinge function. Compared with current switching feedforward con...

Design rules for optimal feedforward controllers with lead-lag structure in the presence of measurable disturbances are presented. The design rules are based on stable firstorder models with time delays, FOTD, and are optimal in the sense of minimizing the integratedsquared error. The rules are derived for an open-loop setting, considering a step disturbance. This paper also discusses a general...

This paper rigorously establishes thut standard rnultiluyer feedforward networks with as f&v us one hidden layer using arbitrary squashing functions ure capable of upproximating uny Bore1 measurable function from one finite dimensional space to another to any desired degree of uccuracy, provided sujficirntly muny hidden units are available. In this sense, multilayer feedforward networks are u c...

Abstract--This paper addresses the feedforward/output feedback control problem for single-input singleoutput minimum-phase nonlinear processes. Combination of dynamic feedforward/static state feedback laws and state observers is employed to synthesize nonlinear dynamic feedforward/output feedback controllers that completely eliminate the effect of measurable disturbances and induce a desired in...