In this paper, we consider data driven control of Hammerstein systems. For such systems a common structure is transfer function followed by static output nonlinearity that tries to cancel the input system, which modeled as polynomial or piece-wise linear function. The part controller used achieve desired disturbance rejection and tracking properties. To design controller, propose weighted avera...

In a number of vibration applications, systems under study are slightly non-linear. It is thus of great importance to have a way to model and to measure these non-linearities in the frequency range of use. Cascade of Hammerstein models conveniently allows one to describe a large class of non-linearities. A simple method based on a phase property of exponential sine sweeps is proposed to identif...

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Mei Yen Cheong Name of the doctoral dissertation Development of digital predistorters for broadband power amplifiers in OFDM systems using the simplicial canonical piecewise linear function Publisher School of Electrical Engineering Unit Department of Signal Processing and Acoustics Series Aalto University publication series D...

In this article, a new approach based on blockoriented nonlinear models for modeling and identification of aircraft nonlinear dynamics has been proposed. Some of the block-oriented nonlinear models are considered as flexible structures which are suitable for the identification of widely applicable dynamic systems. These models are able to approximate a wide range of system dynamics. Flying vehi...

Block-oriented nonlinear models are popular in nonlinear modeling because of their advantages to be quite simple to understand and easy to use. To increase the flexibility of single branch block-oriented models, such as Hammerstein, Wiener, and WienerHammerstein models, parallel block-oriented models can be considered. This paper presents a method to identify parallel Wiener-Hammerstein systems...

In this paper, we address a novel approach to identify a nonlinear dynamic system for a Hammerstein model. The Hammerstein model is composed of a nonlinear static block in series with a linear dynamic system block. The aim of system identification here is to provide the optimal mathematical model of both nonlinear static and linear dynamic system blocks in some appropriate sense. In this paper,...

In this paper, we present a novel nonlinear digital self-interference canceller algorithm, its implementation details on software-defined radio (SDR) platform, and performance results of real-time full-duplex experiments both device link level. The algorithm is based an augmented Hammerstein model, with part modeling the transmitter non-idealities followed by linear filter to model (SI) channel...