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- Publications
- Influence

Source localization in reverberant environments: modeling and statistical analysis

- T. Gustafsson, B. Rao, M. Trivedi
- Computer Science
- IEEE Trans. Speech Audio Process.
- 1 November 2003

Room reverberation is typically the main obstacle for designing robust microphone-based source localization systems. The purpose of the paper is to analyze the achievable performance of acoustical… Expand

Recursive subspace identification of linear and non-linear Wiener state-space models

- M. Lovera, T. Gustafsson, M. Verhaegen
- Mathematics, Computer Science
- Autom.
- 1 November 2000

The MOESP class of identification algorithms are made recursive on the basis of various updating schemes for subspace tracking

Instrumental variable subspace tracking using projection approximation

- T. Gustafsson
- Computer Science, Mathematics
- IEEE Trans. Signal Process.
- 1 March 1998

Subspace estimation plays an important role in, for example, sensor array signal processing. Recursive methods for subspace tracking with application to nonstationary environments have also drawn… Expand

Recursive System Identification Using Instrumental Variable Subspace Tracking

- T. Gustafsson
- Mathematics
- 1 July 1997

Abstract In this paper a recursive instrumental variable (IV) based subspace identification algorithm is proposed. The basic idea of the algorithm is to utilize the close relationship with sensor… Expand

Subspace identification using instrumental variable techniques

- T. Gustafsson
- Computer Science, Mathematics
- Autom.
- 1 December 2001

Subspace-based algorithms for system identification have lately been suggested as alternatives to more traditional techniques. Variants of the MOESP type of subspace algorithms are in addition to… Expand

A novel algorithm for recursive instrumental variable based subspace identification

- T. Gustafsson, M. Lovera, M. Verhaegen
- Computer Science
- Proceedings of the 37th IEEE Conference on…
- 16 December 1998

The problem of MIMO recursive identification is considered within the framework of subspace model identification (SMI). In this paper the use of recent signal processing algorithms for the recursive… Expand

Subspace-based system identification: weighting and pre-filtering of instruments

- T. Gustafsson
- Mathematics, Computer Science
- Autom.
- 1 March 2002

Subspace-based system identification is typically based on an estimate of the extended observability matrix. It is thus of great interest to investigate, and also optimize, the estimate of the… Expand

Statistical analysis of subspace-based estimation of reduced-rank linear regressions

- T. Gustafsson, B. Rao
- Mathematics, Computer Science
- IEEE Trans. Signal Process.
- 2002

A number of signal processing and system identification problems include linear regressions with a reduced-rank regression matrix. A typical step in "subspace-based" algorithms is to apply the… Expand

Estimation of acoustical room transfer functions

- T. Gustafsson, J. Vance, H. Pota, B. Rao, M. Trivedi
- Computer Science
- Proceedings of the 39th IEEE Conference on…
- 12 December 2000

Presents a method to obtain room transfer functions for applications in the design of intelligent systems for video conferencing. In these applications the acoustical dynamics, for example, affects… Expand

Non-linear instantaneous least squares and its high SNR analysis

- Jakob Ängeby, M. Viberg, T. Gustafsson
- Mathematics, Computer Science
- IEEE International Conference on Acoustics…
- 15 March 1999

A novel approach for signal parameter estimation, named the non-linear instantaneous least squares (NILS) estimator, is proposed and a high SNR statistical analysis of the estimates is presented. The… Expand