Authors:
Jingxin Zhang,
Cishen Zhang,
Volume: 1, Page 181 Paper number 9054
Abstract:
This paper investigates signal reconstruction in the multirate filter
bank systems with noisy subband paths. It casts the problem of signal
reconstruction into a problem of mixed H_2/H_(infinity) control, and
uses the standard results of mixed H_2/H_(infinity) synthesis to design
an IIR synthesis filter bank.
Authors:
John Anthony Rossiter,
Basil Kouvaritakis,
L Huaccho Huatuco,
Volume: 1, Page 183 Paper number 8018
Abstract:
Traditionally, predictive control is understood to rely on accurate
predictions in order to give good control. Here it is shown that in
fact one can bypass the prediction model altogether and go straight
to an implicit model which represents the parameters of the objective
function to be minimised. This is demonstrated to have significant
advantages.
Authors:
Stijn de Waele,
Piet M.T. Broersen,
Volume: 1, Page 189 Paper number 1110
Abstract:
Time series analysis is reformulated to allow processing of segmented
data. This involves the reformulation of parameter estimation and order
selection. Parameter estimation for autoregressive (AR) models is done
by fitting a single model to all segments simultaneously. Parameter
estimation for moving average (MA) and the combined ARMA models can
be derived entirely from long autoregressive models. The finite sample
theory required for order selection of AR models has be generalized
to segments of data. The resulting algorithm can also deal effectively
with segments of unequal length.
Authors:
Peter W. Gibbens,
Gamini M.W.M. Dissanayake,
Hugh F. Durrant-Whyte,
Volume: 1, Page 191 Paper number 2152
Abstract:
This paper presents a closed form solution to the estimation-theoretic
simultaneous localisation and map building (SLAM) problem. The solution
is obtained by explicit solution of the differential Riccati equation
associated with the n-landmark SLAM problem. The solution describes
and explains the many experimental and theoretical results obtained
so far in the study of the SLAM problem. Further, the solution, for
the first time, allows a precise means of analysing the performance
of different SLAM algorithms and enables the design of efficient SLAM
systems.
Authors:
Eiichi Muramatsu,
Masao Ikeda,
Volume: 1, Page 197 Paper number 2074
Abstract:
A parameter estimation problem is considered for state equations of
linear time-invariant systems. Under a certain condition, it is shown
that the output of the system can be asymptotically described by a
linear combination of output estimates which are generated by suitable
multiple observers. An identification scheme for the weights of the
linear combination is proposed. The obtained weights determine the
parameter values to be estimated.
Authors:
Ragnar Wallin,
Alf J. Isaksson,
Lennart Ljung,
Volume: 1, Page 203 Paper number 1856
Abstract:
Identification experiments are costly for the process industry. Time
when saleable products could have been manufactured is ``wasted'' on
experiments. Having to discard an incomplete data set collected for
identification and do a new experiment is not necessarily an acceptable
option. This paper describes a very simple and intuitive algorithm
to estimate parameters of ARX models from incomplete data sets. An
iterative scheme involving two least squares steps and a bias correction
is all that is needed.
Authors:
Fabrizio Dabbene,
Paolo Gay,
Boris T. Polyak,
Volume: 1, Page 209 Paper number 1066
Abstract:
In robust system identification the measurement errors are usually
assumed to be unknown but bounded, leading to a description of the
model parameters in terms of membership set. Due to the difficulty
to obtain an exact description of this set, in the past several methods
have been proposed for its approximation. In this paper a fast recursive
algorithm for the determination of an inner ellipsoidal approximation
of the membership set is presented.
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