Publications

Anderson, B & Doan, H 1977, 'Design procedure for stable suboptimal fixed-lag smoothers', IEEE Transactions on Automatic Control, vol. 22, no. 6, pp. 949-952.
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A procedure is presented for designing stable suboptimal fixed-lag smoothers for the continuous-time linear Gaussian problem. Apart from incorporating an ideal delay, the smoothers are finite-dimensional. The design procedure involves the approximation by a very straightforward procedure of a matrix impulse response of compact support by a matrix impulse response with a rational and stable Laplace transform. The approximation procedure involves studying the pole-zero pattern of transfer functions derivable from the transfer function matrix being approximated. Copyright © 1977 by The Institute of Electrical and Electronics Engineers, Inc.