© The Institution of Electrical Engineers
The implementation of the decomposition of linear discrete-time multivariable problems through either singular values/principal directions, or eigenvalues/eigenvectors is inherently anti-causal. One way to avoid this is to introduce a ‘pseudodelay’ into the controller, but this is undesirable. Here the problem is examined in the scalar case, and a new algorithm proposed which deploys a kernel to characterise all the available degrees of freedom, and thus overcome completely the problems of delay and anticausality.
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http://iet.metastore.ingenta.com/content/journals/10.1049/ip-d.1993.0017
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