Linear function observer for linear discrete-time systems
A. Nagata, Takuya Nishimura, Masao Ikeda · IEEE Transactions on Automatic Control · 1975
The problem of estimating the value of a linear function of the state deterministically is considered for a finite-dimensional linear time-invariant discrete-time system. A procedure is stated for constructing a minimum-time linear function observer, i.e., an observer which begins to produce the errorless estimate in minimum-time.