This is a preview. Log in through your library . Abstract Finite impulse response (FIR) models are among the most basic tools in control theory and signal processing and are routinely used in almost ...

SIAM Journal on Numerical Analysis, Vol. 47, No. 3 (2009), pp. 1619-1650 (32 pages) A rational approximation in a triangle is proposed and analyzed in this paper. The rational basis functions in the ...