Title of article :
Optimizing FIR approximation for discrete-time IIR filters
Y.، Yamamoto, نويسنده , , B.D.O.، Anderson, نويسنده , , M.، Nagahara, نويسنده , , Y.، Koyanagi, نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Finite-impulse response (FIR) filters are often preferred to infinite-impulse response (IIR) filters because of their various advantages in respect of stability, phase characteristic, implementation, etc. This article proposes a new method to approximate an IIR filter by an FIR filter, which directly yields an optimal approximation with respect to the H/sup (infinity)/ error norm. We show that this design problem can be reduced to a linear matrix inequality. We also make a comparison via a numerical example with an existing method, known as the Nehari shuffle.
Journal title :
IEEE Signal Processing Letters