Title :
Synthesis of 2-D linear phase digital filters
Author :
Gu, Guoxiang ; Shenoi, B.A. ; Zhang, Cailong
Author_Institution :
Dept. of Electr. Eng., Wright State Univ., Dayton, OH, USA
fDate :
12/1/1990 12:00:00 AM
Abstract :
The synthesis of two-dimensional (2-D) linear-phase digital filters is studied in terms of approximation of 2-D transfer functions. A convergence result is established for the approximation of nonrational 2-D transfer functions under a certain mild frequency domain condition. It is shown that the synthesis of 2-D linear-phase FIR (finite impulse response) digital filters can be transformed into an equivalent approximation for which the convergence condition is satisfied. A 2-D linear-phase IIR (infinite impulse response) digital filter is then synthesized based on an FIR model. Several examples are given to illustrate the synthesis technique
Keywords :
convergence; filtering and prediction theory; network synthesis; transfer functions; two-dimensional digital filters; 2D transfer functions; FIR model; IIR filter; convergence; equivalent approximation; finite impulse response; frequency domain condition; infinite impulse response; linear phase digital filters; synthesis technique; Chebyshev approximation; Convergence; Digital filters; Finite impulse response filter; Fourier series; Frequency domain analysis; Passband; Singular value decomposition; Transfer functions; Two dimensional displays;
Journal_Title :
Circuits and Systems, IEEE Transactions on
