Title :
2-D linear phase frequency sampling filters and 2-D linear phase frequency sampling filters with fourfold symmetry
Author :
Stubberud, Peter A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nevada Univ., Las Vegas, NV, USA
Abstract :
In this paper, a system function is developed for two dimensional (2-D) Type 2-2 frequency sampling filters that have real impulse responses and linear phase and for 2-D Type 2-2 frequency sampling filters that have real impulse responses, linear phase and fourfold symmetry. Under certain conditions, these frequency sampling filters can implement narrowband 2-D linear phase filters and narrowband 2-D linear phase filters with fourfold symmetry much more efficiently than direct convolution implementations
Keywords :
FIR filters; delay circuits; frequency response; signal sampling; transient analysis; transient response; two-dimensional digital filters; 2-D linear phase frequency sampling filters; 2-D signal processing; FIR filter; arbitrary frequency response; fourfold symmetry; narrowband 2-D linear phase filters; nonrecursive comb filter; real impulse responses; system function; two dimensional Type 2-2 frequency sampling filters; Band pass filters; Convolution; Ear; Frequency; Image sampling; Narrowband; Nonlinear filters; Passband; Sampling methods; Two dimensional displays;
Conference_Titel :
Circuits and Systems, 1996. ISCAS '96., Connecting the World., 1996 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3073-0
DOI :
10.1109/ISCAS.1996.541720
