FIR half-band bandpass filters

Author

Fliege, Norbert

Author_Institution

Tech. Univ. of Hamburg, Germany

fYear

1991

fDate

11-14 Jun 1991

Firstpage

256

Abstract

A new class of half-band bandpass (HB²P) filters with a conjugate symmetry with respect to the normalized half-band frequency Ω=π/2 is introduced. They serve as a model for describing interchannel interference (ICI) in inside-out DFT (discrete Fourier transform) polyphase filter banks. These filter banks constitute a general structure for multicarrier data transmission systems. An analysis of the crosstalk impulse response leads to an analytic HB²P filter with a real part consisting of zero-valued coefficients for all odd indexes and an imaginary port consisting of zero-valued coefficients for all even indexes. These special properties are to be used for avoiding ICI in multicarrier data transmission systems

Keywords

crosstalk; digital filters; filtering and prediction theory; interference suppression; DFT polyphase filter banks; FIR filters; conjugate symmetry; crosstalk impulse response; discrete Fourier transform; half-band bandpass filters; interchannel interference; multicarrier data transmission systems; zero-valued coefficients; Band pass filters; Crosstalk; Data communication; Filter bank; Finite impulse response filter; Frequency response; Image analysis; Interchannel interference; Prototypes; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1991., IEEE International Sympoisum on

Print_ISBN

0-7803-0050-5

Type

conf

DOI

10.1109/ISCAS.1991.176322

Filename

176322