Digital filter design for a PAL TV modulator

Author

Yli-Kaakinen, Juha ; Hu, Ming ; Kupiainen, Teerrru ; Renfors, Murkku

Author_Institution

Dept. of Inf. Technol., Tampere Univ. of Technol., Finland

Volume

1

fYear

1999

fDate

1999

Firstpage

249

Abstract

This paper develops a baseband digital filter design for the Vestigial SideBand (VSB) filtering required in the traditional analog TV transmission system, PAL. In this application, a filter with a relatively narrow passband and steep transition band is needed. Furthermore, the group delay specifications for the filter are demanding. An efficient solution satisfying the amplitude response specifications is developed based on Nth-band filters, which can be either of the FIR or the IIR type. The group delay response specifications can be satisfied by using either linear-phase FIR filters or approximately linear-phase IIR Nth-band filters. The latter approach seems to be more efficient for this application and is developed further

Keywords

FIR filters; IIR filters; application specific integrated circuits; circuit optimisation; delays; integrated circuit design; linear phase filters; video signal processing; ASIC; FIR type; IIR type; Nth-band filters; PAL TV modulator; amplitude response specifications; analog TV transmission system; approximately linear-phase IIR Nth-band filters; baseband digital filter design; digital filter design; filter optimization; group delay response; group delay specifications; linear-phase FIR filters; narrow passband; steep transition band; vestigial sideband filtering; Band pass filters; Baseband; Delay; Digital filters; Digital modulation; Filtering; Finite impulse response filter; IIR filters; Passband; TV;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on

Conference_Location

Pafos

Print_ISBN

0-7803-5682-9

Type

conf

DOI

10.1109/ICECS.1999.812270

Filename

812270