Digital frequency conversion technique in HDTV

Author

Bo, Ai ; Hua, Ge Jian ; Yong, Wang ; Gang, Liu ; Pei, Liu

Author_Institution

Nat. Key Lab. of Integrated Service Networks, Xidian Univ., Xi´´an, China

Volume

2

fYear

2003

fDate

14-17 Dec. 2003

Firstpage

1246

Abstract

This paper makes a research on the fundamental principle of digital modulation and frequency conversion in broad band digital broadcasting terrestrial TV ( BDB-T) system. Different from conventional down-conversion technique, this paper proposes a new digital down-conversion model utilizing Hilbert transform and a method eliminating the A/D DC offset in this model is also proposed. The correspondent FPGA hardware though testing process in HDTV prototype proves the efficiency and good performance of the model and the new method.

Keywords

Hilbert transforms; OFDM modulation; digital video broadcasting; field programmable gate arrays; high definition television; A/D DC offset elimination; FPGA hardware; HDTV; Hilbert transform; broad band digital broadcasting terrestrial TV system; digital down conversion model; digital frequency conversion; digital modulation; down conversion technique; field programmable gate arrays; high definition television; Bandwidth; Clocks; Digital modulation; Field programmable gate arrays; Frequency conversion; HDTV; Hardware; OFDM modulation; Signal sampling; TV;

fLanguage

English

Publisher

ieee

Conference_Titel

Neural Networks and Signal Processing, 2003. Proceedings of the 2003 International Conference on

Conference_Location

Nanjing

Print_ISBN

0-7803-7702-8

Type

conf

DOI

10.1109/ICNNSP.2003.1281096

Filename

1281096