Experiences in Establishing a Digital Transmission and Performance Verification of an OFDM Transmitter

With the advent of digital terrestrial television broadcasters and equipment manufacturers alike are facing new challenges. Although the ETSI standard very precisely defines the coding and modulation to be employed for the C-OFDM principle for TV transmission, a number of choices in the design of transmitter system are still left open. This paper deals with a number of these; in particular emphasis is placed on solutions chosen for easy and flexible interfacing between the various processing units in a TV transmitter. Solutions to both multi and single frequency network operation are presented. Also discussed is the interface to a high power transmitter where a/o, linearity, filtering and pre-correction are subjects for discussion. Finally a number of test methods and associated test signals are suggested suitable for verification of the performance of the TV transmitter.

Published

1999-07

Content type

Original Research

DOI

10.5594/M001169

ISBN

978-1-61482-948-5