ETSI EN 302 755

ETSI EN 302 755 describes a second generation baseline transmission system for digital terrestrial televisionbroadcasting. It specifies the channel coding/modulation system intended for digital television services and generic datastreams.

The scope is as follows:

• it gives a general description of the Baseline System for digital terrestrial TV;
• it specifies the digitally modulated signal in order to allow compatibility between pieces of equipmentdeveloped by different manufacturers. This is achieved by describing in detail the signal processing at themodulator side, while the processing at the receiver side is left open to different implementation solutions.

However, it is necessary in this text to refer to certain aspects of reception.

Versions 1.1.1 and 1.2.1 of the present document [i.7] and [i.8] defined a single profile which incorporates time-slicingbut not time-frequency-slicing (TFS). Features which would allow a possible future implementation of TFS (forreceivers with two tuners/front-ends) can be found in annex E. It is not intended that a receiver with a single tunershould support TFS.

Version 1.3.1 of the present document [i.9] added a T2-Lite profile. This profile is intended to allow simpler receiverimplementations for very low capacity applications such as mobile broadcasting, although it may also be received byconventional stationary receivers. The details of this T2-Lite profile are described in annex I. Version 1.3.1 of thepresent document [i.9] also introduces a name, which is ‘T2-base profile’, for the previous single profile.

Version 1.4.1 (the present document) made a number of changes, but all of these are clarifications of particular points,changes in non-normative recommendations, and corrections to the wording; no new technical features have been addedand no changes have been made to existing features.

Edition:

1.4.1

Published:

07/01/2015

Number of Pages:

188

File Size:

1 file , 1.9 MB

Note:

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