Overview of Standards and Technical Reports

Overview of ARIB Standards (STD-B13)

1. Overview

STD Number ARIB STD-B13
Standard Name 800MHz-Band OFDM Transmission System for Television Program Contribution
Enactment Date 06.19.1997
General Description

This standard specifies the television broadcast program digital radio transmission system for the material transmission using OFDM modulation in 800MHz band. The objective of this system is that the program material transmission is smoothly performed.

In addition to the technical standards, this standard is the contents of the combined operation on a standard defined for it is desirable agreed matters.


 Keywords

Keyword Description
OFDM

Orthogonal Frequency Division Multiplex

OFDM is one method for transmitting digitized information. With respect to the conventional method of high-speed modulation of one carrier in all the information, In OFDM, it sends distributes the information to thousands of carriers. In terms of per carrier, since the time for transmitting the mass of 1 or 0 digital data is several thousand times, stronger transmission characteristics to multipath interference is obtained. The appellation is by the mechanism (Orthogonal Multiplexing) for a plurality of carriers no interference with each other.

DQPSK

Differential Quaternary Phase Shift Keying

By transmission by switching the sine waves with different phases, digital modulation scheme to transmit two bits of information. With respect to QPSK to define the criteria of phase by SP, the one before the symbol of each carrier is transmitted to define the phase state of the four types as the basis for the phase.


2. Amendment History

Ver. Amendment or Enactment Date Amendment summary
2.1 11.30.2005 Revised due to the revision of Ordinance Regulating Radio Equipment relating to spurious
2.0 10.12.2000 Arrangement of parameters and additional of compatible provisions between manufacturers
1.0 06.19.1997 Enactment

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