下载
下载

下载手册、产品技术资料、软件等:

下载类型
型号或关键字

What is the modulation technique used for digital terrestrial TV in Europe+ Japan and Australia?

问题:

What is the modulation technique used for digital terrestrial TV in Europe+ Japan and Australia?

答案:

Orthogonal frequency domain multiplex (OFDM) was first promoted in the early 1990s as a wireless LAN technology. OFDM's spread spectrum technique distributes the data over a large number of carriers that are spaced apart at precise frequencies. This spacing provides the "orthogonality" in this technique which prevents the demodulators from seeing other frequencies than their own. Coded OFDM (COFDM) adds forward error correction to the OFDM method.


此常见问题适用于:

产品系列: MPEG 软件 MPEG 分析仪

产品:

常见问题 ID 53531

查看所有常见问题 »