OFDM是一种新型的调制方式，称为正交频分复用。阐述了OFDM的原理、系统组成和 优良性质及其在数字电视传输和混合光纤电缆网(HF，C)中的应用。 -OFDM is a new type of modulation is called orthogonal frequency division multiplexing. OFDM on the principles of good composition and the nature of the system and its appl

主流的视频编码标准MPEG-4为混合编码框架，适用于不同的视频应用领域-Mainstream video coding standard MPEG-4 hybrid coding framework, suitable for different video applications