DVB—H已经将分层调制（Hierarchical Modulation）作为了技术选项，而 DTMB目前尚不支持。 DVB—H等系统允许通过分层调制在同一信道中传输优先级不同的两个视频流，其比特 率和性能...
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Cooperation with hierarchical modulation can employ broadcasting characteristics of wireless channel and location advantage of relay node to confront fading.
基于分级调制的中继协作技术可以很好地利用无线信道的广播特性和中继节点的位置优势来对抗信道衰落。
In order to cut down the power consumption of LCD backlight and maintain the image quality, a modulation algorithm that based on hierarchical tone mapping for LED backlight is proposed.
为了节省液晶显示器背光功耗的同时保持图像质量，提出了基于分层色调映射的LED背光调制算法。
The system also supports two level hierarchical channel coding and modulation, including uniform and multiresolution constellation.
系统还支持两层次式通道编码与调变，包括均匀与多分辨率群集。
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