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A new synchronous watermark data insertion method for ATSC transmission systems

机译:一种用于ATSC传输系统的同步水印数据插入新方法

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In this paper, a new synchronous insertion method of the uniquely assigned RF watermark data into ATSC transmitters and translators is proposed. Watermark data is generated, VSB filtered and up-converted to the same IF or RF frequency with the target transmission system. Frequency and timing of the generated RF watermark data are synchronized with the target system by extracting synchronization information from the exciter module of the target system. The generated synchronized RF watermark signal is combined with the output signal of the exciter of target transmitter at the level of the designated bury ratio. Performance of the proposed method is evaluated and compared with the conventional RF watermark insertion method through computer simulations.
机译:本文提出了一种新的同步分配方法,将唯一分配的RF水印数据插入ATSC发送器和翻译器中。生成水印数据,对其进行VSB滤波并与目标传输系统上变频为相同的IF或RF频率。通过从目标系统的激励器模块中提取同步信息,可以将生成的RF水印数据的频率和时序与目标系统同步。生成的同步RF水印信号与目标发射器的激励器的输出信号以指定的掩埋比水平组合在一起。通过计算机仿真,评估了该方法的性能,并将其与传统的RF水印插入方法进行了比较。

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