Abstract
In the Advanced Television Systems Committee (ATSC) digital television (DTV) systems, RF watermark technique was introduced to analyze interference among DTV transmitters for single frequency networks (SFN). Recently, there is an increasing interest in employing RF watermark technique for additional data transmission. This paper proposes a selective mapping based RF watermark technique for robust data transmission. Laboratory test results demonstrate that the proposed technique can achieve an enhanced data transmission capability with backward compatibility to legacy DTV receiver.
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