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APPARATUS AND METHOD FOR SENSING AN ATSC SIGNAL IN LOW SIGNAL-TO -NOISE RATIO
APPARATUS AND METHOD FOR SENSING AN ATSC SIGNAL IN LOW SIGNAL-TO -NOISE RATIO
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机译:在低信噪比中感测atsc信号的装置和方法
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摘要
A Wireless Regional Area Network (WRAN) receiver comprises a transceiver for communicating with a wireless network over one of a number of channels, and a signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which an Advanced Television Systems Committee (ATSC) signal was not detected. The WRAN receiver performs a method comprising the steps of: dividing a total observation time looking for an ATSC data segment sync signal into multiple slices; computing at least one statistic for each slice; computing at least one overall statistic from the statistics computed for each slice; determining if the at least one overall statistic is greater than a threshold; and if the overall statistic is greater than the threshold, determining that an ATSC signal is present, otherwise, determining that an ATSC signal is not present.
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