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ROLL-OFF PERIOD DETECTING METHOD, SYMBOL STARTING POINT DETECTING METHOD, FRACTIONAL FREQUENCY OFFSET ESTIMATING METHOD, AND OFDM DOWNSTREAM SYSTEM THEREOF
ROLL-OFF PERIOD DETECTING METHOD, SYMBOL STARTING POINT DETECTING METHOD, FRACTIONAL FREQUENCY OFFSET ESTIMATING METHOD, AND OFDM DOWNSTREAM SYSTEM THEREOF
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机译:滚转周期检测方法,符号起始点检测方法,分数频率偏移估计方法及其OFDM下流系统
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摘要
Disclosed are a roll-off period detection method, a symbol starting point detection method, a fractional frequency offset estimating method, and an OFDM downstream system using the same. A method of detecting a roll-off period in an OFDM downstream system according to an embodiment of the present disclosure may include: generating a temporary roll-off period by applying a windowing function to a signal having a preset length; and detecting a roll-off period based on any one of a cross correlation and a sum of differences between a detection target signal included in a range of two OFDM symbol signals based on a detection starting point, and the temporary roll-off period.
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