Robust FFT trigger point tracking for echo channels in OFDM...

Details Robust FFT trigger point tracking for echo channels in OFDM... Robust FFT trigger point tracking for echo channels in OFDM...

2008-04-18

2011-12-06

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S343000, C375S355000, C455S065000, C455S296000, C455S506000

Reexamination Certificate

active

08073064

ABSTRACT:
Identifying a trigger point of at least one OFDM decoder includes correlating a first time-domain sample of the at least one OFDM symbol with a second time-domain sample of the at least one OFDM symbol, processing the first time-domain sample and the second time-domain sample in the first moving average filter to determine a channel impulse response, comparing at least one correlation value of a first biggest path in the channel impulse response and a second biggest path in the channel impulse response, and determining a channel length of the channel impulse response based on a time duration of the channel impulse response. The OFDM decoder includes a first moving average filter and a second moving average filter.

REFERENCES:
patent: 6125124 (2000-09-01), Junell et al.
patent: 6192059 (2001-02-01), Karioja et al.
patent: 7177376 (2007-02-01), Atungsiri et al.
patent: 7336598 (2008-02-01), Kakura
patent: 7359314 (2008-04-01), Sakata et al.
patent: 2005/0099936 (2005-05-01), Fujii et al.
patent: 2006/0222099 (2006-10-01), Varadarajan et al.
patent: 2006/0245349 (2006-11-01), Vrcelj et al.
patent: 2007/0092044 (2007-04-01), Wang et al.

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