Pulse or digital communications – Receivers – Automatic gain control
Reexamination Certificate
2007-09-04
2011-12-13
Payne, David C. (Department: 2611)
Pulse or digital communications
Receivers
Automatic gain control
C375S340000, C375S260000, C455S101000, C455S232100, C381S107000, C341S118000, C330S279000
Reexamination Certificate
active
08077816
ABSTRACT:
A method of fast predictive automatic gain control is disclosed including estimating channel gain applied to a received signal, predicting channel gain at a subsequent time by applying temporal correlation statistics to the estimated channel gain, determining a predicted receiver gain which reduces variance between the predicted channel gain and a predetermined target power level, and applying the predicted receiver gain to the received signal. The method may include applying linear minimum mean-squared error prediction to the estimated channel gain. The method may include predicting error variance at the subsequent time by applying the temporal correlation statistics to the estimated channel gain and combining the predicted channel gain and the predicted error variance. The method may include estimating channel gain of known pilot symbols, estimating a temporal correlation function using the estimated channel gain, and determining predicted channel gain using the estimated channel gain and the estimated temporal correlation function.
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Dehner Leo G.
McCoy James W.
Wong Ian C.
Freescale Semiconductor Inc.
Kassa Zewdu
Payne David C.
Stanford Gary R.
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