Multiple hypothesis channel estimation and prediction for...

Pulse or digital communications – Receivers – Particular pulse demodulator or detector

Reexamination Certificate

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C375S350000

Reexamination Certificate

active

10892836

ABSTRACT:
A method of modeling channel parameters in Doppler environments estimates both the channel model and the coefficients simultaneously, thus not requiring additional packet overhead. This adaptive technique refines the channel coefficients as the estimate of the model accuracy improves with channel measurements. The underlying models are very accurate representations of Jakes models because they are computed off-line, thus the error prone approaches of trying to estimate one model from the observations are avoided.

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patent: 7061882 (2006-06-01), Abrishamkar et al.
patent: 7096274 (2006-08-01), Ci et al.
patent: 2006/0047842 (2006-03-01), McElwain
“Multiple Hypothesis Channel Estimation for the MIMO-OFDM System”, Kyeong Jin Kim et al., IEEE Communications Society, 2004, pp. 2674-2678.
“Blind Estimation And Equalization Of Time-Varying Channels Using The Interacting Multiple Model Estimator”, Ziauddin M. Kamran, et al., IEEE 2004, pp. V-17-V20.
“IMM-Based Estimation for Slowly Evolving Environments,” N.S. Kim, IEEE Signal Processing Letters, vol. 5, No. 6, Jun. 1998.

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