Enhanced channel estimator, method of enhanced channel...

Details Enhanced channel estimator, method of enhanced channel... Enhanced channel estimator, method of enhanced channel...

2008-07-01

2008-07-01

Ha, Dac V (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S147000, C375S260000, C455S067110, C455S226100, C370S203000, C370S252000, C370S464000, C370S480000

Reexamination Certificate

active

07394876

ABSTRACT:
The present invention provides an enhanced channel estimator for use with an orthogonal frequency division multiplex (OFDM) receiver employing scattered pilot channel estimates. In one embodiment, the enhanced channel estimator includes a time interpolation estimator configured to provide time-interpolation channel estimates having at least one image for a portion of carriers having the scattered pilot channel estimates. The enhanced channel estimator also includes a frequency interpolation estimator coupled to the time interpolation estimator and configured to provide frequency-interpolation channel estimates for each carrier based on image suppression through balanced-error filtering.

REFERENCES:
patent: 7139536 (2006-11-01), Chiu
patent: 2007/0263752 (2007-11-01), Guey et al.

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