Frequency domain equalizer for wireless commuications system

Details Frequency domain equalizer for wireless commuications system Frequency domain equalizer for wireless commuications system

2008-04-22

2008-04-22

Ghebretinsae, Temesghen (Department: 2611)

Pulse or digital communications

Equalizers

C375S232000, C375S326000, C375S324000

Reexamination Certificate

active

10661147

ABSTRACT:
The present invention relates to wireless communications and is particularly applicable to devices and modules for correcting errors introduced to a wireless signal after its transmission. An equalizer is provided which compensates for undesirable effects on received radio signals introduced by either signal processing or by the transmission medium. In operation, the equalizer multiples the complex received signal with a complex corrective signal that compensates for these effects. A tap corrective signal corrects for time-varying channel effects (i.e. channel distortions), a timing tracking signal corrects for carrier frequency offset errors, and a phase tracking signal corrects for sampling frequency offset errors.

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