Entzerrung eines verteilten Pilot-OFDM-Signals

Details

Veröffentlichungs-Nr.

EP2693713

Aktenzeichen

EP13173786

Anmeldetag

26. Juni 2013

Veröffentlichung

7. August 2019

Erteilung

7. August 2019

Rechtsraum

EP

IPC

H04L25/03H04L27/26H04L25/02

Abstract

A technique for equalizing a distributed pilot OFDM signal with decision feedback involves correlating a received OFDM signal against a pilot reference to obtain a coarse channel estimate, where the received OFDM signal includes a distributed pilot signal and an OFDM data signal. The received OFDM signal is equalized based on the coarse channel estimate and the distributed pilot signal is removed to generate a coarse data signal estimate. The coarse data signal estimate is removed from the received OFDM signal using the coarse channel estimate to generate a residual pilot signal. The residual pilot signal can then be correlated against the pilot reference to obtain a fine channel estimate. The received OFDM signal is equalized based on the fine channel estimate, and the distributed pilot signal is removed to produce a fine data signal estimate from which data is recoverable.

Anmelder

Firmen

Harris Global Communications, Inc.
Exelis Inc.
Exelis, Inc.

Land

🇺🇸 USA

Fachgebiete