Method and apparatus for demodulating a multicarrier signal, taking a channel response estimate and an estimate of white frequency distortion into account

Abstract

Abstract The method involves receiving a signal (41) which is then down-converted (42), filtered (44) and sampled (45) for a phase and quadrature component generator (46). A fast Fourier transform (48) precedes demodulation (410) and channel decoding (414) using weighted phase estimates from time- and frequency-filtered pilot signals. For each symbol and carrier, a quantity is determined which represents an estimate of transmission channel response in terms of indices of the instant of transmission and carrier frequency. For each time interval, an estimate is obtained of the white noise frequency. Each symbol to be demodulated is divided by these two estimates.

Inventors

• 👤 Bertrand Sueur
• 👤 Pierre Combelles

Bibliographic Details