Methods, circuits and computer program products for estimating frequency domain channel in a DVB-T receiver using transform domain complex filtering

摘要

A method for performing channel estimation in a receiver of a digital terrestrial television system can be provided by interpolating a complex signal in a frequency domain using a complex filter. The interpolation can be provided, for example, by interpolating, in the time domain, a fast fourier transformed orthogonal frequency division multiplexing (OFDM) signal and interpolating, in a frequency domain, a complex OFDM signal using the complex filter with a predetermined bandwidth. Related equalizers and computer program products are also disclosed.