Patent ID: 8363536

Claim:
A receiver for receiving an orthogonal frequency division multiplexed (OFDM) digital video broadcast (DVB) signal including OFDM symbol sets including data symbols and scattered pilot symbols transmitted using a plurality of sub-carriers, the OFDM DVB signal being transmitted toward the receiver via a transmission channel, the receiver comprising: an input module configured to receive the OFDM DVB signal via the transmission channel; and a channel estimation module coupled to the input module and configured to calculate channel estimates of the transmission channel by performing Fourier transforms on the OFDM symbol sets to produce transformed symbol sets in the frequency domain and by performing minimum mean square error (MMSE) equalization on the transformed symbol sets using a sub-set of the scattered pilot symbols in the OFDM DVB signal, at least one of the scattered pilot symbols being disposed at different sub-carrier positions in at least two symbol sets, wherein the channel estimation module is configured to perform the channel estimation for a data symbol by summing channel estimates corresponding to each of a respective one of the sub-set of pilot symbols, and where the sub-set of pilot symbols comprises more than two scattered pilot symbols of one OFDM symbol set.