Estimation Rate Comparison
ATSC Equaliser is updated every 24 ms (~260 000 symbols)
DVB-T Equaliser is updated every symbol period (256 us). 1/12 of data carriers are pilots
DVB-T Full Channel estimate is available every 4 symbols (1.024 ms)
For a varying transmission channel DVB-T estimation is at least 23.5 times faster than ATSC