1. A method for detection of symbols by a receiver, each symbol being transmitted from a transmitter in the form of a succession of pulses representing a predetermined sequence of sent digital values, the sent digital values having respective nominal distributions within each predetermined sequence, the method comprising: receiving, at the receiver, a succession of pulses substantially corresponding to a symbol transmitted from the transmitter; determining a sequence of received digital values corresponding to said received succession of pulses, said received digital values having respective distributions within the determined sequence; and deciding on the symbol received as a function of the determined sequence of received digital values, the decision comprising a weighting of the received digital values of the determined sequence, the weighting chosen so as to restore the respective distributions of the received digital values to the respective nominal distributions of said sent digital values.