The decoding method to which the present invention relates takes into account: at least one predetermined polynomial, and a received sequence r capable of being the result of the coding of a sequence of information symbols of polynomial representation u(x) representing a physical quantity, the coding including a turbocoding, and guaranteeing the divisibility of a sequence to be turbocoded, a(x) representing the sequence u(x), by each predetermined polynomial, This method includes: an operation of turbodecoding (601) the received sequence r into an estimated sequence â, at least one operation of calculating the remainder (602, 606) of the division of the polynomial representation â(x) of the estimated sequence â, by a said predetermined polynomial.