Receiver (100; 230; 900) for receiving a combination signal that comprises two separate signal portions whose impulses are shifted with respect to each other and/or whose carrier oscillations comprise a phase difference, wherein the receiver comprises a filter (110; 910) matched to a transmission impulse shape of the impulses of at least one of the signal portions, and wherein the receiver is configured to set sampling instants at which an output signal of the filter is sampled such that an output signal portion of the filter based on one of the signal portions is sampled essentially free of intersymbol interference; wherein the receiver is configured to determine probabilities ( p 1 i [ k]) of transmission symbols of a first signal portion for a plurality of sampling instants ( k); wherein the receiver is configured to determine a probability density function ( p N 2 ( n, k)) of a disturbance affecting a detection of transmission symbols of the second signal portion, taking into account the probabilities of transmission symbols of the first signal portion; wherein the receiver is configured to determine a probability density function ( p N 1 ( n, k)) of a disturbance affecting a detection of transmission symbols of the first signal portion, taking into account: - the probability density function ( p N 2 ( n, k)) of a disturbance affecting a detection of transmission symbols of the second signal portion, and - the sample values (y[k]), and - information about intersymbol interference properties; and wherein the receiver is configured to determine, on the basis of sample values and the probability density function ( p N 1 ( n, k)) of a disturbance affecting a detection of transmission symbols of the first signal portion, updated probabilities ( p 1 i [ k]) of transmission symbols of the first signal portion for a plurality of sampling instants ( k); and wherein the receiver is configured to determine, on the basis of an end probability density function, transmission symbols of the first signal portion and/or of the second signal portion; wherein the receiver is configured to determine the probability density function ( p N 2 ( n, k)) of a disturbance affecting a detection of transmission symbols of the second transmission signal portion as a sum of probability density functions of a presumed noise disturbance, and wherein the receiver is configured to select, according to transmission symbols of the first signal portion, mean values of probability density functions of a noise disturbance that contribute to the sum of probability density functions, and wherein the receiver is configured to weight, with probabilities of transmission symbols of the first signal portion, probability density functions of presumed noise disturbances that contribute to the sum of probability densities. wherein the receiver comprises a filter (110; 910) matched to a transmission impulse shape of the impulses of at least one of the signal portions, and wherein the receiver is configured to set sampling instants at which an output signal of the filter is sampled such that an output signal portion of the filter based on one of the signal portions is sampled essentially free of intersymbol interference; wherein the receiver is configured to determine probabilities ( p 1 i [ k]) of transmission symbols of a first signal portion for a plurality of sampling instants ( k); wherein the receiver is configured to determine a probability density function ( p N 2 ( n, k)) of a disturbance affecting a detection of transmission symbols of the second signal portion, taking into account the probabilities of transmission symbols of the first signal portion; wherein the receiver is configured to determine a probability density function ( p N 1 ( n, k)) of a disturbance affecting a detection of transmission symbols of the first signal portion, taking into account: - the probability density function ( p N 2 ( n, k)) of a disturbance affecting a detection of transmission symbols of the second signal portion, and - the sample values (y[k]), and - information about intersymbol interference properties; and - the probability density function ( p N 2 ( n, k)) of a disturbance affecting a detection of transmission symbols of the second signal portion, and - the sample values (y[k]), and - information about intersymbol interference properties; and wherein the receiver is configured to determine, on the basis of sample values and the probability density function ( p N 1 ( n, k)) of a disturbance affecting a detection of transmission symbols of the first signal portion, updated probabilities ( p 1 i [ k]) of transmission symbols of the first signal portion for a plurality of sampling instants ( k); and wherein the receiver is configured to determine, on the basis of an end probability density function, transmission symbols of the first signal portion and/or of the second signal portion; wherein the receiver is configured to determine the probability density function ( p N 2 ( n, k)) of a disturbance affecting a detection of transmission symbols of the second transmission signal portion as a sum of probability density functions of a presumed noise disturbance, and wherein the receiver is configured to select, according to transmission symbols of the first signal portion, mean values of probability density functions of a noise disturbance that contribute to the sum of probability density functions, and wherein the receiver is configured to weight, with probabilities of transmission symbols of the first signal portion, probability density functions of presumed noise disturbances that contribute to the sum of probability densities.