A method for determining monitoring parameters of a set of instantaneous analysis bands IABj in a system comprising at least two objects to monitor and having in memory at least the characteristics of the modes of emission of said objects and at least one receiver comprising at least two reception channels and adapted for receiving and analysing the signals received, characterised in that it has at least the following steps: a) slicing a "monitoring plan" into L instantaneous analysis bands IABj, b) determining the duration of listening T Objecti and determining the revisit time TR Objecti for each of the objects to monitor by using waveform information and network access type which are associated with the objects to monitor and are contained in a technical repository, c) thereafter determining the duration of listening Tj and the revisit time RTj which is optimal for each of said instantaneous analysis bands IABj by using the values of the durations of listening T Objecti and of the revisit times TR Objecti of the objects belonging to said instantaneous analysis bands IABj, d) determining a level of priority for each instantaneous band IABj as a function of the type of network access of the objects belonging to the instantaneous analysis bands IABj, e) when the sum of the durations of listening Tj of the instantaneous analysis bands IABj is lower or equal to each revisit time RTj of the instantaneous analysis bands IABj, determining a temporal scheduling of M instantaneous analysis bands, with M greater than or equal to L, so as to obtain a temporal sequence of the instantaneous analysis bands which is optimal with regards to the durations of listening Tj and the revisit time RTj, and containing the set of L bands, f) when the sum of the durations of listening Tj of the instantaneous analysis bands IABj is greater than at least one of the revisit times RTj of the instantaneous analysis bands IABj, determining two temporal scheduling of M instantaneous analysis bands, with M greater than or equal to L, so as to obtain: • a first sequence which is optimal for the parameter of the duration of listening Tj, wherein each instantaneous analysis bands is revisited a number of time which is egal to its priority, • a second sequence which is optimal for the parameter of the revisit time RTj, wherein the duration of listening of the M instantaneous analysis bands corresponds to a minimum receiver listening value Tmin, the first sequence being implemented over a first reception channel, and the second sequence being implemented over a second reception channel. a) slicing a "monitoring plan" into L instantaneous analysis bands IABj, b) determining the duration of listening T Objecti and determining the revisit time TR Objecti for each of the objects to monitor by using waveform information and network access type which are associated with the objects to monitor and are contained in a technical repository, c) thereafter determining the duration of listening Tj and the revisit time RTj which is optimal for each of said instantaneous analysis bands IABj by using the values of the durations of listening T Objecti and of the revisit times TR Objecti of the objects belonging to said instantaneous analysis bands IABj, d) determining a level of priority for each instantaneous band IABj as a function of the type of network access of the objects belonging to the instantaneous analysis bands IABj, e) when the sum of the durations of listening Tj of the instantaneous analysis bands IABj is lower or equal to each revisit time RTj of the instantaneous analysis bands IABj, determining a temporal scheduling of M instantaneous analysis bands, with M greater than or equal to L, so as to obtain a temporal sequence of the instantaneous analysis bands which is optimal with regards to the durations of listening Tj and the revisit time RTj, and containing the set of L bands, f) when the sum of the durations of listening Tj of the instantaneous analysis bands IABj is greater than at least one of the revisit times RTj of the instantaneous analysis bands IABj, determining two temporal scheduling of M instantaneous analysis bands, with M greater than or equal to L, so as to obtain: • a first sequence which is optimal for the parameter of the duration of listening Tj, wherein each instantaneous analysis bands is revisited a number of time which is egal to its priority, • a second sequence which is optimal for the parameter of the revisit time RTj, wherein the duration of listening of the M instantaneous analysis bands corresponds to a minimum receiver listening value Tmin, the first sequence being implemented over a first reception channel, and the second sequence being implemented over a second reception channel. • a first sequence which is optimal for the parameter of the duration of listening Tj, wherein each instantaneous analysis bands is revisited a number of time which is egal to its priority, • a second sequence which is optimal for the parameter of the revisit time RTj, wherein the duration of listening of the M instantaneous analysis bands corresponds to a minimum receiver listening value Tmin,