Abstract: A method for the verification of anti-jamming in a communications system comprises several sensors or adaptive antennas, comprising at least the following steps: estimating the mean power ?;^y of the output of the communications system, estimating the respective power values Pu or P?u, of a station u, the antenna noise Pa or P?a, the thermal noise PT, or P?T, estimating at least one of the following ratios: J tot ? / ? S tot = ( ? p = 1 P ? P p ) ? / ? ( ? u = 1 U ? P u ) J tot ? / ? S u = ( ? p = 1 P ? P p ) ? / ? P u J u ? / ? S u = ( ? p = 1 P ? P pu ) ? / ? P u comparing at least one of the three ratios with a threshold value.

Abstract: A method for the verification of anti-jamming in a communications system comprises several sensors or adaptive antennas, comprising at least the following steps: estimating the mean power ?;ˆy of the output of the communications system, estimating the respective power values Pu or P?u, of a station u, the antenna noise Pa or P?a, the thermal noise PT, or P?T, estimating at least one of the following ratios: J tot ? / ? S tot = ( ? p = 1 P ; ; P p ) ? / ? ( ? u = 1 U ; ; P u ) J tot ? / ? S u = ( ? p = 1 P ; ; P p ) ? / ? P u J u ? / ? S u = ( ? p = 1 P ; ; P pu ) ? / ? P u comparing at least one of the three ratios with a threshold value.

Abstract: A system for analyzing interference caused by neighboring cells in a cellular communication system. A multipath synchronization is performed on the learning sequences of the beacon frequencies in order to determine the number of base stations using the analysis frequency as a beacon frequency. The identifiers of the base stations which are transmitting the beacon frequencies on which a synchronization has been made are demodulated after spatial filtering. A multipath synchronization is performed on learning sequences of the traffic frequencies so as to determine the number of base stations using the analysis frequency as a traffic frequency.