Method for determining data representative of a movement of a communication terminal, called a particle, within a predetermined geographical area, called an area to be mapped, the method comprising: - a phase for obtaining data representative of transmission powers of at least one data transmission signal within said area to be mapped, delivering a set of captured data; - a phase for filtering the data of said set of captured data as a function of at least one predetermined filtering parameter, delivering a set of filtered data; - a phase for using said set of filtered data to compute data representative of at least one movement made by said particle within said area to be mapped which comprises: - a step of obtaining the list of known positions of said particle, said list comprising at least two successive positions; - for each pair of successive positions in said list, a step of computing a sub-path travelled between the two positions of this pair of successive positions, delivering a list of sub-paths; - a step of concatenating the sub-paths in the list of sub-paths to form a global path; said method being characterised in that said step of obtaining the list of known positions of said particle comprises: - a step of determining a set of probable positioning zones of said particle as a function of: - said transmission powers of said set of filtered data associated with the sensors of a sensor array; - a representation of said area to be mapped; - a step of determining at least two probable positions of said particle, at at least two different moments, as a function of a statistical law and/or constraints associated with said area to be mapped, and said set of probable positioning zones. - a phase for obtaining data representative of transmission powers of at least one data transmission signal within said area to be mapped, delivering a set of captured data; - a phase for filtering the data of said set of captured data as a function of at least one predetermined filtering parameter, delivering a set of filtered data; - a phase for using said set of filtered data to compute data representative of at least one movement made by said particle within said area to be mapped which comprises: - a step of obtaining the list of known positions of said particle, said list comprising at least two successive positions; - for each pair of successive positions in said list, a step of computing a sub-path travelled between the two positions of this pair of successive positions, delivering a list of sub-paths; - a step of concatenating the sub-paths in the list of sub-paths to form a global path; said method being characterised in that said step of obtaining the list of known positions of said particle comprises: - a step of determining a set of probable positioning zones of said particle as a function of: - said transmission powers of said set of filtered data associated with the sensors of a sensor array; - a representation of said area to be mapped; - a step of determining at least two probable positions of said particle, at at least two different moments, as a function of a statistical law and/or constraints associated with said area to be mapped, and said set of probable positioning zones. - a step of obtaining the list of known positions of said particle, said list comprising at least two successive positions; - for each pair of successive positions in said list, a step of computing a sub-path travelled between the two positions of this pair of successive positions, delivering a list of sub-paths; - a step of concatenating the sub-paths in the list of sub-paths to form a global path; - a step of determining a set of probable positioning zones of said particle as a function of: - said transmission powers of said set of filtered data associated with the sensors of a sensor array; - a representation of said area to be mapped; - said transmission powers of said set of filtered data associated with the sensors of a sensor array; - a representation of said area to be mapped; - a step of determining at least two probable positions of said particle, at at least two different moments, as a function of a statistical law and/or constraints associated with said area to be mapped, and said set of probable positioning zones.