A method for locating at least two electromagnetic pulse emission sources in an environment, the environment comprising at least two reflectors, the method comprising:
- receiving, by a detector, for each source to be located, at least one same emitted pulse, received on the one hand directly from the source and received on the other hand by reflection on one of the reflectors,
- measuring a arrival direction, a date of arrival, a power and at least one invariant technical characteristic of each received pulse,
- identifying direct subsets and reflected subsets, each direct subset comprising pulses received directly from a same source to be located, each reflected subset comprising pulses emitted by a same source to be located and received after reflection on a same reflector,
- grouping by pairs of direct subsets with reflected subsets, the pulses of the subsets of each pair having the same invariant technical characteristics,
- calculating, for each pair, differences in dates of arrival between the pulses of the reflected subset and the pulses of the direct subset of the pair,
- determining a distance of each source from the detector from calculated differences in dates of arrival of the pulses of each pair, and
- determining the location of each source based on the arrival directions and the distance corresponding to the source as determined by the grouping,
- wherein the identifying comprises:
- regrouping received pulses with same invariant technical characteristics and same directions of arrival into subsets,
- determining a maximum power of the pulses of each subset and a number of pulses of each subset,
- for each subset, when a first condition is met, then the subset comprises pulses received directly, the first condition stipulating that the maximum power determined for the subset is greater than or equal to a first predetermined power threshold and the number of pulses determined for the subset is equal to a maximum number of pulses from among the number of pulses of the subsets with same invariant technical characteristics as the subset irrespective of the direction of arrival of the subsets, and
- for each subset, when a second condition is met, then the pulses of the subset are identified as received reflected, the second condition stipulating that the maximum power determined for the subset is strictly less than a second predetermined power threshold and the number of pulses determined for the subset is strictly less than the maximum number of pulses from among the number of pulses of the subsets with same invariant technical characteristics as the subset irrespective of the direction of arrival of the subsets.