A method of positioning a group of subordinate communications units relative to a coordinating communications unit, the group comprising at least first, second, third, and fourth subordinate communications units (10, 20, 30, 40), the coordinating communications unit and the subordinate communications units being movable relative to one another, each communications unit having a UWB transceiver (11, 21, 31, 41, 51) and digital wireless communications means (12, 22, 32, 42, 52), each subordinate unit (10, 20, 30, 40) including an internal clock (15, 25, 35, 45) synchronized with the clock of the coordinating unit in order to define a shared communications period, the method comprising the following steps: • during a preparatory stage, the coordinating unit transmitting to each subordinate unit (10, 20, 30, 40) via the wireless digital communications means (12, 22, 32, 42, 52) a specific identification table (19, 29, 39, 49, 59) comprising an identifier (ID10, ID20, ID30, ID40, ID50), a UWB signature (SIG10, SIG20, SIG30, SIG40, SIG50), and a transmission delay duration (RE10, RE20, RE30, RE40), and communicating, via the wireless digital communications means (12, 22, 32, 42, 52), identification tables (19, 29, 39, 49, 59) for each unit to the other subordinate units (10, 20, 30, 40); and • during an operative stage: • each unit (10, 20, 30, 40, 50) transmitting its UWB signature (SIG10, SIG20, SIG30, SIG40, SIG50), this transmission taking place after the transmission delay duration (RE10, RE20, RE30, RE40) has elapsed as measured from the beginning of the communications period; • each unit (10, 20, 30, 40, 50) analyzing the UWB signatures (SIG10, SIG20, SIG30, SIG40, SIG50) transmitted by the other units (10, 20, 30, 40, 50) and determining the distances (D10-20, D10-30, D10-40, D10-50, D20-10, D20-30, D20-40, D20-50, D30-10, D30-20, D30-40, D30-50, D40-10, D40-20, D40-30, D40-50, D50-10, D50-20, D50-30, D50-40) separating that unit (10, 20, 30, 40, 50) from each of the other units (10, 20, 30, 40, 50); • each subordinate unit (10, 20, 30, 40) transmitting to the coordinating unit the distances (D10-20, D10-30, D10-40, D10-50, D20-10, D20-30, D20-40, D20-50, D30-10, D30-20, D30-40, D30-50, D40-10, D40-20, D40-30, D40-50) between that subordinate unit (10, 20, 30, 40) and each of the other units (10, 20, 30, 40, 50), this transmission taking place by using the wireless digital communications means (12, 22, 32, 42, 52); and • the coordinating unit determining the relative positions of the subordinate units (10, 20, 30, 40). • during a preparatory stage, the coordinating unit transmitting to each subordinate unit (10, 20, 30, 40) via the wireless digital communications means (12, 22, 32, 42, 52) a specific identification table (19, 29, 39, 49, 59) comprising an identifier (ID10, ID20, ID30, ID40, ID50), a UWB signature (SIG10, SIG20, SIG30, SIG40, SIG50), and a transmission delay duration (RE10, RE20, RE30, RE40), and communicating, via the wireless digital communications means (12, 22, 32, 42, 52), identification tables (19, 29, 39, 49, 59) for each unit to the other subordinate units (10, 20, 30, 40); and • during an operative stage: • each unit (10, 20, 30, 40, 50) transmitting its UWB signature (SIG10, SIG20, SIG30, SIG40, SIG50), this transmission taking place after the transmission delay duration (RE10, RE20, RE30, RE40) has elapsed as measured from the beginning of the communications period; • each unit (10, 20, 30, 40, 50) analyzing the UWB signatures (SIG10, SIG20, SIG30, SIG40, SIG50) transmitted by the other units (10, 20, 30, 40, 50) and determining the distances (D10-20, D10-30, D10-40, D10-50, D20-10, D20-30, D20-40, D20-50, D30-10, D30-20, D30-40, D30-50, D40-10, D40-20, D40-30, D40-50, D50-10, D50-20, D50-30, D50-40) separating that unit (10, 20, 30, 40, 50) from each of the other units (10, 20, 30, 40, 50); • each subordinate unit (10, 20, 30, 40) transmitting to the coordinating unit the distances (D10-20, D10-30, D10-40, D10-50, D20-10, D20-30, D20-40, D20-50, D30-10, D30-20, D30-40, D30-50, D40-10, D40-20, D40-30, D40-50) between that subordinate unit (10, 20, 30, 40) and each of the other units (10, 20, 30, 40, 50), this transmission taking place by using the wireless digital communications means (12, 22, 32, 42, 52); and • the coordinating unit determining the relative positions of the subordinate units (10, 20, 30, 40). • each unit (10, 20, 30, 40, 50) transmitting its UWB signature (SIG10, SIG20, SIG30, SIG40, SIG50), this transmission taking place after the transmission delay duration (RE10, RE20, RE30, RE40) has elapsed as measured from the beginning of the communications period; • each unit (10, 20, 30, 40, 50) analyzing the UWB signatures (SIG10, SIG20, SIG30, SIG40, SIG50) transmitted by the other units (10, 20, 30, 40, 50) and determining the distances (D10-20, D10-30, D10-40, D10-50, D20-10, D20-30, D20-40, D20-50, D30-10, D30-20, D30-40, D30-50, D40-10, D40-20, D40-30, D40-50, D50-10, D50-20, D50-30, D50-40) separating that unit (10, 20, 30, 40, 50) from each of the other units (10, 20, 30, 40, 50); • each subordinate unit (10, 20, 30, 40) transmitting to the coordinating unit the distances (D10-20, D10-30, D10-40, D10-50, D20-10, D20-30, D20-40, D20-50, D30-10, D30-20, D30-40, D30-50, D40-10, D40-20, D40-30, D40-50) between that subordinate unit (10, 20, 30, 40) and each of the other units (10, 20, 30, 40, 50), this transmission taking place by using the wireless digital communications means (12, 22, 32, 42, 52); and • the coordinating unit determining the relative positions of the subordinate units (10, 20, 30, 40).