Abstract: In an embodiment a method includes emitting at least one group of at least N+1 mutually temporally asynchronous synchronization signals from at least N+1 fixed emitting locations in a space, receiving the synchronization signals of the group by a mobile device and at at least one fixed receiving location in the space, determining a reception moment of each synchronization signal of the at least one group by the mobile device in a time base specific to the mobile device, determining a reception moment of the synchronization signals of the at least one group at the at least one receiving location in a time base specific to each receiving location, and determining a position of the mobile device in the space at a given moment based on the reception moments determined at the at least one receiving location, the reception moments determined by the mobile device, coordinates of the emitting locations in the space and a distance between each emitting location and the at least one receiving location.

Abstract: A method of obtaining simulated parameters ( pos(t), vit(t), acc(t), par(t)) able to characterize the movement of an articulated structure provided with sensors, characterized in that the method comprises the following steps: calculating, from estimated movement state parameters of the structure, estimated measurement data ( H(t), ?(t)), each estimated measurement data item corresponding to a measurement delivered by a sensor, difference between the measurements delivered by the sensors and the estimated measurement data that correspond to them, global mathematical processing of the observer type of the data issuing from the difference in order to obtain at least one estimated difference for an estimated movement state parameter, and adding the estimated difference for the estimated movement state parameter and the estimated movement state parameter that corresponds to it in order to form a simulated parameter.

Abstract: The invention concerns a method of obtaining simulated parameters ( pos(t), vit(t), acc(t), par(t)) able to characterise the movement of an articulated structure provided with sensors, characterised in that the method comprises the following steps: calculating, from estimated movement state parameters of the structure, estimated measurement data ( H(t), ?(t)), each estimated measurement data item corresponding to a measurement delivered by a sensor, difference (9) between the measurements delivered by the sensors and the estimated measurement data that correspond to them, global mathematical processing of the observer type (10) of the data issuing from the difference in order to obtain at least one estimated difference for an estimated movement state parameter, and adding (11) the estimated difference for the estimated movement state parameter and the estimated movement state parameter that corresponds to it in order to form a simulated parameter.