METHOD FOR LOCATING MULTIPLE RAYS OF A SOURCE WITH OR WITHOUT AOA BY MULTI-CHANNEL ESTIMATION OF THE TDOA AND FDOA

摘要

Method and system for locating an emitter E transmitting a signal toward a receiver A comprising N radio frequency channels (N≥1), the characteristics of said signal being unknown to the receiver and said signal being reflected off P reflectors Bi (P≥1) of known positions, characterized in that it comprises at least the following steps: Step 1: a step of multi-channel joint estimation/detection of the time differences of arrival or TDOA τi and of the frequency differences of arrival or FDOA fi for each reflected path, Step 2: a step of angular estimation of the direction θ1 of the direct path of the signal emitted by a goniometry procedure, Step 3: a step of location in the plane of the position (x,y) of the emitter E on the basis, at least, of the pairs (τi, fi). Fig 1