CONTRAINTES CONJOINTES DE TRANSITIVITE DE DIFFERENCES TEMPORELLES ET EFFET DOPLER MULTIBANDES POUR LA SEPARATION, CARACTERISATION, ET LOCALISATION DE SOURCES SONORES PAR ACOUSTIQUE PASSIVE

摘要

The invention relates to a method for carrying out passive trajectography on a plurality of sources emitting first signals includes: acquiring, via a set of N sensors (Ci)i∈[1; N], signals emitted by at least one source over a window of time and within at least one frequency band; processing the signals, which includes cross-correlation operations (OP1) for identifying correlation peaks and deducing measures of arrival frequency differences FD and the arrival time differences TDOA of the signals; selecting a number of FDpq and TDOApq for each pair of sensors (Ci); generating transitivity equation systems for each time t between the FDpq(ti) and the TDOApq, the equations algebraically linking the sums of each FDpq(ti) and the sums of each TDOApq of each sensor pair; and deducing a position of at least one source.