(57) A method of estimating the location of a signal source comprises, by a processing
unit:
determining ΔΔϕm,n which represents a difference between accumulated phases of signals, Sm and Sn, received by at least one pair of the receivers,
determining a first estimate of the location of said signal source based on position
data and ΔΔϕm,n of said at least one pair of receivers, said first estimate being associated with
an accuracy area,
determining data representative of difference in times of arrival of modulation patterns
of the signals Sm, Sn, wherein said data comprise an ambiguity, and
for said at least one pair of receivers, using at least said data representative of
difference in times of arrival of the modulation patterns of the signals, ΔΔϕm,n, and said accuracy area, to obtain second estimates
of the source location, at least some of them being located within the accuracy area
|
|
