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公开(公告)号：US10852388B2
公开(公告)日：2020-12-01
申请号：US15577295
申请日：2016-06-13
申请人： THALES
摘要： A method using an array of ESM receivers comprises; a step of determining a first locus on the basis of a first measurement giving information on the angle difference of arrival of the emission beam on two receivers, the first locus including the points in space giving the same first measurement on the two receivers; a step of determining a second locus on the basis of a second measurement giving information on the direction of arrival on at least one receiver, the second locus including the points in space giving the same second measurement on the receiver; and a step of determining a third locus on which the position of the source is found, the third locus being the intersection of the first locus and of the second locus.
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公开(公告)号：US09846221B2
公开(公告)日：2017-12-19
申请号：US14650014
申请日：2013-11-29
申请人： THALES
CPC分类号： G01S5/12 , G01S3/043 , G01S3/72 , G01S5/0221 , G01S5/0278 , G01S5/04 , G01S5/14
摘要： A method of passive location of radar transmitters implemented by at least two ESM stations, the radars having a quasi-constant scanning speed in the course of the transit over the set comprising at least two ESM stations, each of the ESM stations being able to intercept the transmission lobes of radar transmitters and to estimate their lobe transit times (LTT) and at least one station being able to estimate the angle of arrival α of the transmission lobes, the location of the radar transmitters being performed by testing the intersection between an iso-LTTD curve passing through at least the two ESM stations and a sighting straight line passing through the ESM station having measured the angle of arrival and of azimuth equal to the measured angle of arrival α.
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