LOCALISATION OF A SIGNAL EMITTING SOURCE

Title:

LOCALISATION OF A SIGNAL EMITTING SOURCE

Document Type and Number:

WIPO Patent Application WO2001071374

Kind Code:

A3

Abstract:

A source localising method comprises the steps of measuring the power received by a set of sensors and selecting N measurements from respective sensors, where N is an even number and at least four. N-1 different direct power ratios are constructed each derived from the N power measurements, with different numerators and denominators derived from respective halves of the measurements in each case. The construction of N-1 direct power ratios is facilitated by the use of a suitably constructed Hadamard matrix. Each direct power ratio may be converted with a logarithmic transformation into a linear combination of measured powers.

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Inventors:

SZAJNOWSKI WIESLAW JERZY (GB)

Application Number:

PCT/GB2001/001204

Publication Date:

April 11, 2002

Filing Date:

March 21, 2001

Export Citation:

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Assignee:

QINETIQ LTD (GB)
SZAJNOWSKI WIESLAW JERZY (GB)

International Classes:

G01S5/02; G01S5/18; (IPC1-7): G01S5/02; G01S5/18

Foreign References:

GB2311697A	1997-10-01
US5926765A	1999-07-20
US5293642A	1994-03-08
US4494119A	1985-01-15
US4385301A	1983-05-24

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