The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 1982
Filed:
Mar. 25, 1980
Philippe Lacomme, Paris, FR;
Thomson-CSF, Paris, FR;
Abstract
In order to determine the angular offset of the direction of a target tracked by a monopulse radar from the bore-sight axis of the radar antenna, sum and difference vectors .SIGMA. and .DELTA. represented by intermediate-frequency signals derived from incoming echo pulses are algebraically combined to form two ancillary vectors .gamma.=.SIGMA.+jp.DELTA. and .epsilon.=.SIGMA.+jq.DELTA. where p and q are two mutually different real coefficients, one of which may be zero. For each recurrence of a radar-pulse transmission in a series of N such recurrences, a real component V.sub.iK and an imaginary component V.sub.jK of an angular-deviation vector V is calculated as the scalar and the vector product, respectively, of the two ancillary vectors .gamma. and .epsilon.; these components are separately integrated over the N recurrences to yield two further components W.sub.i and W.sub.j whose quotient W.sub.j /W.sub.i represents a useful angular-deviation signal.