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. 09, 1995
Filed:
Sep. 08, 1993
Applicant:
Inventor:
Ake Hansen, Karlstad, SE;
Assignee:
Bofors AB, Karlskoga, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F41G / ;
U.S. Cl.
CPC ...
342188 ; 244-314 ; 244-321 ; 244-311 ;
Abstract
A system for an unambiguous determining of the roll angle attitude of a rotating projectile, grenade, missile or the like with the aid of a polarized electromagnetic radiation, comprises a transmitter for emitting a position-determining polarized radiation (space wave) in the direction of the projectile and a receiver arranged in the projectile for receiving the emitted radiation. The emitted space wave is made up of a carrier wave reference with frequency f.sub.1 which has been phase-modulated with a modulation frequency f.sub.2, wherein f.sub.2 is<<f.sub.1 and wherein f.sub.2 forms a submultiple of the carrier wave frequency f.sub.1.