(19)
(11) EP 0 261 091 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.03.1989 Bulletin 1989/11

(43) Date of publication A2:
23.03.1988 Bulletin 1988/12

(21) Application number: 87850265.7

(22) Date of filing: 03.09.1987
(51) International Patent Classification (IPC)4: F41G 3/14, F41G 7/30
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI NL SE

(30) Priority: 17.09.1986 SE 8603911

(71) Applicant: Aktiebolaget Bofors
S-691 80 Bofors (SE)

(72) Inventor:
  • Dahlström, Peter
    S-691 44 Karlskoga (SE)

(74) Representative: Falk, Bengt et al
Bofors AB Patents and Trademarks
691 80 Karlskoga
691 80 Karlskoga (SE)


(56) References cited: : 
   
       


    (54) A method and an apparatus for tracking a missile in its trajectory


    (57) The disclosure relates to a method and an apparatus (2) for tracking an unguided rocket projectile during at least a part of its trajectory. According to the invention, it is possible, with the knowledge of the difference between the actual trajectory of the rocket projectile and its theoretically calculated trajectory, to decide on and execute those corrections which are required in order that subsequent rocket projectiles (3) launched at the same target area shall register hits. According to the invention, the rocket projectile (3) is tracked by means of an IR sensor, or alternatively, a TV camera (2) which senses the contrast between the projectile (3), or parts thereof, and preferably the nozzle of the rocket motor, and the background (the heavens).







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