公开(公告)号：US3608212A

公开(公告)日：1971-09-28

申请号：US3608212D

申请日：1969-12-01

Applicant: SAAB SCANIA AB

Inventor： LENNERYD ERIK GORAN ,  TRUMSTEDT KARL REIDAR

IPC: F41G3/26 ,  F41G3/28 ,  G06G7/80 ,  G09B9/00

CPC classification number: G06G7/80 ,  F41G3/26 ,  F41G3/2627 ,  F41G3/28 ,  G09B9/003

Abstract: D R A W I N G
ON A BATTLEFIELD PANORAMA, IMAGES OF ARTILLERY PROJECTILE EXPLOSIONS ARE PROJECTED AT THE LOCATIONS THEY WOULD ATTAIN IF FIRED FROM A GUN LAID ACCORDING TO FIRE CONTROLLER''S ORDERS, AND OF APPEARANCE THAT TAKES ACCOUNT OF ANY INTERVENING ELEVATIONS IN THE DEPICTED TERRAIN. LOCATION OF EACH EXPLOSION IS COMPUTED BY COMPARING TERRAIN ELEVATION SIGNALS FROM A THREE-DIMENSIONAL MEMORY UNIT, TAKEN ALONG THE TRACK OF THE ASSUMED PROJECTILE, WITH A SIGNAL CORRESPONDING TO CHANGING ALTITUDE OF THE PROJECTILE IN THE FINAL PORTION OF ITS TRAJECTOR, AND THE EXPLOSION IMAGE PROJECTOR IS SWUNG TO THE LOCATION AND ELEVATION THUS DETERMINED. SELECTION OF AN APPROPRIATE IMAGE IS MADE IN RESPONSE TO COMPARISON OF AN EXPLOSION ELEVATION SIGNAL WITH SIGNALS FOR ELEVATIONS OF THE DEPICTED TERRAIN BETWEEN THE BURST POINT AND THE FIRE CONTROLLER''S POST.


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