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:
Oct. 27, 1987
Filed:
Sep. 21, 1984
Paul B Beckwith, Indialantic, FL (US);
Donald S Bistarkey, Palm Bay, FL (US);
Joseph J Pohedra, Melbourne Beach, FL (US);
Donald E Trimble, Melbourne, FL (US);
Harris Corporation, Melbourne, FL (US);
Abstract
A radar return image for display on a cockpit CRT is generated by selectively accessing terrain data compressed and stored in a digital map data base and processing that data to artificially simulate a radar return image pattern on a cockpit display which effectively corresponds that which would otherwise be provided by conventional T/R equipment. Since the compressed data base contains information representative of both the elevation and cultural features of the terrain at map locations that are capable of being intercepted by the aircraft's radar beam, this data may be subjected to signal processing functions to establish pixel intensity control signals by way of which a radar image of a cockpit CRT display is generated. This signal processing and control system includes system functional components for establishing the simulation of the effect of a radar beam having a prescribed beam width, slant-angle, and field of scan and controllably accessing the stored terrain map data from memory for establishing a pixel display data base in accordance with which the pixels of the cockpit radar display are intensity-modulated.