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:
Jul. 17, 2001
Filed:
May. 04, 1981
Robert Zwirn, Los Angeles, CA (US);
John W. Bozeman, Los Angeles, CA (US);
Raytheon Company, Lexington, MA (US);
Abstract
An improved tracking and guidance system is provided for line-of sight commanded missiles. The system includes a missile mounted laser beacon which is modulated at a predetermined frequency. An infrared sensor mounted on a tracking unit receives the incoming optical energy and provides a corresponding electrical output. The output signals are filtered to eliminate clutter and those signals outside the range of frequencies within which the laser is modulated. The filtered signals are then peak detected to determine missile azimuth and elevation within a predetermined window. Azimuth and elevation error detector circuits compare the missile azimuth and elevation to predetermined signals to generate error signals. The error signals are utilized by the missile guidance system to provide updated guidance commands.