Method for correcting misalignment between multiple missile track links
US5074491A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1990 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Aug 14, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41G7/303
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for measuring boresight and parallax misalignment between multiple missile track links and for compensating guidance of a missile to a selected target. The method is applicable to any missile tracking system employing multiple track links. A missile is projected toward a target along a line of sight and tracked by multiple tracking sensors. Instantaneous output signals of any two tracking sensors are compared to determine instantaneous errors in boresight, parallax, or random errors. The error information is used to compute boresight and parallax correction terms. The correction terms are fed into conventional missile guidance algorithms to correct errors between the tracking sensor's line of sight and an operator's line of sight. Misalignment is measured during missile flight and the missile is used as a reference source in measuring the misalignments. The method is useful in tracking systems mounted on moving vehicles where accurate alignment of track links is difficult. The invention is also be useful in automatically preventing missile misses due to accidental misalignments in systems where the operator has manual control of the misalignment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.