Method and system of reducing friendly fire in anti-aircraft engagements
US8232911B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 2009 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Feb 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/781
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system provide for confirmation of friendly aircraft as a backup to conventional IFF (identification, friend or foe) telecommunication systems and methods. An IFF secondary radar signal is generated and directed to an aircraft. When no confirming response is received within a pre-determined time period, the invention provides for generating and transmitting a pre-arranged modulated signal to the aircraft. In response to receiving the pre-arranged modulated signal, the aircraft notifies the aircrew to execute a pre-arranged kinematic maneuver that is detected by the systems using radar means to confirm that the aircraft is a friendly aircraft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.