Theodore P Nietzold

US Patent:

47297379, Mar 8, 1988

Filed:

Jun 2, 1986

Appl. No.:

6/869773

Inventors:

Robert L. Reagan - Huntsville AL
Theodore Nietzold - Huntsville AL

Assignee:

Teledyne Industries, Inc. - Huntsville AL

International Classification:

G09B 908

US Classification:

434 35

Abstract:

A system for training aircrews, particularly aircrews of relatively slow-moving aircraft such as helicopters in laser/electronic warfare countermeasure tactics and the use of laser/electronic warfare countermeasure equipment is provided. The system is operable with the aircraft's instruments to present the simulated threats whenever such threats are both with the line-of-sight of, and within the presentation range of the aircraft. Accordingly, such a system includes a plurality of independently operating threat-simulating transmitter units simulating both stationary and non-stationary threats by broadcasting omnidirectional radio frequency signals over a common carrier frequency. On-board equipment, carried on the aircraft determines whether the aircraft is both within the line-of-sight and within presentation range to the threat based upon receipt of the transmitter unit signals and the location of the threats relative to that of the aircraft. When, determined by the on-board equipment, that both the requisite line-of-sight and presentation range conditions are met, a controller, constituting an important part of that equipment, causes the aircraft instruments to present such threat in proper perspective as to both direction and range, to the crew over the aircraft's radar warning receiver and intercom system.