Acoustic hostile fire indicator

US9696405B1 · kind B1 · utility

Assignee

• BAE Systems Information and Electronic Systems Integration Inc. · US

Inventors

• George Succi · Merrimack, US
• Eldon M. Sutphin · Merrimack, US
• Edward C. Real · Nashua, US
• Philip J. Haney · Merrimack, US
• William O. Devine · Stoneham, US

Key dates

• Filing date: Aug 28, 2013
• Grant date: Jul 4, 2017
• Expiry date: Jan 29, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04R2499/13
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A system and method for detecting the trajectory of a projectile is presented. One system includes a flash detection sensor, an acoustic sensor, an optical sensor and a processor logic mounted on a vehicle. The flash detection sensor detects a flash of a projectile being launched. The acoustic sensor detects when a blast wave associated with the firing of the projectile reaches the vehicle. The optical sensor takes two or more images of the same projectile. The images are typically not in the visible light spectrum. The processor logic calculates a trajectory of the projectile based on the images and data collected by the acoustic sensor associated with the blast wave. The processor logic may generate a warning signal to warn an operator of the vehicle about the projectile.