| 摘要 |
<p>A low cost and highly accurate sniper detection and localization system uses observations of the shock wave (14, 16) from supersonic bullets to estimate the bullet trajectory (12, 120), Mach number, and caliber. If available, muzzle blast (118) observations from an unsilenced firearm is used to estimate the exact sniper location along the trajectory. The system may be fixed or portable and may be wearable on a user's body. The system utilizes a distributed array of acoustic sensors to detect the projectile's shock wave and the muzzle blast from a firearm. The detection of the shock wave (14, 116) and muzzle blast (118) is used to measure the wave arrival times of each waveform type at the sensors. This time of arrival (TOA) information for the shock wave (14, 116) and blast wave are used to determine the projectile's trajectory (12, 120) and a line of bearing to the origin (92) of the projectile.</p> |
