REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

Time of arrival estimation of the gunfire shock OR BLAST waves at the large distances

Miodrag VraČar

Faculty of Maritime Academic Studies, Beograd Bulevar vojvode Mišića 37, vracarmiodrag@mts.rs

ivan pokrajac

Military Technical Institute, Beograd Ratka Resanovića 1, ivan.pokrajac@vs.rs

Abstract: Estimation of the time of arrival of the gun fire shock waves  at large distances is significant in all cases when the purpose is localization of the gun. The time of arrival of the shock waves is commonly estimated at different and known positions at the terrain of interest. Based on these estimations, it is possible to calculate possible position of the gun. At large distances, greater than 10 km or less, shock wave signal is significantly deformed and therefore is relatively hard task to estimate real time of arrival. In this paper methods are proposed, which are based on cumulants of the acoustic signal whose origin is distant gunfire events.

Keywords: time of arrival, gunfire, localization, cumulant, blast wave, shock wave.