System and method for estimating a shooter range

A method for disambiguating a trajectory projectile from signals only shock wave, comprising: measuring at least an initial part of the signals only shockwave, five or more separate acoustic sensors (22-28) that forming an antenna (20); determining (60) from the initial part measure only signals shockwave, differences between arrival times (TDOA) for sensor pairs; characterized by: applying (70) a genetic algorithm with an initial chromosome, which includes projectile trajectory assumptions, for a predefined number of generations; calculating (74) residues, each being a measure of the relative merits of the respective solutions obtained with the chromosomes from the genetic algorithm; calculating a ratio of the solution having the minimum residue and an ambiguous alternative solution; and if the ratio is greater than a predetermined value (76), designate (80) the solution having the minimum residue calculated as the disambiguated projectile trajectory.