Estimating the parameters of pulsed sources from data on acoustic waves recorded in the atmosphere

Resumo

The possibility of estimating the parameters of surface pulsed sources from data on acoustic waves recorded in the atmosphere is studied. Experimental values are given for peak pressure P₊ of recorded acoustic signals, wave-profile area S₊ in their positive phase, and length t₊ of this phase, and the approximations of these parameters are obtained within wide ranges of source energy 10^–3 < E < 10¹⁰ kg TNT and scaled distances 1 < R/E^1/3 < 4 × 10⁴ m/kg^1/3. Conventional methods of estimating the acoustic energy E according to data obtained from acoustic measurements in the atmosphere are analyzed, and ways to improve their accuracy are proposed. The influence of the type of explosions on the parameters P₊, S₊, and t₊ of acoustic signals at long distances R/E^1/3 > 500 m/kg^1/3 from explosions is shown.