Methods for spatial direction finding of geoacoustic signals at Mikizha Lake in Kamchatka

Abstract

In the framework of the work, a spatial analysis of geoacoustic emissions properties recorded by a hydroacoustic receiver in a shallow Mikizha Lake, Kamchatkskiy kray, is carried out. The features of geoacoustic pulse registration are considered, methods to determine the directions of their arrival and to locate the sources are proposed. Examples of geoacoustic signals during background periods and seismic event preparation periods are presented. *

Estimation of the power of geoacoustic emission sources registered in Mikizha Lake, Kamchatka region

“…These features of the recorded signal may be used to determine the distance to its source. The distance to the signal source will correspond to the vector SV length, depending on the geometric dimensions of the system and the delay between the moments of registration of the direct and the reflected waves [8]. The sound wave refraction effects at the medium boundary are not taken into consideration.…”