The multifrequency sonic direction and range finder

The paper presents the operation principle and block diagram of the multifrequency sonic direction and range finder, which allows to detect with required accuracy position (bearing and distance) of the powerful source of finite amplitude acoustic waves (for example, sonar beaconpinger). This device may be used in the gage subsystem of position reference system for dynamic retention of drill ship by carrying out of boring tool reel into the underwater well.