Undirectional hydroacoustic direction finder for low frequency signals

A combined sound receiver is proposed, in which two pairwise orthogonal channels are placed, having a common phase center and rotated relative to each other by 45 degrees, to measure the horizontal components of the vibrational velocity. A model for calculating bearing by such a system is presented. The possibility of reducing the angular dependence of the bearing determination error during summary data processing is substantiated by increasing the number of measurements and dividing the observation horizon into 16 angular sectors.