TECHNICAL FACILITIES FOR ENSURING SECURITY
Adaptive methods for detecting passive signal from an underwater object
In order to determine the total spatial and temporal scale of the propagation of anthropogenic sources of noise, it is necess ary to identify them, which can be achieved by comparing underwater and sea surface observation data. For this purpose, it is necessary to determine the direction to the noise object in a function of time. In the development of a passive hydro-acoustic system positioned on the seabed for the detection, classification and determination of the direction to an underwater object, an adaptive processor sh all be designed, examined and experimented to dynamically determine the weighting factors of a two-element antenna grille according to the criteria of the minimum of the average square error and the maximum of the signal noise ratio