It was shown the possibility of determining the coordinates of air objects during the combination of information from radars and ADS-B receiver system with MLAT technology use in the presence of a large number of targets, with additional use of correlation processing of received signals. Was analyzed the factors influencing the accuracy of determining the coordinates of air objects, a brief analysis of the capabilities of ADS-B technology. The advantages of correlation processing of received signals with additional MLAT technology use is the ability to determine the coordinates of air objects with high accuracy in the presence of a large number of targets.