A. M. Borodin, N. V. Uskov, A. M. Barabanova

The estimation method of identification trajectories probability is offered and examined. The trajectories are made by marks of radiotechnical means of the same type. The marks are built in coordinates: - cotangent of azimuth angle (bearing) for radiotechnical means - ? is "the path traversed" by aircraft. The expression for trajectories identification probability depending on the density of radiotechnical means of the same type at area, for threshold of trajectories separability, for meansquare accuracy measurement of bearing for radiotechnical means and the width of bearing sector from the board of aircraft is given. It is illustrated that, the main losses of trajectories during identification have the place in the nearest zone of bearing. The trajectory methods for definition of quantity of radiotechnical means of the same type are also of interest.