V.A. Ufaev, A.V. Ufaev, D.V. Ufaev

This paper proposes models for complex measurements of one- and two-dimensional bearings which depends and is independent on target's elevation angle. Basing on the proposed models, the maximum likelihood estimations of plane and space coordinates were synthesized. A quasi-optimal mean square minimum criterion for distances from bearing lines is proposed for accelerated calculation, and, basing on it, the estimations are synthesized analytically. Statistical modeling results with a comparative estimation of coordinate determination errors and computational costs are presented.