Solution of the problem of navigation on the basis of integration of inertial-satellite navigation systems, complexed with odometer, and the approximation of the trajectory of motion of the object by means of electronic charts (EC) set of great circle paths. Given the discrete nature of satellite measurements of the parameters of motion estimation is carried out by successive application of two non-linear Gaussian filters: continuous - the interval between satellite measurements (including at their failure) and discrete-continuous - when they occur. Thus obtained estimates of the parameters of motion implemented in the great circle path, having a minimum dimension, provide fundamentally accurate snap estimated coordinates to the true path of movement defined by the EC.

Keywords: tight integration, inertial-satellite navigation systems, odometer, e-cards, great circle path, a Gaussian filter