Aerospace Instrument-Making Annotation << Back Accuracy control of position estimations in correlation extreme navigation systems L.I. Avgustov, T.V. Sazonova Questions of parameters synthesis of correlation-extreme navigation systems (CENS) in flight conditions during random flight path flying in the desired area are considered. The set of features has been proposed by which the decisions about the suffi-ciency of geophysical fields’ observations to provide the required accuracy of navigation are made. The results of CENS simu-lation modeling with use of the proposed features are presented.