Potential characteristics for navigation signals receiving in the presence of space distributed interferences

Using methods of optimal filtering theory there is synthesized an optimal navigation signals receiving algorithm for a navigation apparatus with an antenna array in the presence of space distributed interferences. There is shown that accuracy characteristics of a navigation signal delay, phase and Doppler’s frequency estimations are depend on the dispersion of  an equivalent noise at the antenna array output that is formed due to optimal spatial processing. There is given an analysis data of  the dispersion of  an equivalent noise at the 7-elements antenna array output as a function of interferences location relative to direction of navigation signals receiving. There is shown that in a navigation apparatus with 7-elements antenna array there is successfully suppressed six interferences including interferences received at low angles of elevation. Most adverse situation is uniform angular (azimuth and elevation) distribution of interferences.