Larionov O. Method of increase of the navigation service on-ground devices exactness taking into account the influence of troposphere effects in the radio channel

The processes of the troposphere effects influence on a radio channel during the transmission of cm- and mm-navigation radio signals are the research object. The objective of the work is an increase of the accuracy of the radio navigation system ground-based devices within the navigation service zone tak-ing into account the influence of the troposphere effects by cm- and mm-wave propagation. The research methods: the theoretical base for solving the set task are the works on statistic radio engineering theory, radio wave propagation theory as well as radio navigation system receiving-transmitting devices construction theory. The simmulation computer modelling was used to test this method. The aug-mented model of the typical schemes of cm- and mm-wave propagation under the lamellated masses in the troposphere, the supplemented model of the radio signal decay of the cm- and mm-wave bands in the troposphere layer, the augmented method of increase of the accuracy of the ground-based navi-gation service devices based on the taking into account the troposphere effects influence in the radio channel as well as the analytical expression of the effective radio signal duration for taking into account the radio wave propagation conditions changes are the received results. The presented method is introduced in Central Scientific Research Institute for devel-opment of new radio navigation systems and at the enterprises for development of unmanned aircraft navigation supplement projects. Radio navigation systems are an application sphere.