Elaborate method of the process measuring control of the coordinates by unification of data measured with different precision by GPS and GLONASS navigation systems. The method is basing on the Markov model of the process coordinates measuring and measure of the informatively pseudo range constellation of the sputniks. Model is possible evaluate the measure of informatively the zones working up of the SNS and use it for stopping the process measuring of the coordinates.

The World Congress "Aviation in the X X I-st Century", 14-16 september [Текст] = Матеріали Всесвітнього конгресу "Авіація ХХІ століття" 14-16 вересня 2003 року / International Civil Aviation Organization; Ministry of Education and Science of Ukraine; National Academy of Sciences of Ukraine; National Aviation University. — Kyiv : NAU, 2003. — 438 p. : il.