Dr. Sauta O.I. is an expert on air radio engineering systems for navigation and landing, and holds 20 patents for inventions in the field of radio engineering systems for satellite navigation. Prof. Shatrakov A.Y. is the chair of radio engineering systems at the Institute of Radio Engineering, St. Petersburg State University. His chief research interests are in the area of radio navigation systems for air traffic control and safety. Shatrakov Y.G., Professor, Doctor of Technical Sciences, Honored Science Worker of Russia, RATS full member, graduated from Leningrad Institute of Aviation Instrumentation and Leningrad University (Physics and Mathematics Faculty). He defended his thesis in 1966. He published more 400 monographs and textbooks on radio navigation, radiolocation, production organization. He prepared more than 100 candidates and doctors of science as a scientific adviser and scientific consultant. Scientific directions founded under the guidance of Y.G. Shatrakov are as follows: relative radio