Complex radar system for surface situation control and navigation

Subject and purpose. The main factor which affects the development of modern marine radars and increase of their efficiency is the correct justification of the concept of construction and selection of technical requirements for the development of new devices. The purpose of this work is to analyze the existing methods of marine radar construction, generalize the results of long-term radio physical researches in different regions of the World Ocean and in the Black Sea water area as well, and on their basis to develop the concept for applied complex radar for surface situation control and navigation. Methods and methodology. During the development of construction concept and analysis of the offered radar features the method of mathematical modeling was used. Results. The concept for the complex radar system construction for surface situation control and navigation consisting of 3-cm radar and 8-mm radar with radiometer device is proposed. When choosing 3-cm wave range, the results of long-term radio physical researches conducted by Usikov IRE NASU in different regions of the World Ocean and the Black Sea water area were considered. The usage of 8-mm wave range allows one to carry out radar observation in the near-field zone where signals of 3-cm radar interfere and create strong reflections from the sea surface. The necessity to use 8-mm wave range radiometer is caused by the fact that reduction of the effective scattering cross section due to applied radio absorbing materials leads to increasing of object’s own radio brightness radiation. Therefore to detect barely visible (produced under Stealth technology) and low-sized targets the radiometer which allows to increase target contrast can be used. Conclusion. Conclusions on practical importance of the offered concept for construction of complex radar for surface situation control and navigation are made.