Small-sized device generation and dispatch processing radar signals of the L and S frequency bands

Background. Currently, there is an intensive development of Earth remote sensing systems, which is why there is increasing interest in small spacecrafts for solving various classes of tasks, which leads to stricter requirements for the mass and dimensional parameters of systems and devices included in the small spacecrafts of the mini and microsatellite class, which in turn imposes limitations to the range of components used and the versatility of solutions developed based on them. During the current stage of work, an analytical review of trends in the state of the scientific and technical problem being solved and promising areas for the development of on-board target equipment in the L and S frequency bands has been carried out. Aim. The goal is to create the appearance of small-sized on-board equipment using software-defined radio technologies and a new class of transceivers based on on-chip systems. Methods. As part of the research, methods of analyzing and modeling the structures of advanced equipment were used. An assessment was also made of the possibility of adapting existing software-defined devices for use as part of the radar. Results. The results of the study showed that the software-defined radio systems considered in the work and their components are subject to adaptation to the tasks of radar, the most modern key elements are selected, on the basis of which the structural scheme is compiled. Conclusion. As a result of the research, key elements were selected and a block diagram of a small-sized device for generating and processing radar signals in the L and S frequency ranges was constructed based on the adaptation of the software-defined NAT-AMC radio system to solve radar problems in a small form factor.