A SEU-hardened Design of Satellite Antenna Control Circuit

In order to solve the problem that space products are susceptible to SEU resulting in program disorder, a SEU-hardened design of satellite antenna control circuit is proposed based on software refactoring of DSP and periodic refresh of SRAM FPGA in orbit. Intelligent refresh chip BSV2 working principle is introduced and applied circuit is designed, while DSP software refactoring strategy and implement method are introduced. Experimental results show that the design above can repair system dysfunction effectively caused by SEU and improve reliability of space products in long-life cycle. There is practical significance in engineering.