基于FPGA的空间电子部件在轨可修改技术

An FPGA Based On-Orbit Repairable Technique for Space Electronic Units

空间电子产品在地面经过测试和试验后,在轨飞行时仍然会出现无法预料的故障.通过在轨修改基于FPGA的硬件系统,可以提高电子产品的可靠性、安全性和灵活性.采用基于FPGA的在系统编程技术(ISP),提出在轨可修改技术实施的方案,同时结合具体实例介绍空间电子部件在轨可修改技术实现的方法和途径,并给出空间应用该技术的建议.

Although space electronic units are fully tested and experimented on ground, unexpected fault still exists. Reliability, safety and flexibility of these products can be improved by repairing the FPGA-based hardware system on orbit. Based on the in system pro- gramming （ISP） technique, a scheme for repairing FPGA-based hardware system is proposed. An imple- mentation for the scheme is introduced using an exam- ple and a proposal is also provided.