一种基于信息检测的卫星处理载荷健壮性提升策略

An Information-detection Based Robust-enhanced Model for Processing Payload In-orbit

为了以尽量小的代价提升处理载荷的在轨健壮性,提出了一种不增加硬件且工程易实现的策略。该策略引入一种新的信息流设计,在单机间信息传输时插入特殊设计的测量帧,通过该测量帧在处理载荷之间的信息闭环检测实现在轨故障判断与定位,以很小的代价实现单机间完好性监视以便故障快速恢复,提升了在轨处理载荷的可用度和健壮性。仿真结果表明,针对单粒子事件引起的在轨故障,所提策略理论上相比传统方式的检测概率能够提升3~4倍,故障恢复时间能够缩短至1/6以下,配合其他在轨故障处理与快速恢复方法,还可进一步降低单粒子事件对业务的影响。

In order to enhance the robustness of processing payload in-orbit,an operable model is proposed.The model can be applied in engineering conveniently without any increment of hardware.A new information stream is proposed in the model.In the stream,specially designed frames will be used to monitor the devices and interfaces by closed loop transmission.Once a failure among devices or interfaces happens,the loop will be broken so that the failure can be detected and recovered rapidly.For the failures caused by single-particle effects,analysis result shows that the probability of detection can be increased by 3~4 times and the recovery time can be decreased to below 1/6 by the proposed framework.By applied with other in-orbit failure recovery schemes,communication interruptions caused by single-particle effects can be reduced further by the proposed model.