Optimized Design of On-board Storage System Based on CFDP Protocol
Xin Li, Weiwei Liu, Yuehua Niu, Jiyang Yu · 2023
Facing the demand of space manipulators' application in deep space, the on-board storage system need to combine the CCSDS file delivery protocol(CFDP), which is applied in deep space communication, to realize efficient and reliable storage of space manipulator's data. The traditional on-board storage is difficult to achieve the requirements of high flexibility storage and playback in CFDP protocol. With the introduction of MRAM to store the information of pocket data units(PDU), and the application of partial programming technology in Nand Flash to ensure the storage continuity of reputation PDUs, this design realizes access of data units in store-forward mode. So it can be used as a general device in the terminal and relay node of CFDP protocol. The simulation results show that this design can support CFDP transmission protocol in both aspect of capabilities and performances.