Design of Key Components of Remote Sensing Satellite Scene Simulation Simulator Based on NVMe Technology

In the traditional scene simulation simulator storage device, FLASH is low access speed, small storage capacity, DDR power loss data loss, and the dynamic and flexible data output cannot be realized. In view of this situation, we propose an implementation scheme of key components of remote sensing satellite scene simulator based on NVMe. NVMe has the advantages of high bandwidth, speed and flexibility, and can conduct multi-thread and multi-file high-speed storage and broadcasting, to meet the reading and writing requirements of big data storage of remote sensing satellites. In this scheme, based on FPGA platform and referring to NVMe protocol, we realize NVMe high-speed read and write data stream and storage on the basis of PCIe Gen 3. The read speed of PCIe quad-channel data stream is up to 2.53 GB/s, and the write speed is up to 2.51 GB/s. At the same time, we also implemented the PCIe single-word read and write register function to facilitate small-scale data transfer.