MULTI-CHANNEL HBM PARALLEL STORAGE CONTROLLER FOR SPACEBORNE SAR IMAGING SYSTEM

With the continuous development of remote sensing technology, Spaceborne Synthetic Aperture Radar (SAR) is gradually evolving towards acquiring information in space and real-time on-board processing. Therefore, the real-time processing requirements for its imaging processing system are becoming increasingly stringent. The data bandwidth of the existing imaging processing systems cannot meet the high real-time processing demands. To address the aforementioned issues and satisfy the high bandwidth requirements of on-board SAR imaging processing systems, this paper proposes a multi-channel High Bandwidth Memory(HBM) parallel storage controller for Spaceborne SAR. It enables parallel data reading and writing for 16 data channels. The overall hardware design is based on the Virtex UltraScale+ HBM VCU128 FPGA platform. Through testing and verification, under the same clock frequency, the data bandwidth has been improved by approximately 10 times compared to existing solutions, achieving around 80GB/s of ultra-high bandwidth data read-write capability. Additionally, this design solution holds significant potential for further development, making it of considerable value and significance for the design of on-board SAR imaging processing systems.