FPGA/LST-SW Encryption Module Implementation for Satellite Remote Sensing Secure Systems

The need for security of data transmitted from satellites to the ground has increased. Therefore, the need for secure onboard systems is in great demand, particularly in satellite remote sensing missions. This paper describes an approach for a secure Field Programmable Gate Arrays (FPGA) implementation of the Land Surface Temperature Split Window (LST-SW) algorithm, with objective to meat real-time requirements, area optimization and achieved higher Throughput goals to be sufficient for a secure remote sensing satellite applications and missions. The system is designed using VHDL (VHSIC Hardware Description Language) in a Highlevel design method. The experimental results demonstrate that the proposed hardware implementation using Xilinx Virtex-5 XC5VLX50T FPGA is exceedingly flexible. The proposed implementation achieved a throughput of 328.629 Mbps on Virtex-5 LX50T with a maximum clock frequency of 295.253 MHz and processing time with value of3.96 ms. In addition, the proposed implementation consumes 17% of slice in area utilization.