FPGA Based OFDM MIMO Transmit Beamformer for Multi-Functional Software Defined Radars

Multifunctional MIMO Software Defined Radars are the state-of-the art in radar technology. Advancements in FPGAs, SoCs have enabled highly configurable and adaptable MIMO designs for improving the radar performance. We present an FPGA based OFDM-MIMO design for adaptive transmit-beamforming with capability for simultaneous scheduling of beams across OFDM sub-carriers for concurrent multi-mode MIMO operations of surveillance, SAR/ISAR imaging etc. The proposed design deviates from conventional multi-DDS design to single-DDS design for optimal FPGA resource-utilization. Our implementation in ZYNQ can be directly used in any SoC/RFSoC and is particularly useful in Airborne Radar Surveillance, automotive-radars and Integrated Sensing and Communication Systems.