Real-time multiple velocity false target generation in digital radio frequency memory

Real-time generation of multiple velocity false targets, which is an effective electronic counter measure (ECM) technique against pulse-doppler radar, is studied. Classical ECM techniques employ generation of velocity false targets by switching single signal source in time. This paper proposes a time and frequency domain generation approach, which is more flexible and efficient in terms of resource allocation for increased number of false targets. ECM technique is implemented in Xilinx Virtex-6 SX475t FPGA platform. Velocity false targets with different parameter sets are tested both in FPGA platform and computer environment. It is shown that the proposed technique is effective in false target generation and suitable for real time implementation requiring lower resource allocations compared to time and frequency domain generation.