Design and Implementation of an FPGA-based Real-time Motion Target Detection System for Through-wall Radar

Through-wall radar (TWR), with its ability to penetrate obstacles and detect concealed targets, holds significant value in fields such as security surveillance and post-disaster search and rescue. However, in dynamic scenarios with stringent real-time processing requirements, traditional architectures struggle to balance computational efficiency, system complexity, and power consumption. To address these challenges, this paper proposes a parallel processing architecture based on field-programmable gate arrays (FPGA), enabling full hardware deployment of the motion target indication (MTI) algorithm through optimized resource scheduling and pipelined design. Experimental results show that this architecture processes data from acquisition to output in just 1.4 ms, with peak power consumption under 3 W, while maintaining detection accuracy. Compared to traditional solutions, it significantly improves processing speed and provides a pathway for low power consumption, miniaturization, and real-time deployment in engineering applications.