Intelligent Radar Data Acquisition and Processing Method Based on FPGA

To address the challenges of high-bandwidth, high-reliability data transmission and real-time processing in modern radar systems operating in complex electromagnetic environments, this paper proposes an intelligent FPGA-based data acquisition and processing system architecture. The design incorporates three key innovations: a quad-channel optical interface based on Aurora 8B/10B protocol that achieves <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\text{1 2. 5 G b p s}$</tex> per channel transmission rate through channel bonding and load balancing algorithms while maintaining over 90 % effective bandwidth during partial link failures; a three-level finite state machine control system supporting microsecond-scale mode switching (bypass/cache modes, busy/idle modes) with improved resource utilization through weighted polling algorithm and real-time error monitoring capability; and an optimized DDR3 memory control subsystem implementing bank-interleaved access and QoS-aware scheduling via AXI4 bus, delivering 20% higher mixed read/write throughput than conventional designs. This modular architecture effectively resolves critical technical challenges including rapid multi-mode switching, link fault tolerance and memory bandwidth bottlenecks, providing a high-performance hardware solution for radar signal processing in complex electromagnetic environments.