Design and implementation of the digital radio frequency memory system based on advanced extensible interface 4.0

Digital radio frequency memory (DRFM) is an important part of modern electronic jamming equipment. It achieves high fidelity in the storage of radar waveform and guarantees the coherence between interference and radar signal. In this paper, a design scheme of the DRFM system based on FPGA and DSP is proposed, and the FPGA is the vital part of it. According to the complex FPGA function and high design challenge, an architecture based on advanced extensible interface 4.0 (AXI4) used to build the embedded system on FPGA is presented, which greatly enhances the flexibility of the system, speeds up the development, and brings conveniences for upgrade and maintenance.