FPGA Implementation of High-Speed Data Acquisition System for High-Resolution Millimeter Wave Radar

This paper introduces FPGA implementation of high-speed data acquisition system for high-resolution millimeter wave radar. The transfer bandwidth of the Low Voltage Differential Signaling (LVDS) interface of the high-speed data acquisition system is 7200Mbps, which supports the cascade of four millimeter-wave radar sensors. The maximum transfer bandwidth of the DDR3 interface in the system is 12800Mbps, which is able to support high-bandwidth sample data storage of twelve millimeter-wave radar sensors. The maximum transfer bandwidth of Gigabit Ethernet interface in the system is 1000Mbps, which can adjust the transfer rate according to the system requirements, with good scalability. By using the high-speed data acquisition system designed in the article for the cascade of four high resolution 77GHz FMCW millimeter wave radar sensors, the system can achieve imaging with angular resolution close to 1.3 degrees.