Aimed at the flight environment of plant protection UAVs, Nanoradar has launched a millimeter wave radar solution for terrain awareness in unmanned aerial vehicle ("1 +2" solution). It adopts one NRA24 altimeter radar sensor and two SP25T radar sensors for obstacle avoidance, with the advantages of high integration, anti-interference, good stability, long distance measurement, accurate height measurement, small size, light weight, easy to install and all day and all weather work