1. A computer-implemented method for determining a coverage region of a radar device, the computer-implemented method comprising: receiving, by one or more processors, radar data generated by a radar device and lidar data generated by a lidar device, the radar data including radar data points representing objects detected by the radar device and the lidar data including lidar data points representing objects detected by the lidar device; determining, by the one or more processors, a radar coverage region for the radar device by comparing one or more radar data points to one or more lidar data points; and generating, by the one or more processors, data used to display a graphical representation of the radar coverage region.