Handheld Millimeter-Wave Radar And Lidar Systems Using An Imu Device

We demonstrate a handheld millimeter-wave radar head connected with remote signal synthesizer via an optical fiber, for the realization of a small and handheld nondestructive imaging system. An inertial measurement unit (IMU) mounted on the radar head identifies the direction and orientation of the head to provide three-dimensional point clouds for inspection of building structures. A small lidar system with the IMU is also discussed for construction of 3D point clouds for inner structure mapping in the buildings.