HALO with the new ALIMA laser measurement system

HALO with the new ALIMA laser measurement system
HALO with the new ALIMA laser measurement system
The new laser-based ALIMA measuring system during a test in front of the DLR hangar in Oberpfaffenhofen. ALIMA uses light detection and ranging (lidar), which, like radar, detects the backscattering of signals, in this case transmitted using a high-performance pulsed laser. This technique allows gravity waves to be detected at altitudes of up to 90 kilometres during flight.