National Aerospace Laboratory Flight Research Division
National Aerospace Laboratory Flight Research Division
National Aerospace Laboratory Flight Research Division
National Aerospace Laboratory Flight Research Division
National Space Development Agency of Japan
An existing radar was improved for use as a real-time flight path monitor for Automatic Landing Flight Experiment (ALFLEX). The operational difficulty of the tracking radar was decreased and a data transfer function was added. Its function and performance were confirmed by flight testing, and the devices that were exchanged or added worked normally. Absolute position correction of the tracking radar was required to measure the flight path of an aircraft. Calibration data using DGPS (Differential GPS) positioning during flight testing were gathered easily and precisely. The bias component of calibration data is installed in the radar device and real-time positioning data were corrected.