Flight Research Unit, Aeronautical Technology Directorate, Japan Aerospace Exploration Agency (JAXA)
Flight Research Unit, Aeronautical Technology Directorate, Japan Aerospace Exploration Agency (JAXA)
Flight Research Unit, Aeronautical Technology Directorate, Japan Aerospace Exploration Agency (JAXA)
This report is concerned with evaluation of GNC systems for D-SEND#2. D-SEND is a project to demonstrate a low sonic boom aerodynamic design concept, and the objective of D-SEND #2 flight test is to measure a sonic boom which is generated by a test vehicle at prescribed flight conditions. In this flight test, an unpowered test vehicle is lifted to an altitude of 30km by a balloon from which it then separates. After the separation, the vehicle's on-board flight control computer selects a target Boom Measurement System (BMS) according to the separation point. The vehicle then autonomously flies to the selected BMS and establishes prescribed sonic boom measurement flight conditions. Since it is required to achieve mission objectives at the very first flight in such a flight testing using a balloon, evaluation of mission success chance is mandatory adding to that of controller stability. It is also important to establish operational criteria for various anomaly cases. Some customized evaluation are also carried out to asses various risks in the flight test. This report describes a comprehensive evaluation method for GNC systems of D-SEND #2.
内容記述
形態: カラー図版あり
内容記述(英)
Physical characteristics: Original contains color illustrations