基于GPS的运输类飞机全空速范围校准方法研究

A Study of Full Airspeed Range Calibration Method of the GPS-based Transport Aircraft

准确的空速是保证飞行安全的基本条件,因此适航标准要求飞机进行全空速范围校准。为了解决某些飞机因安装问题而不能采用拖锥法进行空速校准的难题,文章研究了基于GPS的运输类飞机全空速范围校准方法,建立了相应的数据处理方法,分析了可能的误差来源,提出了减小误差的措施,且通过相关算例验证了该方法的可行性。

Accurate airspeed is the basic condition to ensure flight safety, so the airworthiness standard requires the aircraft to calibrate the full airspeed range. In order to solve the problem that some aircraft can not use towing cone method to calibrate air-speed due to installation problem, this paper studies the calibration method of full airspeed range of transport aircraft based on GPS, and establishes the corresponding data processing method. The possible error sources are analyzed, the measures to reduce the errors are put forward, and the feasibility of the method is verified by an example.