FADS系统在飞翼布局飞行器上的应用研究

Research on the Application of FADS System to a Kind of Flying Wing Vehicle

针对飞翼布局飞行平台对高精度迎角、侧滑角的依赖性,设计了一种采用安装于机头表面的测压孔和机翼前缘的测压孔相结合的FADS系统应用方案,给出了其空气动力学模型,并将该FADS系统与惯性系统相结合来提高机动情况下大气数据的测量精度。由于该系统以FADS测量结果为基础,所以可以保证最后输出结果的精度要求,而且还克服了FADS系统延时的影响,其计算复杂性基本没有增加,满足实时性要求,易于工程实现。

In allusion to flying wing vehicle which needs more accuracy angle of attack and angle of sideslip signal, the kind of FADS system in which pressure orifices are installed on both vehicle nose cap and wing leading edge is designed and then an aerodynamic model is also given. The FADS system and the inertia navigation system（INS） are combined together to improve the airdata measurement accuracy during maneuver, because of this system is based on the results of FADS system, it can ensure the system accuracy, and also it can diminish the affect of FADS system time-delay without in- creasing the system complexity, also it can meet the needs of real-time and can easily carry out in engineering.