无线电高度表实时飞控半实物仿真技术研究

Research on Real-time Semi Physical Simulation of Radio Altimeter in Flight Control System

高度表接入飞控系统的实时闭环仿真是飞控系统性能评估的有效手段,目前基于预置飞行参数的高度表半实物仿真系统制约了高度表及飞控系统联合仿真需求。基于实时飞控参数和地面模型的实时高度表半实物仿真技术,完成了高度表实时仿真系统研究、回波计算模型优化和回波实时模拟设备设计,有效解决了飞控系统实时仿真与评估的技术难题,提高了飞控系统闭环仿真的有效性和逼真度,将成为高度表仿真技术的发展趋势,从而为高度表及飞控系统方案论证、试验验证提供支持。

Radio altimeter real-time in-loop simulation of flight control system is an effec- tive method for system performance evaluation, at present the real-time co-simulation of radio altimeter and flight control system is confined by the semi physical simulation system based on prearranged flight parameters. The real-time semi physical simulation technology based on real-time flight parameters and model, the research of altimeter real-time semi physical simulation system is completed by echo model optimization and echo real-time simu- lation equipment design. The technical problems of the altimeter real-time simulation and evaluation in flight control system is effectively resolved, the co-simulation effectiveness and fidelity of the altimeter and flight control system is improved, this technology will become the development trend of altimeter in-loop simulation and support the system design and test evaluation for radio altimeter and the flight control system.