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嵌入式系统具有实时性好、可靠性高、体积小和功耗低等优势,将该技术引入新型航空拖靶高度控制器的设计,可显著提高其综合性能。基于ARM7微处理器和μC/OS-Ⅱ嵌入式实时操作系统开发了航空拖靶高度控制器,主要介绍了控制器的组成、原理和软硬件设计过程。原理样机的半实物仿真结果表明系统响应快、控制精度高,能够准确控制拖靶做超低空掠海定高飞行,达到了设计要求,控高精度可达2 m。
The embedded system has the advantages of good real-time, high reliability, small size and low power consumption. The introduction of this technology into the design of the new airborne drag target height controller can significantly improve its overall performance. Based on ARM7 microprocessor and μC / OS-Ⅱ embedded real-time operating system, the airborne drag target height controller is developed. The composition, principle and hardware and software design of the controller are introduced. The semi-physical simulation results of the prototype show that the system has the advantages of fast response, high control accuracy, accurate control of the towing target to make the flying at a high altitude and meet the design requirements, and the control accuracy is up to 2 m.