基于模型的大气数据计算机实现

针对无人机用大气数据计算机,为使其满足适航审定要求,提出基于模型的实现方法。首先介绍了大气数据计算机获取适航的方式,并以获取技术标准规定项目批准书(CTSOA)为驱动,按照大气数据计算机CTSO标准提出满足最低性能标准的系统需求,将系统需求进行分解选择合适的传感器及硬件平台。随后对系统功能进行详细设计,并按照DO-178B规范完成大气数据计算机的模型搭建和仿真验证。验证结果表明,基于模型的大气数据计算机满足系统所提各项指标,开发流程符合DO-178B标准。

Model Based Air Data Computer Implementation

For the air data computer of UAV, in order to meet the requirements of airworthiness certification, the model-based implementation method is put forward. First, the method of obtaining airworthiness by the air data computer is introduced, and aiming to obtain China Civil Aviation Technical Standard Order Aproval (CTSOA), the system requirements that meet the minimum performance standards are proposed in accordance with CTSO standards. Second, the system requirements are decomposed to select appropriate sensors and hardware Platform. Finally, the detailed design of the system functions is finished, and the model construction and simulation verification of the atmospheric data computer are completed in accordance with the DO-178B specification. The verification results show that the model-based atmospheric data computer meets the requirements of the system and the development process conforms to the DO-178B standard.