航天飞行器座舱可信度评估仿真研究

Shuttle cockpit credibility evaluation simulation research

对航天飞行训练模拟器(AFTS)模拟座舱的可信度进行研究,可以提高模拟座舱性能。由于航天飞行器中的空间视觉环境和内部布局存在一定的特殊性,对可信度进行评估时,需要考虑视觉因素和座舱特点,传统的可信度评估方法,容易受到周围环境影响因素较多,且没有充分考虑视觉因素与座位特点,导致对模拟座舱可信度评估不准确的问题。提出一种新的模拟座舱可信度评估方法,以人的视觉系统(HVS)工作原理为依据,结合三构件、五要素和全参考型设计思想,在对航天飞行器座舱空间图像转换为二维图像后,对转换后的单幅图像边缘进行相似度评估,并结合利用权重法对空间视觉环境综合相似度进行评估,完成航天飞行器座舱可信度评估,将航天飞行器座舱内不同要素的权重值作为可信度评估的标准,仿真结果表明,航天飞行器模拟座舱仿真可信度具有较高的评估准确度。

In this paper, we proposed a new credibility evaluation method of cockpit in aerospace craft. Firstly, we converted the cockpit image to two - dimensional image. Then we integrated design concept of three components, five factors and full reference to evaluate similarity of the converted single image edge. Then we evaluated the comprehensive similarity of space visual environmental integrated with weighting method to achieve the credibility evaluation. The weights of different elements in aerospace craft cockpit were used as standard of credibility evaluation. The simulation results show that the credibility evaluation has high precision.