基于飞行数据的航迹精度的优化与分析  

Optimization and Analysis of Flight Path Accuracy Based on Flight Data

作　　者：徐开俊[1] 李成 林浩冬 张榕 肖成坤 Xu Kaijun;Li Cheng;Lin Haodong;Zhang Rong;Xiao Chengkun(Civil Aviation Flight University of China,Guanghan 618300)

机构地区：[1]中国民用航空飞行学院,广汉618300

出　　处：《现代计算机》2022年第2期91-96,共6页Modern Computer

基　　金：训练航迹概率云的智能坍缩修复(J2021-004);卫星导航抗干扰关键技术研究(J2019-27)。

摘　　要：Cessna172R、DA40等小型训练飞机中的综合航电系统实时记录了经度、纬度、速度、航向、燃油流量等类别的参数,其数据存储在SD卡中。首先,对所需数据进行提取和清洗,将平滑后的经纬度数据结合精密测绘的机场跑道坐标数据进行坐标系的转换。其次,针对GPS单点定位误差和航行速度的特点对数据建立数学优化模型,并通过三角窗函数对数据进行分段处理,使数据处理速度更快,同时能保证数据的准确性和连续性。最后,得到精确的航迹数据,从而通过修正后的航迹对飞行员的飞行技术进行分析评估,用数据评判来考核学员驾驶水平,能够在一定程度避免教练的主观性,减少人力成本,为飞行员驾驶水平的核心胜任力标准提供精确的数据支持。Cessna172R, DA40 and other small training aircraft in the integrated avionics system real-time record longitude,latitude, speed, heading, fuel flow and other types of parameters, the data stored in SD card.First of all, the required data are extracted and cleaned, and the smoothed latitude and longitude data are combined with the precision-mapped airport runway coordinate data for coordinate conversion. Secondly, according to the characteristics of GPS single point positioning error and navigation speed, a mathematical optimization model is established for the data, and the data is segmented by triangular window function,which makes the data processing faster and ensures the accuracy and continuity of the data.Finally, get accurate track data, thus through the revised track analysis of pilots flying technology assessment, with data evaluation and examination of learner’s level,can avoid to a certain extent the coach’s subjectivity and reduce labor costs, providing accurate data support for the pilot level of core competency standards.

关 键 词：航迹优化 Cessna172 飞行误差 

分 类 号：V323[航空宇航科学与技术—人机与环境工程]