基于分段拟合算法的民用航空机载防撞预警系统设计

Design of civil aviation airborne collision avoidance early warning system based on piecewise fitting algorithms

随着空中飞行航线密集程度的不断提高,民用航空机载防撞系统所发挥的作用越来越大,针对传统民用机载防撞系统在最优航线选择与控制方面的不足,提出一种基于分段拟合算法的机载防撞预警系统设计。硬件设计部分详细介绍了MCU主控芯片和超声波雷达模块,结合报警、数据存储等功能结构对民用航空机飞行过程中的轨迹变化做出预测和分析;设计机载防撞系统的主控程序软件工作流程,利用分段拟合算法求解出每一段飞行距离的控制函数,并将其汇总拟合为趋近于最优航线的最小平方函数,保证飞行的安全性和经济性。仿真结果表明,在该防撞系统的控制下,目标飞机避免了与障碍物飞机之间的碰撞,且该系统控制下的路径偏差也低于传统的防撞预警系统,证明基于分段拟合算法的防撞预警系统更具有应用优势。

With the increasing intensity of air flight routes,the role of civil aviation airborne collision avoidance systems is increasing.In view of the shortcomings of traditional civil airborne collision avoidance systems in optimal route selection and control,a design of airborne anti-collision warning system based on piecewise fitting algorithm is proposed.The hardware design part introduces the MCU main control chip and the ultrasonic radar module in detail,combined with the alarm,data storage and other functional structures to predict and analyze the trajectory changes of the civil aircraft during flight,and to design the main control program software of the airborne collision avoidance system.The workflow uses a piecewise fitting algorithm to solve the control function of each flight distance,and fits it into a least square function that approaches the optimal route to ensure flight safety and economy.The simulation results show that under the control of the collision avoidance system,the target aircraft avoids the collision with the obstacle aircraft,and the path deviation under the control of the system is lower than that of the traditional anti-collision warning system,which proves that the segmentation fitting algorithm based on the anti-collision warning system has more application advantages.