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为了对翼伞归航算法的航迹控制有效性进行验证,可以采用空投试验或仿真分析2种方法.空投试验获取航迹数据准确性高,但存在人员和物资投入成本高、协调工作量大的缺点.而仿真分析具有成本低、易实现的优点,但由于气象条件和翼伞本身气动特性的不确定性,仿真结果与真实空投数据会有差异.如果在仿真分析的过程中采用真实空投获取的翼伞关键参数建立翼伞模型,则仿真方法的准确性会得到很大的提升,是一种低成本验证归航控制算法航迹准确性的优选方案.对大型翼伞归航控制航迹仿真分析方法进行了研究,并通过其仿真数据与真实空投数据的比较说明了该仿真方法的有效性和可行性.通过对风的仿真说明了风速和风向对翼伞飞行航迹的影响.结果表明,该方法可以辅助优化翼伞归航控制算法设计,是一种低成本易实施的验证方式,可为控制算法的验证、分析和改进工作提供良好的参考依据.
In order to validate the effectiveness of the flight path control of wing parachute algorithm, we can use two methods, that is, airdrop test or simulation analysis.Tracking data obtained by airdrop test has high accuracy, but there are high cost of personnel and material inputs and large coordination workload However, due to the meteorological conditions and the uncertainty of the aerodynamic characteristics of the parafoil itself, there is a difference between the simulation results and the actual airdrop data.If the real airdrop is used in the process of simulation analysis, Obtained the wing parachute key parameters to establish wing parachute model, the accuracy of the simulation method will be greatly improved, which is a low cost way to verify the trajectory accuracy of the airborne control algorithm.On the large wing parachute control The simulation analysis method is studied, and the comparison between the simulation data and the real airdrop data shows that the simulation method is effective and feasible.Through the simulation of the wind, the influence of the wind speed and the wind direction on the wing flight path is illustrated. The results show that this method can be used to optimize the design of parachute control algorithm, which is a low-cost and easy-to-implement verification method that can be used to verify the control algorithm Analysis and improvement work to provide a good reference.