反辐射无人机制导系统仿真及飞行试验技术的研究

【作者】 项宗友；

【导师】 杨军；

【作者基本信息】 西北工业大学 ， 导航、制导与控制， 2002， 硕士

【摘要】 本文主要研究了反辐射无人机制导系统的仿真和有关飞行试验及其结果分析的一些方法，并对反辐射无人机的制导精度进行评估。首先进行反辐射无人机系统的随机建模，包括导引头、制导律、自动驾驶仪，机体动力学，相对运动学等，建模时必须考虑随机因素的影响。然后以此模型为基础，根据不同的条件，对无人机模型进行仿真，分析相关性能，重点是风和导引头对制导精度的影响。在飞行试验中，要对无人机的飞行控制系统的性能进行评估，运用系统辨识的方法，对试验数据进行辨识，获得其降阶模型，从而对其性能进行评估。对飞行试验的靶试结果的分析，采用了两种方法：零次靶试和小子样靶试，零次靶试利用了无人机可拉起后进行重复攻击的特性，以减少试验损失，在得到落点数据后，运用Bayes方法对落点信息和仿真信息进行分析，获得其制导精度。更多还原

【Abstract】 In this paper, the simulation of the terminal guidance system and precision analysis for the anti-radar drone are researched, and the flight test of the drone and the analysis of its result are studied. Firstly, the random mathematics model of the guidance system is set up, with the random factors such as the seeker, the guidance law, the automatic pilot, the dynamics, the relative kinematics taken into account. Then, under the base of the model, according to the various condition,the model of the drone is simulated, and relative performance is analyzed. The influence of the wind and the seeker to precision guidance is emphasized. In flight test, using the method of system identification,the model of the dropped order is taken, then the performance of control syetem of the drone is evaluated. In order to analysize the precision guidance of the flight test, two method is usedizero time sample test and small sample test. According to the re-attacking property of the drone using the method of zero times sample test, the loss of the drone in flight test is decreased. After the data of hitting point is gotten in test, the Bayesian method, which is based on the data of the test and the information of the simulation before the test, is used to analysize the precision guidance.更多还原