Wind disturbance compensation robust guidance law for re-entry vehicles based on an improved filtering method
To solve the problem of gliding re-entry vehicles being affected by wind interference from near space,the impact point error caused by the wind field is analyzed using the predictor-corrector guidance method.The error is estimated online by the adaptive filtering method,and the position of the terminal point is adjusted to compensate for the impact of the wind field on the re-entry path of the vehicle.At the same time,the amplitude parameter of the bank angle is determined by receding horizon optimization so that the parameter is updated with the change in the range to go,thereby improving the terminal guidance accuracy.Finally,the Monte Carlo method is employed to simulate the flight path under the influence of different wind fields,and the optimization effects of the guidance law are compared.The simulation results show that the standard deviation of the predicted wind speed is within 0.3,and the designed guidance law can control the end velocity within 15 m/s,with an impact error of less than 800 m,which is close to the landing point in a calm state.
adaptive filteringwind fieldguidance lawbank anglere-entry vehiclepredictive correction meth-odmonte carlo simulationrobust guidance law
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维普
