Observability enhancement analysis of intermittent maneuver guidance law with aiming error
Aiming at the problem that the guidance system with proportional guidance under aiming error has weak observability and low estimation accuracy of guidance information,a method of intermittent maneuver guidance with enhanced observability is proposed,and the parameters of guidance method are optimized by constructing Gaussian Process model.A quantitative analysis index of system observability is constructed based on the Lie derivative,and then the effectiveness of the observability enhancement method is evaluated by using this index.The mapping relationship between guidance law parameters and observability indexes is reconstructed by using regression analysis method,and the threshold parameters which can stably guarantee the observability of the guidance system are determined.Numerical simulation results show that the proposed guidance method can effectively improve the estimation accuracy of the filter and reduce the miss distance of the guidance system.
aiming errorobservability analysisobservability enhancementintermittent maneuver guidanceGaussian Process regressionmiss-distanceMonte-Carlo simulation
NETL
NSTL
万方数据
