Hardware In-the-loop Simulation Of Semi-active Laser-guided Aerial Bomb

In this paper,the semi physical simulation methor for the semi active laser guided bomb is studied.The hardware in the loop simulation technology has the advantage which mathematical simulation has not.amd it has higher veracity and accuracy,which represents the future development direction of simulation.In recent years,all military powers are committed to the development of hardware in the loop simulation technology,and also gradually reflects its importance.In this paper,a semi physical simulation system for laser semi-active guidance bomb is established,and a set of systematic,universal and standardized simulation method is formed,and the hardware in the loop simulation is carried out.The working principle and performance characteristics of the platform seeker are analyzed,and the scheme design of the hardware in the loop simulation system is developed.the hardware in the loop simulation system is built according to the existing equipment int the laboratory,including the five axis turntable,the laser target simulator,the rudder load simulator,the simulation computer,the central control system,etc..Describes the project,process and model of the semi physical simulation experiment.The effects of various error sources on the simulation test are analyzed.A semi physical simulation model,including missile model,elastic model,and the sight of target seeker precession output model,guidance control model etc..Only accurate establishment of relevant models can ensure the authenticity and reliability of the subsequent simulation test.The missile model in computer simulation using Matlab programming,and play the target line of sight model gives the position of the laser spot,the seeker output model in the early stage of precession in mathematical simulation to verify the effect of.The characteristics of laser target are analyzed emphatically.According to the actual situation,the test adopts the direct irradiation target simulator.On the basis of the above modeling analysis,the hardware in the loop simulation method is studied.Including the selection of key indicators of simulation,the simulation system of the overall simulation design principles,as well as the simulation test should follow the various stages of the test process,and gradually complete the simulation of large closed loop test.The corresponding VVA method carries on the comparative analysis of the simulation results,the results show that the semi physical simulation method is reliable.Through the system,generalization and standardization,it has very high practical value,can be extended to the follow-up project.