Precision-guided Loop Simulation

This paper takes a semi-active laser precision guided missile as the background, Sets up the mathematic model and simulation model for the missile system, and it has set forth the relationship of modeling and simulation with respect to VV&A. The paper has also discussed the key technological problems in hardware-in-the-loop simulation for precision guidance and confined with practical experiences, it has explained some practical methods for precision guidance hardware-in-the-loop simulation. It has analysed the influence of onboard compute algorism error on the results of hard-in-the-loop simulation, the effects of system noise, zero position error in the hardware-in-the-loop simulation loop and precision of simulation equipment on the simulation results. The paper has discussed the concept and feasibility of integration of hardware-in-the-loop simulation test with flight test and proposed that hardware-in-the-loop simulation may be taken as a part of gualification test and then add some live missile flight tests to complete the test items which are different to make in hardware-in-the-loop simulation and a feasible real time hardware-in-the-loop simulation network is given.The research methods discussed in this paper can be applied directly in the hardware-in-the-loop simulation for various models development.