Maneuvering Target Virtual Closed-loop Fire Principle

The antiaircraft artillery is a necessary element of our country's air defense and anti-missile weapon system. So it's urgent to raise accuracy of antiaircraft artillery system by shooting amending methods. The traditional closed-loop amending must have already known miss distance, which is difficult to detect. It needs lots of live ammunitions and costs high price. So it is difficult to realize. But fictitious closed-loop amending doesn't need live ammunitions, low cost and can reduce the error because of the real target model doesn't match the model assumed, which is useful to improve fire control system.The current fictitious closed-loop amending has some shortcomings. Firstly, it considers target following uniform linear motion whether it's non-motorized or tactical. So it may cause error. Secondly, it doesn't consider the error resulting from abnormal meteorological when solving shooting problem, that is it supposes the environment when shooting is standard meteorological, but it's not so.Based on an engineering project, firstly, this paper deals with fictitious closed-loop amending in the aspects of solving shooting problem, maneuvering target tracking, establishing the model of shooting error and applies "present" model to fictitious closed-loop amending when target is tactical. As well as the theoretical analysis, the results of numerical simulation show the more satisfactory performances by using this model.Secondly, this paper considers the error resulting from abnormal meteorological, so it matches reality more nearly. The results of numerical simulation show the shooting error become less under this condition.Finally, for simulation data, called near practical data when target is non-motorized or tactical in the paper, the simulation is carried out to show the shooting error is decreasing when changing the model and considering meteorological, and can supply a reference for the application in engineering.