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命中精度是制导武器中最重要的指标之一,故此在进行半实物仿真前需要考虑影响命中精度的多种因素,进行数字仿真研究。首先简单介绍了命中精度的表示与计算,然后阐述了仿真中的几个主要模型,详细分析影响制导炸弹命中精度的各种误差干扰源,最后通过六自由度数字仿真深入分析了多种误差干扰对命中精度的影响及影响大小。仿真结果表明:影响命中精度的主要因素是GPS误差;在多种误差干扰条件下,系统具有较好的命中精度,为半实物仿真打下坚实的基础。
Hit accuracy is one of the most important indicators of guided weapons, so in the semi-physical simulation need to consider the hit accuracy of a variety of factors, the number of simulation studies. Firstly, the expression and calculation of hitting precision are introduced briefly. Then, several main models in the simulation are expounded. Various error sources that affect the hitting accuracy of guided bombs are analyzed in detail. Finally, a series of error interferences Impact on hit accuracy and impact size. The simulation results show that the main factor affecting the accuracy of hits is GPS error. Under various error conditions, the system has better hitting accuracy and lays a solid foundation for semi-physical simulation.