针对传统静态解析方法评估GPS干扰效能局部片面,难以直观反映GPS干扰规律的问题,提出以一种基于仿真实验评估GPS干扰效能的动态方法。根据制导炸弹运动、引导原理和GPS干扰原理,建立相应数学模型,并使用Simulink软件模拟SINS/GPS制导炸弹受到GPS干扰后的弹道轨迹,以炸弹落点偏差为效能指标评估GPS干扰效能。最终通过仿真实验数据分析,得出GPS干扰源在不同部署方式下的干扰效能优劣结论。

SInce traditional effectiveness evaluation method of GPS jamming is based on static analysis, measure of effectiveness and conclusion of evaluation are too hard to understand and can't reveal rules of jamming. In this paper, a new evaluation methodology of GPS jamming based on combat simulation was proposed. Firstly, the distance between bomb droppoint and target was selected as measure of effectiveness; Secondly, mathematical models were established based on theories of jamming and aerodynamics; Thirdly, GPS jamming effectiveness was valuated through simulating the trajectory of SINS/GPS guided bomb moving after GPS jamming; Finally, the conclusion of GPS jammer deployment was got based on simulation result.