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飞行器无源定位技术的关键是建立定位模型及其快速优化算法。研究了基于地球同步卫星与飞行器测向阵列之间方向角的无源定位技术。利用空间向量分析方法和最小二乘法,在多颗观测卫星的情况下提出了飞行器的静态定位数学模型;在观测卫星较少,且飞行器处于运动状态的情况下,提出了飞行器的动态定位数学模型。借助对相关参数的假设和搜索算法,分别对2个模型进行了模拟计算,较好地实现了2种情况下飞行器的无源定位。
The key of the aircraft passive location technology is to establish the location model and its fast optimization algorithm. The passive location technology based on the directional angle between the geostationary satellite and the aircraft directional array is studied. Using the method of space vector analysis and the least squares method, the static positioning mathematical model of the aircraft is proposed in the case of multiple observation satellites. In the case of fewer observation satellites and the aircraft being in motion, the dynamic positioning mathematical model of the aircraft is proposed . With the assumptions of the relevant parameters and the search algorithm, two models were simulated respectively, and the passive location of the aircraft was well achieved in two cases.