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可观测性分析是单站无源定位领域的基础性问题。首先利用Grammian矩阵正定性来判定系统的可观测性,然后借鉴传统的多站测向交叉无源定位的思想,采用几何分析方法,对目标的可观测性进行直观的分析,最后获得了应用无人机进行单站定位时的可观测性结论。
Observability analysis is a fundamental issue in the field of single-station passive location. First of all, the observability of the system is judged by the positive definiteness of Grammian matrix. Then, based on the traditional idea of crossed passive positioning with multi-station direction finding, the geometric analysis method is used to analyze the observability of the target intuitively. Finally, Observability conclusion when man-machine locates single station.