基于空频域信息的单站无源定位可观测分析

对利用空频域信息的单站无源定位方法进行可观测性分析。针对非线性系统的可观测性理论需要计算复杂的雅克比矩阵的问题，提出把观测方程先经过伪线性化处理，然后运用线性系统的可观测性分析的理论，对匀速、匀加速直线运动进行了具体分析，得出只要目标不朝观测站作径向运动都是可以对其进行观测的。实验结果也验证了分析结论的正确性。

Research On the Observability for Single Observer Passive Location Based On Spatial-frequency Domain Information

The observability of the method for single observer passive location using the spatial-frequency domain information is analyzed. Observability analysis is the basis of location tracking algorithm. The study on tracking algorithm is useful only when the target meet the observable conditions. As the observability of nonlinear system need calculation the complex Jacobian matrix, a new analysis method is presented. The pseudo-linear processing for the measurement equation is used, and then the observability analysis of the theory of linear systems is uesd to analyze the observable conditions of constant velocity target and constant acceleration target. The maneuvering target include constant accelerated motion and constant turn rate motion. As long as the target do not make radial movement toward the observer can be observed. The experimental results show that the conclusions are correct.