【摘要】 机载单站无源定位系统具有作用距离远、机动性好、掩蔽接收、不易被对方发觉的优点,并且能与其他平台协同使用,有着广阔的应用前景。提出了在三维中以螺旋运动为机动方式、基于修正增益扩展卡尔曼滤波(MGEKF),对三维运动辐射源的无源定位跟踪算法,并对此进行了可测性分析,最后给出了计算机的仿真结果。得出的结论是:三维中利用螺旋运动的机动方式,算法可以在很短的时间内收敛,能够较快地实现对目标的定位。更多还原

【Abstract】 The airborne single-observer passive locating system has the advantages of far effective distance,secret receiving and low probability being detected.It can also cooperate with other platforms,thus has broad prospects for application.In this paper,spiry trajectory method for bearings-only TMA and a location algorithm for 3-D moving emitters based on MGEKF are given.The observability conditions are analyzed.The computer simulation results are presented.The conclusion is: by using spiral trajectory method for bearings-only TMA,the algorithm can be converged in a very short time,and the target can be located quickly.更多还原