讨论了对辐射源进行被动测向时，用扩展卡尔漫滤波进行目标跟踪，并对目标机动进行判断的方法，在判断目标机动的前提下，用变维卡尔曼滤波完成对目标机动 过程的跟踪。

In this paper,one method for target tracking and manoeuvering detection using the modified gain extended Kalman filter is presented while passive bearing only measurement of a radiation source is discussed.On this base,one way called the dimension changing modified gain extended Kalman filter is proposed for tracking of manoeuvring target.

TN953