Recognition of ghosts is a very important problem in multi-sited passive location system based on bearing-Only measurements. In this paper, the discussion is based on a passive location system which contains a fixed sensor and a moving sensor. A new method for ghost recognition is presented. The approach consists of two phases: the first step is to locate the multi-emitter precisely using extended Kalman filter，Secondly recognizing the ghost with space correlation processing. Computer simulations show that the above recognition method has good performance when angle span between two targets is larger than the standard derivation of angle measurements. The accuracy of true target location by this system in multi-emitter condition approaches to the same value as in single emitter condition.