Single-station passive area positioning method for fixed monitoring station

The invention discloses a single-station passive area positioning method for a fixed monitoring station. The method includes the steps that first, the movement properties of monitored targets are judged according to the angle change rate obtained through measurement, whether the targets belong to high-speed moving targets or slow-moving targets or fixed targets is determined, and different positioning methods are used for different targets; second, if the targets are the high-speed moving targets, a DOA-DF method, namely an azimuth-Doppler frequency combined positioning method, is used for calculating the movement trails of the targets; third, if the targets are the slow-moving targets or the fixed targets, equipment database matching is conducted first, and equipment transmitting power information and transmitting antenna gain priori knowledge are searched for in a matching mode; fourth, if the targets are the slow-moving targets or the fixed targets, equipment information does not exist in each equipment database, the targets cannot be positioned temporarily at this time, an original IQ signal of a target signal and other signals are used for analyzing parameters to be stored, and positioning operation can be conducted on the targets when the targets need to be positioned next time.