Multi-target flight path identification instrument based on dual-channel pre-training

The invention discloses a multi-target flight path recognition instrument based on dual-channel pre-training. The multi-target flight path recognition instrument is formed by connecting a flight path database, an aircraft radiation source receiver and an upper computer. And the database is used for storing different types of aircraft flight path signals. The upper computer comprises a self-supervised pre-training module, a supervised training module and a flight path recognition module. Data in the database is used for carrying out self-supervised pre-training and supervised training on a flight path recognition model in sequence, and the trained model is stored in the flight path recognition module. And the receiver receives an external flight path signal and transmits the external flight path signal to the flight path identification module of the upper computer for identification. According to the method, the self-supervised pre-training link is innovatively introduced to pre-train the flight trajectory rec