Real-time evaluation method for sea radar track precision based on AIS information

The invention belongs to the technical field of sea radar performance evaluation, and particularly relates to a sea radar track precision real-time evaluation method based on AIS (Automatic Identification System) information, which comprises the following steps of: 1) setting a sliding window time length and a step length, and connecting and accumulating radar target track data and AIS information sequence data acquired by AIS acquisition equipment; 2) preprocessing the radar target track data to obtain a preprocessed radar target track; when the accumulated data duration reaches the sliding window duration, the sliding window slides by a step length, and AIS information sequence data are utilized to screen the AIS information sequence to obtain a preprocessed AIS track; 3) carrying out track matching association on the preprocessed radar target track and the preprocessed AIS track, respectively calculating ship target track precision data with standard source matching and estimating ship target track precisi