Ship location identification method based on multi-source data fusion

Abstract

The invention relates to a ship location identification method based on multi-source data fusion. The method comprises the following steps: data calibration, wherein ship location data sent by a radarand ship location data sent by an AIS are received, and time shifting and coordinate transformation are carried out, so that unified time and space reference points can be formed by the ship locationdata sent by the radar and the ship location data sent by the AIS; data fusion, wherein the data fusion is carried out on the radar-measured data and the AIS-measured data, which are subjected to thedata calibration, through the normal membership function method; and coordinate prediction, wherein a ship track is predicted through the Kalman filtering algorithm, so that the coordinates of a shipare estimated. The method provided by the invention has the advantages that the data detected by the radar and the AIS are fused through the multi-source data fusion technology, and the ship track ispredicted through the Kalman filtering algorithm to estimate the coordinates of the ship, so that when the ship enters a prohibited area and tends to anchor, the corresponding ship can be automatically warned or expelled for sea area protection.

Description

technical field [0001] The invention relates to the technical fields of radar target detection, ship automatic identification system (AIS) and computer graphics processing, in particular to a ship position recognition method based on multi-source data fusion. Background technique [0002] Radar is an electronic device that uses electromagnetic waves to detect objects. Radar tracking technology uses radar to emit electromagnetic waves to irradiate the target and receive its echo, so as to obtain information such as distance, speed, azimuth and height from the target to the radar position. Therefore, the radar can obtain information of moving targets as well as stationary targets. AIS can receive information from ships equipped with AIS systems. AIS information includes static information such as the ship's name, call sign, MMSI, length, GPS position, and loaded cargo, as well as navigation information such as ports, weather, and ocean currents. [0003] Multi-source data f...

AI Technical Summary

Problems solved by technology

[0005] In the existing technology, the ship data detected by radar tracking and the ship data detected by AIS are not fused to predict the position of the ship, but only the ship data detected by radar tracking or the ship data detected by AIS are used to predict the position. To some extent, there may be a large deviation in the forecast

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