Distributed magnetic target identification method of magnetic detection

Abstract

The invention discloses a distributed magnetic target identification method of magnetic detection, and belongs to magnetic detection technologies. N unmanned aerial vehicles (UAVs) with atom magnetometers are used to measure the local magnetic field intensity, magnetic anomaly signals are determined after carrying out magnetic compensation on measuring values, and a magnetic field intensity calculating model is established to resolve a magnetic moment of a magnetic anomaly target and position distribution condition of the magnetic anomaly target relative to the UAVs. A traditional single-UAV detection manner in which an optical pump magnetometer serves as a sensitive unit is improved into a detection manner in which the atom magnetometer serves as the sensitive unit and the multiple UAVs for the network, a detection system can detect weak signals more effectively, and the magnetic anomaly can be detected more efficiently and positioned more precisely by forming the network by the UAVs.

Description

technical field [0001] The invention belongs to the magnetic detection technology, and in particular relates to a magnetic detection and magnetic target recognition method based on multi-unmanned vehicle type networking. Background technique [0002] The geomagnetic field generally changes slowly and regularly with time and space. When there is a magnetic substance, the magnetic field of the substance itself and the magnetic field induced by the geomagnetic field will be superimposed on the geomagnetic field, so that the geomagnetic field in a certain area An exception occurred within. There are a large number of metal minerals in the land and ocean of the earth. Underwater military equipment such as submarines and mines are mainly composed of metal materials, and the magnetic materials in them will cause abnormalities in the surrounding geomagnetic field. Therefore, by detecting and identifying abnormal information of the geomagnetic field, the detection and identification...

AI Technical Summary

Problems solved by technology

Due to the high noise of the optical pump magnetometer, it is difficult to be sensitive to weak magnetic anomaly signals, which limits its detection and identification of weak signal magnetic anomaly targets; at the same time, a single large-scale manned aircraft is used for flight detection. When it is relatively large, a large manned aircraft needs to fly back and forth multiple times until it flies over the top of the magnetic target to realize the detection, identification and positioning of the magnetic anomaly signal

Therefore, the magnetic target recognition method of the traditional magnetic detection system has defects such as low detection efficiency and easy loss of moving targets, which limits its application in the fields of national economic development and national defense construction.

Images