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...

Examples

Embodiment Construction

[0024] The present invention will be further described below by means of the accompanying drawings and specific embodiments.

[0025] like figure 1 As shown, a multi-UAV network is used to detect and identify magnetic anomaly signals, and an atomic magnetometer is used as a magnetic field measurement unit to achieve efficient identification and high-precision positioning of magnetic anomaly signals.

[0026] In terms of the performance of the atomic magnetometer, it is required that the noise peak value of the atomic magnetometer used should be ≤10pT, so as to distinguish the magnetic anomaly signal whose amplitude is greater than 10pT.

[0027] In terms of network UAV performance, the number of UAVs used in the network is required to be 3 or 5. Type array arrangement, etc.

[0028] In terms of magnetic anomaly signal identification, the identification of magnetic anomaly signals is based on the magnetic field comparison and matching of magnetic target characteristics, and a...

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...

Examples

Embodiment Construction

[0024] The present invention will be further described below by means of the accompanying drawings and specific embodiments.

[0025] like figure 1 As shown, a multi-UAV network is used to detect and identify magnetic anomaly signals, and an atomic magnetometer is used as a magnetic field measurement unit to achieve efficient identification and high-precision positioning of magnetic anomaly signals.

[0026] In terms of the performance of the atomic magnetometer, it is required that the noise peak value of the atomic magnetometer used should be ≤10pT, so as to distinguish the magnetic anomaly signal whose amplitude is greater than 10pT.

[0027] In terms of network UAV performance, the number of UAVs used in the network is required to be 3 or 5. Type array arrangement, etc.

[0028] In terms of magnetic anomaly signal identification, the identification of magnetic anomaly signals is based on the magnetic field comparison and matching of magnetic target characteristics, and a...

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