Target positioning and recognition method
An identification method and target positioning technology, which are applied in the application fields of magnetic anomaly target positioning and identification, vector sensor positioning and magnetic anomaly object detection, and can solve the problem that the convergence speed and convergence are yet to be verified, and the signal-to-noise ratio is difficult to reach 46dB. and other problems, to achieve the effect of reducing detection requirements, high precision, and small amount of calculation.
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[0057] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0058] The basic idea of the present invention is: firstly, analyze the main source of the error of the angle and distance measurement algorithm, find the analytical expression of the error, and find the relevant algorithm to correct the error.
[0059] The technical solution of the embodiment of the present invention is:
[0060] First, the basic principle of the angle and distance measurement algorithm is given. In order to estimate the position information and magnetic moment information of the target, a cubic magnetometer array is designed. See figure 2 As shown, the magnetometer is placed at the 8 vertices of the cube structure. The magnetic anomaly signal generated by the magnetic target is as follows:
[0061]
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