Signal fusion method and system of aircraft detection array based on eddy current detection

Abstract

The invention provides a signal fusion method and system of an aircraft detection array based on eddy current detection. The method comprises the following steps: firstly, acquiring initial eddy current signals acquired by a plurality of sensors and atmospheric environment data of an airspace where the sensors are located; secondly, calculating an atmospheric refractive index according to the atmospheric environment data, and performing propagation path compensation on the initial eddy current signal based on the atmospheric refractive index to obtain a target eddy current signal; determining the spatial position of the vortex core of the aircraft according to the phase difference of the target vortex signals; then combining the atmospheric refractive index and the spatial position to determine the weighting coefficient of each sensor in the aircraft detection array; and finally, performing weighted beam forming on the target eddy current signal by using the weighting coefficient to obtain a fusion detection result. According to the technical scheme provided by the invention, the precision of spatial positioning of the aircraft in a non-uniform atmospheric environment is improved, and the precision and robustness of eddy current signal detection of the aircraft in a complex atmospheric environment are also improved.

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