Linear sparse array beam property analysis method and device for unmanned aerial vehicle cluster

The invention provides a linear sparse array wave beam property analysis method and device for an unmanned aerial vehicle cluster, and belongs to the field of sparse array wave beam analysis. Aiming at the near-field sparse distribution characteristic of an unmanned aerial vehicle cluster array, firstly, an array signal model corresponding to the near-field sparse distribution characteristic is constructed; and carrying out approximate analysis on the phase difference function of each array element signal in the signal model by applying a Taylor expansion to obtain a near-field beam forming simplified implementation method for carrying out linear frequency modulation pulse compression processing in a spatial domain. From the angle of signal spectrum folding caused by space undersampling, an analytical expression of near-field beam grating lobe distribution is analyzed and provided. The method provides theoretical support for improving communication, electronic reconnaissance and interference capabilities of a