Systems Engineering and Electronics ›› 2026, Vol. 48 ›› Issue (5): 1492-1501.doi: 10.12305/j.issn.1001-506X.2026.05.05

• Electronic Technology • Previous Articles     Next Articles

Research on full-focus fusion locationing imaging method of circular array phased array

Qi CHANG, Yong XU, Daibing HE, Heng ZHAO   

  1. School of Mechanical and Precision Instrument Engineering,Xi’an University of Technology,Xi’an 710048,China
  • Received:2025-03-13 Online:2026-05-27 Published:2026-05-27
  • Contact: Qi CHANG

Abstract:

To address the large positioning blind zone and false imaging issues existing in phased array linear arrays, a full-focus fusion locationing imaging method is proposed based on a circular array. This method arranges the circular array at the center of the structure, and each linear array in the diameter direction of the array collects full matrix phased control data. The damage scattering signals obtained by each linear array are respectively subjected to beam correction and amplitude compensation. The results of each linear array are superimposed and fused by the full-focus fusion method to reduce the monitoring blind area and eliminate artifacts through mutual complementation in all directions, thereby achieving relatively accurate location imaging of damage. The results show that this method not only highlights the damage information and reduces artifacts in the imaging results, but also improves the accuracy of damage location.

Key words: phased array, Lamb wave, defect inspection, full-focus imaging

CLC Number: 

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