Improved Back-proj ection Algorithm Used in Underground Target Detection
LIU Zhi
HU Guo-ping
LONG Ge-nong
LIU Wen-li
Abstract：In order to solve the problem of targets detection underground,an imaging algorithm is proposed based on the model of electric quadruple radiation.The lack of back-proj ection algorithm is analyzed quali-tatively,a mathematical model of the underground target imaging,which proceeds from the effectiveness of underground targets imaging and delay characteristics of electromagnetic wave propagation,is built by improving the model of electric quadruple radiation,and the implementation process of the algorithm is given based on the derivation of time-delay compensation formula.MATLAB simulation verifies that the improved back-proj ection imaging algorithm is effective in detecting target underground and corrective in realizing the time-delay compensation.Then the algorithm is applied to the imaging of holes and landmines hided in the rock soil mass as well as to the urban pipeline underground,the effect of undulating ground and noise to imaging results is also analyzed.
Keywords：underground target imagingback-proj ection algorithmelectric quadrupletime-delay delay compensation
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 71-75 )