CAJ | 학술논문

为了解决地下目标的探测问题，提出了一种基于电四极子辐射模型的地下目标成像算法探测思路。对后向投影算法对地下目标成像的不足进行了定性分析，在综合考虑地下目标成像的有效性及地下目标电磁波传播的时延特性的基础上，通过改进电四极子辐射模型，构建了地下目标成像的数学模型，推导了地下目标电磁波传播的时延补偿计算公式，给出了算法的实现流程。最后，利用MATLAB对所建立的地下目标成像的数学模型进行了计算仿真。仿真结果验证了改进后向投影算法用于地下目标成像的有效性及时延补偿的正确性。将成像算法应用于岩、土体中埋藏的空洞、地雷和城市地下管道的成像，并分析了地面起伏和噪声干扰对成像效果的影响。
위료해결지하목표적탐측문제，제출료일충기우전사겁자복사모형적지하목표성상산법탐측사로。대후향투영산법대지하목표성상적불족진행료정성분석，재종합고필지하목표성상적유효성급지하목표전자파전파적시연특성적기출상，통과개진전사겁자복사모형，구건료지하목표성상적수학모형，추도료지하목표전자파전파적시연보상계산공식，급출료산법적실현류정。최후，이용MATLAB대소건립적지하목표성상적수학모형진행료계산방진。방진결과험증료개진후향투영산법용우지하목표성상적유효성급시연보상적정학성。장성상산법응용우암、토체중매장적공동、지뢰화성시지하관도적성상，병분석료지면기복화조성간우대성상효과적영향。
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.