Two-dimensional near-field microwave imaging based on stolt-interpolation
Two-dimensional near-field microwave imaging based on stolt-interpolation
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发表时间：
2007
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通讯作者：
H. Guo-yu
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作者：
H. Guo-yu
提出了一种基于弱散射近似模型的二维近场微波成像算法。利用理想金属球散射的回波构造成像系统的点扩散函数，并利用点扩散函数消除谱域测量系统的影响。通过Stol插值法进行波前校正，并通过FFT实现目标的重构。通过计算机仿真和实验结果验证了该算法的有效性。获得了金属圆柱体和导弹模型的Ku波段二维近场微波图像。
An algorithm of two-dimensional near-field mcrowave imaging is presented on the basis of the weak scattering approximation model.The point spread function of imaging system is constructed with the echo scattered by the perfect metallic sphere,then it is employed to eliminate the effect of measurement system in spectrum domain.By the stolt-interpolation,the correction of wavefront is carried out and the reconstruct of target is implemented via FFT.The resuluts of some computer simulations and experiments are provied to verify the effectivenes of the algorithm,and the two-dimensional near-field microwave images at Ku-band are obtained for a metallic circular cylinder and a missile model.