A frequency-hopping approach for microwave imaging of large inhomogeneous bodies
作者： W.C. Chew , J.H. Lin
DOI: 10.1109/75.481854
关键词: Microwave 、 Physics 、 Microwave imaging 、 Acoustics 、 Data acquisition 、 Maxima and minima 、 Inverse problem 、 Permittivity 、 Image processing 、 Optics 、 Iterative reconstruction
摘要: A frequency-hopping approach is proposed to process multifrequency CW microwave measurement data so that larger dielectric bodies for imaging can be reconstructed with higher fidelity compared a single-frequency reconstruction. The frequency hopping uses only at few frequencies, and hence reduce acquisition time in practical system. Moreover, the overcomes effect of nonlinearity optimization procedure an algorithm not being trapped local minima. In this manner, objects contrasts could without priori information. We demonstrate reconstruction object 10 wavelengths diameter permittivity profile contrast than 1:2 using
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sci-hub.se 参考文章(10)
W.C. Chew, G.P. Otto, W.H. Weedon, J.H. Lin, C.C. Lu, Y.M. Wang, M. Moghaddam, Nonlinear diffraction tomography-the use of inverse scattering for imaging asilomar conference on signals, systems and computers. pp. 120- 129 ,(1993) , 10.1109/ACSSC.1993.342484
D.T. Borup, O.P. Gandhi, Calculation of High-Resolution SAR Distributions in Biological Bodies Using the FFT Algorithm and Conjugate Gradient Method (Short Papers) IEEE Transactions on Microwave Theory and Techniques. ,vol. 33, pp. 417- 419 ,(1985) , 10.1109/TMTT.1985.1133021
M. Moghaddam, W. C. Chew, M. Oristaglio, Comparison of the born iterative method and tarantola's method for an electromagnetic time‐domain inverse problem International Journal of Imaging Systems and Technology. ,vol. 3, pp. 318- 333 ,(1991) , 10.1002/IMA.1850030405
Y. M. Wang, W. C. Chew, An iterative solution of the two-dimensional electromagnetic inverse scattering problem International Journal of Imaging Systems and Technology. ,vol. 1, pp. 100- 108 ,(1989) , 10.1002/IMA.1850010111
W.C. Chew, Q.-H. Liu, Inversion of induction tool measurements using the distorted Born iterative method and CG-FFHT IEEE Transactions on Geoscience and Remote Sensing. ,vol. 32, pp. 878- 884 ,(1994) , 10.1109/36.298015
A. Broquetas, J. Romeu, J.M. Rius, A.R. Elias-Fuste, A. Cardama, L. Jofre, Cylindrical geometry: a further step in active microwave tomography IEEE Transactions on Microwave Theory and Techniques. ,vol. 39, pp. 836- 844 ,(1991) , 10.1109/22.79111
N. Joachimowicz, C. Pichot, J.P. Hugonin, Inverse scattering: an iterative numerical method for electromagnetic imaging IEEE Transactions on Antennas and Propagation. ,vol. 39, pp. 1742- 1753 ,(1991) , 10.1109/8.121595
J.H. Lin, C.C. Lu, Y.M. Wang, W.C. Chew, J.J. Mallorqui, A. Broquetas, C. Pichot, J.-C. Bolomey, Processing microwave experimental data with the distorted Born iterative method of nonlinear inverse scattering Proceedings of IEEE Antennas and Propagation Society International Symposium. pp. 500- 503 ,(1993) , 10.1109/APS.1993.385298
W.C. Chew, Y.M. Wang, Reconstruction of two-dimensional permittivity distribution using the distorted Born iterative method IEEE Transactions on Medical Imaging. ,vol. 9, pp. 218- 225 ,(1990) , 10.1109/42.56334
M.A. Stuchly, S.S. Stuchly, DIELECTRIC PROPERTIES OF BIOLOGICAL SUBSTANCES–TABULATED The Journal of microwave power. ,vol. 15, pp. 19- 26 ,(1980) , 10.1080/16070658.1980.11689181