Title :
Inverse scattering in microwaves: maximum entropy method for electromagnetic imaging
Author :
Dau Thi Thuy Lan;B. Michel
Author_Institution :
Lab. d´Electromag. Microondes et Optoelectron., ENSERG, Grenoble, France
Abstract :
In the paper, an efficient reconstruction algorithm based on the maximum entropy method is proposed in order to solve the ill-posed inverse problem in electromagnetic scattering. The problem confines itself to a solution of a set of non-linear equations. It is reasonable to apply a conjugate gradient process which can be reduced the effect of the ill-posed characters of the system. The results are given and discussed for different current distributions and the influence of the measurement distance and of the variance of the noise are studied.
Keywords :
"Inverse problems","Microwave theory and techniques","Entropy","Electromagnetic scattering","Microwave imaging","Acoustic scattering","Acoustic noise","Frequency","Electromagnetic fields","Microwave measurements"
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1993. IGARSS ´93. Better Understanding of Earth Environment., International
Print_ISBN :
0-7803-1240-6
DOI :
10.1109/IGARSS.1993.322550