An experimental technique for in vivo permittivity measurement of materials at microwave frequencies

Abstract

In this article we shall introduce an iterative joint transform operation for multireference detection utilizing composite intensity compensation filtering. This technique essentially uses the normalized correlation peak intensity values as the iterative feedback into the input and Fourier planes to update the weight coefficients for the reference patterns and the composite intensity compensation filter. As shown in the simulated results, this technique can detect highly similar objects which cannot normally be differentiated with the conventional joint transform correlator. The effect due to noise is also investigated, in which we have shown that the technique improves the performance of the joint transfoim correlation. 0 1994 John ABSTRACT The polarizability expressions for bianisotropic scatterers are open complicated expressions of the material parameters. This communication *ats the question of how the dyadic inversion operations needed in the expressions can be carried out such that they perfom well. The particular polarizabilities of the biaxial chiral sphere are shown in component form.

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