Multistatic-multiview resolution from Born fields for strips in Fresnel zone

Area of Science:

• Electromagnetics and wave propagation
• Inverse problems and computational imaging

Background:

• Reconstructing dielectric objects from scattered fields is crucial in various imaging applications.
• Understanding resolution limits is essential for accurate object characterization.

Purpose of the Study:

• To determine the achievable resolution limits in reconstructing a 2D dielectric strip object.
• To analyze the impact of measurement configuration on reconstruction accuracy.

Main Methods:

• The inverse scattering problem is formulated using the Born approximation.
• Linearized scattering operator inversion and singular-value decomposition (SVD) are employed.
• Analysis is conducted in a 2D scalar geometry with a single-frequency multistatic-multiview configuration.

Main Results:

• Singular-value decomposition reveals inherent resolution limitations.
• The study quantifies how Fresnel zone observations affect reconstruction.
• Geometrical parameters of the measurement setup significantly influence achievable resolution.

Conclusions:

• Resolution limits are fundamentally constrained by the measurement configuration.
• Optimizing multistatic-multiview parameters can enhance dielectric object reconstruction.
• This work provides a framework for understanding imaging resolution in inverse scattering problems.