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Related Experiment Video

Updated: Oct 29, 2025

Scattering And Absorption of Light in Planetary Regoliths

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

Fast Computation of Born-Approximated Multistatic Scattering.

Eden Elbaz, Yaniv Brick

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

|July 9, 2021

Summary

This study introduces a fast algorithm for computing scattering patterns from low-contrast objects using the Born approximation. It significantly reduces computational complexity for various angles and frequencies.

Area of Science:

Computational electromagnetics
Wave scattering theory
Numerical methods

Background:

Multistatic scattering pattern computation is crucial for applications like radar and sonar.
Existing methods often face high computational complexity, especially for volumetric objects.
The Born approximation simplifies scattering problems for low-contrast targets.

Purpose of the Study:

To develop a computationally efficient algorithm for multistatic scattering patterns.
To leverage the Born approximation for simultaneous angle and frequency computations.
To demonstrate error controllability and favorable computation times.

Main Methods:

An algorithm based on hierarchical interpolation and aggregation of partial contributions.

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Optimally sampled, phase-compensated integration of scattered field components.

Simultaneous computation across ranges of incident/observation angles and frequencies.

Main Results:

Significant reduction in asymptotic computational complexity by several polynomial orders.
Demonstrated error controllability of the proposed algorithm.
Favorable computation times achieved for representative examples.

Conclusions:

The presented algorithm offers a computationally efficient solution for multistatic scattering.
It effectively utilizes the Born approximation for broad applicability.
The method shows promise for accelerating simulations in electromagnetics and acoustics.