Preprint
Article
An Echo Intensity Calculation Method Based on DNN for SAR Ray-Tracing Simulation
This version is not peer-reviewed.
Submitted:
09 October 2020
Posted:
09 October 2020
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Abstract
The calculation of echo intensity involved in the SAR image simulation is usually based on the electromagnetic formula or approximate formula derived under certain assumptions. However, the parameters used in these formulas are often difficult to obtain, and the formulas have errors with the actual situation. In this paper, a method of embedding deep neural network (DNN) into the simulation process based on ray tracing is proposed, so that the DNN model can be directly used to fit the calculation formula of echo intensity from real SAR images. Simulation results show that this method can obtain SAR images with high similarity.
Keywords:
deep neural network
; differentiable rendering
; electromagnetic scattering modeling
; ray tracing
; SAR image simulation
Copyright: This open access article is published under a Creative Commons CC BY 4.0 license, which permit the free download, distribution, and reuse, provided that the author and preprint are cited in any reuse.
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