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Center Independent Research & Development: JPL IRAD

Radar Sounding and Propagation through Heterogeneous Media

Completed Technology Project

Project Introduction

This project is developing a radar sounder raw data simulator tool to predict radar echoes from large, heterogeneous dieletric subsurface domains for terrestrial and planetary radar sounders to aid instrument development and science interpretation of measured radargrams.

The radar sounder raw data simulator tool we are developing is composed of two computational modules designed to address different regimes of the sounding scattering problem: the Pseudo-Spectral Time-Domain (PSTD) for scattering from shallow subsurface dielectric heterogeneities, and the Multi-layer Fast Multipole Method (FMM) for scattering from deep, large-scale dielectric interfaces. In addition there are modules for radar wave propagation through dense heterogeneous atmospheres. The tool has been designed to be parallelized on the AmazonGov. This is enabling technology to allow broad-based system engineering for the design of planetary and terrestrial radar sounders, the development of subsurface SAR algorithms, and validating/refining observable signatures of scientific hypotheses.

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