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Re:A Brief Introduction to Ice-Penetrating Radar by b_emery on Thursday July 30, 2015 @05:55PM (#9978474)
I'm not familiar with SAR, but it seems like they could use more than just 2 antennas to produce a more directional receive array. I work with HF radars (2-30 MHz) and this is basically what we do. There is a lot of clever engineering out there - that one doesn't need to be too clever to apply.
Re:A Brief Introduction to Ice-Penetrating Radar by lindzey on Thursday July 30, 2015 @06:08PM (#9978557)
Yes - this idea has definitely taken over my imagination. A different research group (https://www.cresis.ku.edu/) has been working on this, but the processing techniques are still evolving.

Do you have papers describing y'all's processing? I'd love to learn more!

Re:A Brief Introduction to Ice-Penetrating Radar by b_emery on Friday July 31, 2015 @04:46PM (#9984366)
I do have papers. I recently wrote a paper where we used backscatter from container ships to calibrate our radars. I'll try to email it to you, but here it is:

http://euler.msi.ucsb.edu/papers/2014_emery_apm_from_soo.pdf

It has some of the basic processing techniques.

Re:A Brief Introduction to Ice-Penetrating Radar by hn9780470248775 on Thursday July 30, 2015 @08:38PM (#9979238)
I think "phased array radar" is the relevant search term.