Questions tagged [synthetic-aperture-radar]

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1answer
945 views

Detailed radar imaging of Tiangong-1; how do they do that?

@JamesPoulose's answer shows an advanced radar image of Tiangong-1, 270 km from the Earth's surface. The images was sourced from Space.com's How Was China's Tiangong-1 Space Station Crash Tracked So ...
3
votes
3answers
573 views

How can ICEYE-X1 capture 2D high resolution SAR images in “tens of seconds”?

The PRNewsWire release First ICEYE-X1 Radar Image from Space Published says: The full image transmitted to the ground from ICEYE-X1 exceeded 1.2GB of raw data and spans an area of roughly 80 x 40 ...
2
votes
2answers
592 views

Parallel orbits around the Earth - effectively?

edit: For the purposes of this exercise, one could consider using three or four identical spacecraft, and using the "best two out of three (or four)" for interferometry at any given moment. In 1994, ...