Recent developments in small SAR satellites led by commercial industry offer new opportunities to experiment with novel SAR-related concepts. The goal of the DRIFT program is to demonstrate advanced capabilities enabled by a cluster of SAR satellites flown in formation.
The DRIFT program seeks to demonstrate novel processing algorithms on data from a cluster of at least two SAR satellites flown in formation. The program consists of two Technical Areas (TAs), but only abstracts and proposals for TA 2 are sought in response to this BAA.
More: https://www.defensenews.com/battlefield-tech/space/2022/04/22/darpa-seeks-proposals-on-improving-satellite-imagery-technology/
https://sam.gov/opp/e6c79d7c5bb4495d8a7daac890406495/view