Issue 81

US: Sandia Labs Researching Teaming Satellites

Sandia National Laboratories is developing autonomous satellite clusters that can collaborate, share detections, and coordinate multi-sensor observations.

14 Sep 2023: Sandia National Laboratories announced that for the past six years, its researchers have been working on an autonomy project, led by the Air Force Research Laboratory, to enable relatively small and inexpensive satellite clusters to work together as a single, autonomous unit. The project could improve the U.S.’s ability to conduct national security missions, including intelligence, surveillance, reconnaissance (ISR), climate monitoring, and emergency response.

– Scenario: a satellite observing ships on the ocean. As it takes pictures of each ship, an algorithm decides what kind of vessel it is. But one sneaky sailor paints a pattern on the deck that confuses the satellite, so it can’t decide what it’s looking at.

-Solution: The confused satellite could communicate its problem to others in the network, which could straight away point their sensors to the same spot, combine their data and make a positive identification.

-Current research aims to connect up to about a dozen satellites, researchers say that further development could lead to connecting much larger networks.

-“The ultimate idea is to scale up to constellations that might cover virtually the entire globe – and to potentially coordinate data collection even with non-space assets,” like sensors on the ground or on planes, said Sandia’s Drew Woodbury, a senior manager in Sandia’s space programs.

-Sandia has been heavily involved in the project, developing machine learning and autonomy algorithms, radar sensors, computer models, communications protocols and flight software. Researchers have been building specialized hardware for space, where budgets for size, weight and power are commonly tighter than on the ground. They have adapted distributed software to operate on multiple satellites without conventional, land-based communications.

<Editor’s Note/Rant: Collaborating constellations is the future of space operations. China has announced intentions of moving in this direction. Please read an interview with Li Dereng, a Professor at Chinese Academy of Sciences and Engineering. The title is “From Earth Observation Satellite to Earth Observation Brain” where Li describes how China is moving to an integrated PNTRC concept (Position, Navigation, Timing, Remote sensing, Communications). The US DoD acquisition community is organized around specific weapon system capabilities (Comm, PNT, EO Imagery, SAR, SIGINT) which has a chilling effect on its ability to rapidly develop a multi-phenomenology constellation.>

Unconnected satellites work independently

When one satellite detects a possible object of interest

Others in the group could help identify it