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It's a neat concept, but we haven't really pursed this. The biggest challenge is the time synchronization part. At the speed of light, 1 ns of time offset is ~30cm of range error. The best we've been able to synchronize a network of anchors (using DecaWave alone) is a few ns for one-hop neighbors and 10s of ns for two hop neighbors (see Fig 3 of https://patpannuto.com/pubs/kempke16surepoint.pdf).
Using an external synchronization mechanism, or maybe even a novel RF synchronization protocol, could be a cool way to enable things here, but it's not immediately obvious how to realize sufficiently high fidelity RF synchronization.
Did you consider implementing a GPS like protocol for the DWM1000?
This requires:
Pros:
Cons:
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