Engineering Notes
Detailed technical monographs from our evidence register. We publish method lines, sample sizes, and empirical validation metrics so our engineering decisions can be inspected and reproduced.
Why the Stack Drops GNSS Entirely: IR Tracking & UWB Ranging in Jammed Environments
Modern electronic warfare in Ukraine makes satellite positioning a liability rather than an asset. By decoupling line-of-sight angular bearing (optical IR) from radial distance (UWB time-of-flight), the Luftschar swarm module maintains meter-level formation hold with zero GPS/GLONASS reliance.
How We Measure: The UWB Hardware Bench Reference Session
A number without its seed count or sample size is merely an impression. We document the methodology, hardware setup, and packet logs of our reference 5 Hz bench session: 204/205 valid ranging frames, zero sentinel dropouts, and a measured standard deviation of 3.3 cm.
Honest Limits: Bearing Margins and Mirror Flip Dynamics
Publishing engineering boundaries unprompted is what gives credibility to every other claim. An in-depth analysis of the dual-tag reflection isometry: why bearing margin is 55°–60° (not 45°), how adding one peer link collapses departures from 40/40 to 0/40, and why breaking global symmetry requires an external bearing.
Solver Performance & Exact Ising Spin Formulation
How we achieved a 0.81 ms solve latency on an embedded ARM Cortex-A76 companion computer—137x faster than naive search loops—while proving an exact mathematical mapping of follower mirror state to an Ising Hamiltonian without unphysical relaxations.