GPS-denied swarm navigation requires onboard relative positioning that no current chip provides

In a jammed environment where GPS is denied, each drone in a swarm must determine its position relative to other swarm members using only onboard sensors (visual, UWB ranging, IMU dead reckoning). No commercial chip integrates all three modalities with the accuracy needed for swarm formation flying (sub-meter relative positioning at 100Hz update rate). Existing UWB ranging chips (DW3000) achieve 10cm accuracy but only in clear line-of-sight, failing when drones are obscured by smoke, dust, or each other. This persists because the commercial UWB market optimizes for indoor positioning (warehouses, Apple AirTag) not outdoor multi-agent swarm navigation, and the military drone market is too small to justify a custom ASIC.