When operating autonomous systems across multiple operational domains (air, surface, or undersea), the ability to develop and test existing and novel algorithms requires the support of unique tactics and communication methods. This work presents an update of technical advancements in support of unmanned, distributed, multidomain intelligence, surveillance, and reconnaissance (ISR) mission sets for increased communication and battle space awareness. Specifically, we present an ecosystem of technologies designed to execute a specific multidomain operations (MDO) concept, elements of which are prototyped in simulation while exploring development in hardware. The former (simulation) leverages an open source simulation tool, SCRIMMAGE, to prototype the range of capabilities envisioned while the latter (hardware) investigates the multifaceted aspects of what is tangibly required to implement those capabilities in a realistic environment. The hardware team incorporates multiple open source software tools and low-cost surrogates developed in-house to accomplish its goals through rapid experimentation at local testing sites.
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