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Multiple autonomous Unmanned Aerial Vehicles (UAVs) can be used to complement human teams. This paper presents the results of an exploratory study to investigate gesture/speech interfaces for interaction with robots in a situated manner and the development of three iterations of a prototype command set. A command set was compiled from observing users interacting with a simulated interface in a virtual reality environment. We discovered that users find this type of interface intuitive and their commands tend to naturally group into both `High-Level' and `Low-Level' instructions. However, as the robots moved further away, the loss of depth perception and direct feedback was inimical to the interaction. In a second experiment we found that using simple heads up display elements could mitigate these issues.
Sethu-Jones et al. (Sat,) studied this question.