"The testing took place over a two week period and included four unmanned aircraft and two manned aircraft demonstrating Air Traffic Management (ATM) technologies for pilot situational awareness in a total of 38 flown missions," the release explained.
The test took place at an airfield in the US state of Texas, and the demonstration for the US Department of Homeland Security, which funded the project, was described as successful.
"This technology assessment further validates that there are effective solutions for entities, like the Department of Homeland Security, to safely operate manned and unmanned aircraft in a shared airspace today," PrecisionHawk Vice President Tyler Collins stated in the release.
US authorities have reported a dramatic increase in drones flying near airports in the United States, a growing safety concern since a collision with an unmanned aircraft weighing 50 pounds or less could easily take down a much larger commercial jet, experts say.
The US Federal Aviation Administration reported more than 1,200 drone sightings by airline pilots in 2015, an increase of more than five-fold from 236 sightings the previous year.