  Wildland fire fighting is a very dangerous job, and the lack of information
of the fire front is one of main reasons that causes many accidents. Using
unmanned aerial vehicle (UAV) to cover wildfire is promising because it can
replace human in hazardous fire tracking and save operation costs
significantly. In this paper we propose a distributed control framework
designed for a team of UAVs that can closely monitor a wildfire in open space,
and precisely track its development. The UAV team, designed for flexible
deployment, can effectively avoid in-flight collision as well as cooperate well
with other neighbors. Experimental results are conducted to demonstrate the
capabilites of the UAV team in covering a spreading wildfire.
