Autonomous quad copter using Pixhawk Flight Controller

Hi,

I am currently designing a fully autonomous quad copter that will pick up cell phone signal using USRP/GNU radio and find the location of the signal. I need to use at least four obstacle avoidance sensors, but I am not quite sure if the Pixhawk Flight Controller comes with such functionality.

Thanks

@heartjc,
Try this thread: http://ardupilot.com/forum/viewtopic.php?f=36&t=8124
Regards,
TCIII GM