A Widefield Airspace Imaging and Navigation System to provide UASs with wide field airspace imaging and collision avoidance capabilities. An array of optical lenses are distributed throughout the aircraft to provide an unobstructed view in all directions around the aircraft. Each collection lens is coupled through an optical fiber to a camera that multiplexes the several images. A processing system is connected to the wide array imaging system, and it runs an image interpolation program for resolving a background image and for distinguishing objects that are not moving with the background. In addition, a navigation control program reads the image interpolation software and, upon detection of an approaching object, implements a rule-based avoidance maneuver by sending an appropriate signal to the existing UAS autopilot.