Commercial and General Aircraft Avoidance using Acoustic Pattern Recognition

摘要

This disclosure is directed to a detection and avoidance apparatus for an unmanned aerial vehicle (“UAV”) and systems, devices, and techniques pertaining to automated object detection and avoidance during UAV flight. The system may detect objects within the UAV's airspace through acoustic, visual, infrared, multispectral, hyperspectral, or object detectable signal emitted or reflected from an object. The system may identify the source of the object detectable signal by comparing features of the received signal with known sources signals in a database. The features may include, for example, an acoustic signature emitted or reflected by the objet. Furthermore, a trajectory envelope for the object may be determined based on characteristic performance parameters for the object such as cursing speed, maneuverability, etc. The UAV may determine an optimized flight plan based on the trajectory envelopes of detected objects within the UAV's air-space.

主权项

1. A method, comprising:
generating acoustic signals, by one or more acoustic sensors of an unmanned aerial vehicle (UAV), from acoustic waves generated by propulsion of a flying object; determining one or more characteristic features of the acoustic signals; identifying the flying object based at least in part on a comparison of the one or more characteristic features to a database of known acoustic signals; associating performance parameters with the flying object using a database that includes performance parameters for at least one of a plurality of flying objects or class of flying objects; determining an approximate location and an approximate airspeed of the flying object based at least in part on the acoustic signals; determining a trajectory envelope for the flying object based at least in part on the approximate location, the approximate airspeed and the associated performance parameters; and updating a flight plan for the UAV based at least in part on the trajectory envelope of the flying object, wherein the updated flight plan does not interact with the trajectory envelope of the flying object.