Unmanned aerial vehicle motor driving randomization for noise abatement

摘要: This disclosure is directed to varying a speed of one or more motors in an unmanned aerial vehicle (UAV) reduce unwanted sound (i.e., noise) the UAV. A UAV may include coupled with propellers provide lift and propulsion various stages flight, such as while ascending, descending, hovering, transiting. The generate noise, which number noise components tonal (e.g., whining whistle kettle at full boil) broadband complex mixture sounds different frequencies, ocean surf). By controls motors, by revolutions per minute (RPM) motor during operation providing random pseudo-random RPM variations, signature reduced noise.