US Patent 9849978 Detecting of navigation data spoofing based on sensor data

Techniques for determining whether data associated with an autonomous operation of an unmanned vehicle may be trusted. For example, a first set of data may be provided from a source external to the unmanned vehicle. A second set of data may be accessed. This second set may be provided from a source internal to the unmanned vehicle and may be associated with the same autonomous operation. The two sets may be compared to determine whether the first set of data may be trusted or not. If untrusted, the autonomous navigation may be directed based on the second set of data and independently of the first set.