Abstract: One or more processors obtain a first radio environment signature associated with an aerial vehicle (AV) and a second radio environment signature associated with a computing device. Responsive to determining that the first radio environment signature and the second radio environment signature satisfy a similarity criteria, the one or more processors generate a validation data object verifying one or more of (i) that a location of the AV substantially corresponds to a location of the computing device at a time associated with at least one of the first radio environment signature or the second radio environment signature, (ii) a AV delivery associated with the AV and the computing device, or (iii) a AV pickup associated with the AV and the computing device. The one or more processors store or provide validation information based on the validation data object.

Abstract: A computing device obtains an instance of radio observation data and an associated circumstance parameter. The instance of radio observation data indicates an observed signal strength a radio node observed by a mobile device. The circumstance parameter indicates a characteristic of motion of the mobile device and/or a characteristic of the environment about the mobile device when the instance of radio observation data was captured. The computing device determines a context associated with the instance of radio observation data based at least in part on the circumstance parameter; determining a context-specific signal strength correction based at least in part on the context; generates a corrected signal strength of the radio node based on the observed signal strength and the signal strength correction; and generates and/or updates a radio map based at least in part on the corrected signal strength of the at least one radio node.

Abstract: One or more processors obtain a first radio environment signature associated with an aerial vehicle (AV) and a second radio environment signature associated with a computing device. Responsive to determining that the first radio environment signature and the second radio environment signature satisfy a similarity criteria, the one or more processors generate a validation data object verifying one or more of (i) that a location of the AV substantially corresponds to a location of the computing device at a time associated with at least one of the first radio environment signature or the second radio environment signature, (ii) a AV delivery associated with the AV and the computing device, or (iii) a AV pickup associated with the AV and the computing device. The one or more processors store or provide validation information based on the validation data object.

Abstract: A processor obtains image data corresponding to an image captured by an aerial vehicle (AV). The obtained image data comprises a first representation representing at least a portion of surroundings of the AV. The processor accesses existing image data from an image database. The existing image data comprises a second representation. The image database is configured to enable visual positioning. The processor determines, based at least on a comparison of the first representation and the second representation, whether the second representation provides a representation of an environment that at least partially overlaps the at least a portion of the surroundings of the AV; identifies a difference or similarity in the overlap; and generates an update to the image database based on the difference or similarity.