SYSTEMS AND METHODS FOR SELECTING ATMOSPHERIC DATA OF REFERENCE NODES FOR USE IN COMPUTING THE ALTITUDE OF A RECEIVER

摘要

Using atmospheric data from one or more reference nodes to estimate an altitude of a receiver. Assistance data associated with a set of reference nodes within a region is identified (210), and the assistance data is used to identify atmospheric reference data associated with a subset of selected reference nodes (220). An estimate of the receiver's altitude is generated using the atmospheric reference data from the subset of reference nodes (230).