Abstract: A computer-implemented fraud detection system and method are disclosed. A method includes monitoring past customer account transactions conducted with a selected one or more transaction devices, and generating a predictive model that combines customer account transaction profiles with transaction device profiles related to the one or more transaction devices, and storing a representation of the predictive model in a storage. A system for detecting fraud in financial transaction includes a fraud detection computer that receives, through a communications network, customer account transaction data obtained by a monitoring device of a transaction device according to one or more transaction device variables of a transaction device profile.

Abstract: A navigation receiver system provides real-time precise relative positioning in cooperation with an associated carrier phase receiver. The navigation receiver system and the associated carrier phase receiver both sample signals during a single epoch, and the associated carrier phase receiver processes the received signals to provide and transmit first carrier phase measurement data. The navigation receiver system comprises a data link receiver that receives the first carrier phase measurement data from the associated carrier phase receiver, and a carrier phase receiver that receives carrier phase signals during the sampling epoch, and processes the carrier phase signals to provide a second carrier phase measurement data. The navigation system receiver also includes a processing unit that receives the first carrier phase measurement data and the second carrier phase measurement data and computes carrier phase difference measurements.