Patent ID: 7542848
Filing Date: 2009-06-02
Classification: G01S

Abstract:
1. A software-defined global positioning system (GPS) receiver, comprising: a down converter circuit configured to receive GPS satellite signals and to down convert a frequency of received GPS satellite signals, wherein down-converted GPS satellite signals are generated when the down converter receives the GPS satellite signals; an analog-to-digital converter circuit connected to the down converter circuit, wherein the analog-to-digital converter circuit is configured to sample and digitize the down-converted GPS satellite signals, wherein digitized down-converted GPS satellite signals are generated when the analog-to-digital converter circuit samples and digitizes the down-converted GPS satellite signals; a processor connected to the analog-to-digital converter circuit; and a memory connected to the processor, wherein the memory stores an operating environment architecture and an application program that, when executed by the processor, processes the digitized down-converted GPS satellite signals to compute navigation, wherein the operating environment architecture is based on object-oriented methodology, and wherein the operating environment architecture is compliant with a standard open architecture framework.