Binary offset carrier (BOC) sideband processing
AssigneeThe Aerospace Corporation
InventorsJohn M. Gevargiz, Che-i Lien, Richard T. Sharpe
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Abstract
A global positioning system (GPS) receiver configured to perform binary offset carrier (BOC) sideband processing. The GPS receiver includes an analog RF subsystem and a digital subsystem and software module. The analog radio frequency (RF) subsystem is configured to acquire a BOC signal from a GPS satellite and converts the BOC signal to a based-banded signal. The digital subsystem and software module is configured to generate another signal and a local replica signal of the other signal to improve code tracking loop performance of the GPS receiver.
Claims31
A global positioning system (GPS) receiver configured to perform binary offset carrier (BOC) sideband processing, comprising:
- an analog radio frequency (RF) subsystem configured to acquire a BOC signal from a GPS satellite and converts the BOC signal to a based-banded signal;
- and
- a digital subsystem and software module configured to
- up converts a lower-sideband of the base-banded signal and down converts an upper-sideband of the base-banded signal, and
- combine the up converted lower-sideband of the base-banded signal and the down converted upper-sideband of the base-banded signal to generate a BOC sideband processed signal.
A global positioning system (GPS) receiver configured to perform binary offset carrier (BOC) sideband processing, comprising:
- an analog radio frequency (RF) subsystem configured to acquire a BOC signal from a GPS satellite;
- and
- a digital Application Specific Integrated Circuit (ASIC) encompassing one or more signal processing applications configured to generate local replicas encompassing local BOC signal and a local sideband processed BOC signal, and perform sideband processing on the acquired BOC signal to generate a BOC sideband processed signal for the tracking loop.
A method for performing binary offset carrier (BOC) sideband processing, comprising:
- acquiring, by an analog radio frequency (RF) subsystem, a BOC signal from a global positioning system (GPS) satellite and converting the BOC signal to a based-banded signal;
- and
- up converting, by a digital subsystem and software module, a lower-sideband of the base-banded signal and down converting an upper-sideband of the base-banded signal;
- and
- combining, by the digital subsystem and software module, the up converted lower-sideband of the base-banded signal and the down converted upper-sideband of the base-banded signal to generate a signal.
Dependencies are inferred from the claim text.