The ionosphere can affect GPS receivers by degrading the signal strength, in some cases causing loss of carrier lock, and by degrading the accuracy of...
NAVSYS Corporation has developed a 109-element GPS antenna array and a modified version of the High-gain Advanced GPS Receiver (HAGR) which can perform beam...
The development of time transfer techniques using Global Positioning System (GPS) carrier-phase observations promises the capability to deliver sub-nanosecond...
NAVSYS Corporation has designed a hybrid integrity monitoring solution for precision approach and landing in a GPS environment degraded by RF interference. The...
NAVSYS has designed a GPS/inertial/video sensor (GI-Eye) that provides precision georegistration data of collected imagery directly at the sensor. This has...
The large size of conventional GPS L1/L2 controlled reception pattern antennas (CRPA) has prevented them from being installed on vehicles where available space...
In this paper, the Global Positioning System (GPS) carrier-phase time transfer technique is described and a discussion is included on the error components that...
NAVSYS has developed a GPS receiver, the HAGR (High-gain Advanced GPS Receiver), which uses digital beam steering to increase the precision of the GPS...
space and naval warfare systems command san diego ca, 2000
In this paper the architecture of a software GPS receiver is described and an analysis is included of the performance of a software GPS receiver when tracking...
This paper describes the architecture of a digital storage receiver and discusses its benefits and applications. The digital storage receiver includes the...
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