Global positioning system course acquisition code receiver

Details Global positioning system course acquisition code receiver Global positioning system course acquisition code receiver

1988-04-07

1989-07-11

Cangialosi, Salvatore

Pulse or digital communications

Repeaters

Testing

375120, 370104, 370107, H04K 100

Patent

active

048478628

ABSTRACT:
Two receiver channels each driven by a common local oscillator signal are employed. The signal developed by the first receiver channel is used to drive in phase (I) and quadrature (Q) counters of a Castas-loop, which phase-locks to the signal. The signal developed by the second receiver channel is used to drive another pair of in phase (I) and quadrature (Q) counters, which develop signals from which heading information is calculated.

REFERENCES:
patent: 4247939 (1981-01-01), Stronswold
patent: 4485477 (1984-11-01), Nossen
patent: 4530103 (1985-07-01), Mosley, Jr. et al.
patent: 4754465 (1988-07-01), Trimble

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