Method for extended coherent data demodulation for GPS...

Pulse or digital communications – Receivers

Reexamination Certificate

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Details

C375S340000, C701S213000, C701S214000, C701S215000, C329S304000

Reexamination Certificate

active

10429083

ABSTRACT:
A method of performing data detection for a global positioning system (GPS) receiver is disclosed. The method includes receiving a first in-phase (I) reference signal during a first time interval and receiving a first quadrature (Q) reference signal during a first time interval. The method also includes receiving a second in-phase (I) reference signal during a second time interval and receiving a second quadrature (Q) reference signal during a second time interval. The method further includes computing a first sum of the first I reference signal and the second I reference signal, computing a second sum of the first Q reference signal and the second Q reference signal, computing the difference of the first I reference signal and the second I reference signal; and computing the difference of the first Q reference signal and the second Q reference signal.

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