Decoding GPS satellite data at low signal to noise levels by...

Pulse or digital communications – Receivers – Particular pulse demodulator or detector

Reexamination Certificate

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Details

C375S324000, C375S326000, C375S327000, C375S376000, C375S341000

Reexamination Certificate

active

07664207

ABSTRACT:
A method of decoding a GPS carrier signal comprising: (A) receiving a phase modulated GPS signal by using a GPS antenna; (B) extracting a GPS data from the received phase modulated GPS signal; and (C) computing a total probability of a current GPS data bit being “one” or “zero” at a GPS time epoch by using a decoding algorithm.

REFERENCES:
patent: 6163873 (2000-12-01), Murano
patent: 6546040 (2003-04-01), Eschenbach
patent: 6944206 (2005-09-01), Dent
patent: 7260160 (2007-08-01), Lennen

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