NRZ and biphase-L formatted hexaphase modulated GPS transmission

Details NRZ and biphase-L formatted hexaphase modulated GPS transmission NRZ and biphase-L formatted hexaphase modulated GPS transmission

1998-01-28

2000-06-13

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375202, 375206, 375208, 342352, H04B 1500

Patent

active

060758104

ABSTRACT:
An NRZ and biphase-L formatted, three code hexaphase modulated GPS signal transmission communication method provides for the simultaneous modulation of the C/A code, the P(Y) code and a NEW code all modulating a single carrier for GPS use in one or both L1 and L2 bands. The use of the C/A code and the P(Y) code which are NRZ formatted with a NEW code biphase-L formatted and using hexaphase modulation on the three signals provides for spectral separation between the C/A code signal and the NEW code signal, all three modulated on a single carrier frequency.

REFERENCES:
patent: 5381446 (1995-01-01), McIntosh
patent: 5400359 (1995-03-01), Hikoso et al.
patent: 5469470 (1995-11-01), Tankahashi
patent: 5923287 (1999-07-01), Lennen

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