Method and apparatus for observing unknown codes on satellite po

Details Method and apparatus for observing unknown codes on satellite po Method and apparatus for observing unknown codes on satellite po

1995-10-30

1998-01-13

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

342352, G01S 502

Patent

active

057084394

ABSTRACT:
The method and apparatus for observing unknown codes on the Satellite Positioning System satellites are disclosed. The technique employs the parabolic high gain antenna to determine the energy spectrum of the unknown W code. The technique does not provide sufficient accuracy to implement the effective anti-spoofing device.

REFERENCES:
patent: 4112372 (1978-09-01), Holmes et al.
patent: 4463357 (1984-07-01), MacDoran
patent: 4667203 (1987-05-01), Counselman, III
patent: 4972431 (1990-11-01), Keegan
patent: 5293170 (1994-03-01), Lorenz et al.
patent: 5541606 (1996-07-01), Lennen

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