Method and system for multipath detection

Details Method and system for multipath detection Method and system for multipath detection

2006-10-03

2006-10-03

Tarcza, Thomas H. (Department: 3662)

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

Directive

Including a satellite

C342S357490, C342S357490, C342S368000, C342S372000

Reexamination Certificate

active

07116270

ABSTRACT:
A navigation system including a GPS receiver; a variable directivity antenna capable of forming a null point in at least one direction; a null point setting unit for setting the null point of the variable directivity antenna in the direction of a GPS satellite that can perform positioning; and a multipath determination unit for determining whether a reception signal from the variable directivity antenna is in a multipath state in accordance with the reception signal.

REFERENCES:
patent: 4959653 (1990-09-01), Ganz et al.
patent: 5940026 (1999-08-01), Popeck
patent: 6084540 (2000-07-01), Yu et al.
patent: 6166690 (2000-12-01), Lin et al.
patent: 6618016 (2003-09-01), Hannan et al.
patent: 6727846 (2004-04-01), Brown
patent: 2005/0280577 (2005-12-01), Feller
patent: 2006/0033659 (2006-02-01), Strickland
Eureopean Search Report dated Apr. 8, 2005.

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