Positioning signal reception device and control method of...

Details Positioning signal reception device and control method of... Positioning signal reception device and control method of...

2005-12-07

2009-11-17

Ghayour, Mohammad H (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S149000

Reexamination Certificate

active

07620132

ABSTRACT:
A positioning signal reception device receives a positioning signal transmitted from a position information satellite, and includes: a signal reception portion that obtains a reception signal by receiving the positioning signal; an A/D conversion portion that generates a digital signal by converting the reception signal into a digital form; a filter portion that subjects the digital signal to frequency separation, a characteristic of the filter portion being changeable; a filter characteristic change portion that changes the characteristic of the filter portion according to an operating state of the positioning signal reception device and an external environmental condition of the positioning signal reception device; and a code synchronization establishment portion that establishes synchronization of spreading codes contained in the reception signal.

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