Adaptive carrier phase lock loop in a GPS receiver

Details Adaptive carrier phase lock loop in a GPS receiver Adaptive carrier phase lock loop in a GPS receiver

1995-12-22

1997-12-30

Blum, Theodore M.

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

Directive

Including a satellite

3644497, 455260, H04B 7185, G01S 502

Patent

active

057035970

ABSTRACT:
A method and apparatus for automatically adjusting the bandwidth of a GPS receiver's phase lock loop in response to acceleration changes of the tracked vehicle. The bandwidth is increased when the vehicle's acceleration rate exceeds a pre-determined value for maintaining phase lock loop and is reduced when the vehicle's acceleration rate drops below a pre-determined value for reducing the amount of noise introduced into the phase lock loop.

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