Two-channel fast-sequencing high-dynamics GPS navigation receive

Details Two-channel fast-sequencing high-dynamics GPS navigation receive Two-channel fast-sequencing high-dynamics GPS navigation receive

1997-12-15

1999-09-07

Tarcza, Thomas H.

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

Directive

Including a satellite

H04B 7185

Patent

active

059493747

ABSTRACT:
A GPS navigation receiver channel tracks satellites' Doppler frequencies sequentially during the twenty milliseconds that the signal is coherent in each bit time of the navigation data modulation. It measures frequency by differencing the angles of signal-vector sums weighted by parabolic humps, exploiting the commutativity of linear processing operations to raise the signal-to-noise ratio before the nonlinear operation phase of detection.

REFERENCES:
patent: 4818999 (1989-04-01), Kobayashi
patent: 5471648 (1995-11-01), Gourgue

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