Spread spectrum receiver kalman filter residual estimator...

Details Spread spectrum receiver kalman filter residual estimator... Spread spectrum receiver kalman filter residual estimator...

2005-07-05

2005-07-05

Corrielus, Jean B. (Department: 2637)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S142000, C375S367000, C342S108000, C342S189000, C342S357490

Reexamination Certificate

active

06914931

ABSTRACT:
A GPS receiver receives GPS spread spectrum communication signals subject to carrier demodulation and code phase autocorrelation using tightly coupled Kalman filter residual estimation based on Ricatti matrix computation for generating code phase errors and carrier phase errors for improved code phase tracking and carrier phase tracking in feedback loops for use in navigation systems.

REFERENCES:
patent: 2003/0085839 (2003-05-01), Zhodzishky et al.

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