Kalman filter ionospheric delay estimator

Details Kalman filter ionospheric delay estimator Kalman filter ionospheric delay estimator

1996-12-19

1999-02-02

Sheikh, Ayaz R.

Boots, shoes, and leggings

375232, 375346, G06F 1710, H03H 730, H03D 328

Patent

active

058674110

ABSTRACT:
An estimator structure include a nonlinear modified Kalman filter for initial estimate and plurality of bias estimators and a parallel bank of Kalman filters for ambiguity resolution and providing final estimates. The estimator structure is useful for real-time computation of ionospheric propagation delay introduced in the navigation signals by dual frequency GPS receivers.

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patent: 5432816 (1995-07-01), Gozzo
patent: 5563917 (1996-10-01), Sheynblat
"Optimal Filtering of Pseudoranges and Phases From Single-Frequency GPS Receivers", C.C. Goad, Navigation, vol. 37, No. 3, pp. 191-204, Fall 1990.
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Rapid Static Positioning Based on the Fast Ambiguity Resolution Approach: The Alternative to Kinematic Positioning:, E. Frei & G. Beutler, Proceedings of 2nd Internat'l Symp. on Precise Positioning w/ GPS, Ottawa, Canada, pp. 1196-1216, Sep. 1990.

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