An Extended Propagation Ephemeris for GNSS

Garrison, James L.; Eichel, Brenda E.

doi:10.1002/j.2161-4296.2006.tb00381.x

Cited by 4 publications

References 10 publications

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Implementation and Testing of an Unaided Method for the Acquisition of Weak GPS C/A Code Signals

Heckler

Garrison

2009

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Fast Modified Double Block Zero Padding (FM‐DBZP) is presented as a method for unaided acquisition of weak GPS C/A signals. FM‐DBZP uses frequency‐domain techniques for coherent integration over integer multiples of the data bit period to perform a search in code delay, Doppler frequency, bit combination, and bit edge. The FFT operation count grows linearly with coherent integration time. The Zoom FFT (ZFFT) further reduces the multiplication count by 28% and the addition count by 37%. The coherent integration time is set to minimize the total computational cost, given a specified acquisition threshold. Successful acquisition, at a design C/N0 of 15 dB‐Hz, is demonstrated using a GPS signal simulator. The signal is further attenuated until the algorithm failed to acquire a satellite with a success rate better than 50%. This occurs at a C/N0 of 12.5 dB‐Hz.

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Implementation and Testing of an Unaided Method for the Acquisition of Weak GPS C/A Code Signals

Heckler

Garrison

2009

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Wavelet Neural Network employment for continuous GNSS orbit function construction: Application for the Assisted-GNSS principle

Prešeren

Stopar

2013

Applied Soft Computing

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Baseline advanced RAIM user algorithm and possible improvements

Blanch

Walker

Enge

et al. 2015

IEEE Trans. Aerosp. Electron. Syst.

202

223

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We present a baseline multiple fault and multiconstellation advanced receiver autonomous integrity monitoring user algorithm for vertical guidance. After reviewing the navigation requirements for localizer performance with vertical guidance down to 200 feet, we describe in detail how to process the pseudorange measurements, the nominal error models, and the prior fault probabilities to obtain the Manuscript

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An Extended Propagation Ephemeris for GNSS

Abstract: A Global Navigation Satellite Systems (GNSS) ephemeris is defined

Cited by 4 publications

References 10 publications

Implementation and Testing of an Unaided Method for the Acquisition of Weak GPS C/A Code Signals

Implementation and Testing of an Unaided Method for the Acquisition of Weak GPS C/A Code Signals

Wavelet Neural Network employment for continuous GNSS orbit function construction: Application for the Assisted-GNSS principle

Baseline advanced RAIM user algorithm and possible improvements

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