Development and Simulation of a Pseudolite-Based Flight Reference System

Name: Development and Simulation of a Pseudolite-Based Flight Reference System
Brand: Biblioscholar
SKU: 9781249600329
Price: 410 CZK
Availability: InStock

Autor: Terry J Bouska

Jazyk:

Vazba: Brožovaná

Vydavatel: Biblioscholar

Dostupnost: Skladem u dodavatele

Odesíláme za 9-15 dnů

410 Kč

Current flight reference systems are vulnerable to GPS jamming and also lack the accuracy required t...

Informace o knize

Autor

Terry J Bouska

Jazyk

Angličtina

Vazba

Kniha - Brožovaná

Vydáno

2012

Stránek

144

EAN

9781249600329

ISBN

9781249600329

Enbook ID

08142810

Vydavatel

Biblioscholar

Hmotnost

268

Rozměry

189 x 246 x 8

Kompletní popis

Current flight reference systems are vulnerable to GPS jamming and also lack the accuracy required to test new systems. Pseudolites can augment flight reference systems by improving accuracy, especially in the presence of GPS jamming. This thesis evaluates a pseudolite-based flight reference system which applies and adapts carrier-phase differential GPS techniques. The algorithm developed in this thesis utilizes an extended Kalman filter along with carrier-phase ambiguity resolution techniques.A simulation of the pseudolite-based positioning system realistically models measurement noise, multipath, pseudolite position errors, and tropospheric delay. A comparative evaluation of the algorithms performance for single and widelane frequency measurements is conducted in addition to a sensitivity analysis for each measurement error source, in order to determine design tradeoffs. Other analyses included the use of optimal smoothing, non-linear filtering techniques, and code averaging. Specific emphasis is given to two alternate methods, both developed in this research, for handling the residual tropospheric error after applying a standard tropospheric model.Results indicate that the algorithm is capable of accurately resolving the pseudolite carrier-phase ambiguities, and providing a highly accurate (centimeter-level) navigation solution. The filter enhancements, particularly the optimal smoother and tropospheric error reduction methods, improved filter performance significantly.

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Development and Simulation of a Pseudolite-Based Flight Reference System

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