Optimal Geometric Depolyment of a Ground Based Pseudolite Navigation System to Track a Landing Aircraft

Name: Optimal Geometric Depolyment of a Ground Based Pseudolite Navigation System to Track a Landing Aircraft
Brand: Biblioscholar
SKU: 9781249578741
Price: 7008 HUF
Availability: InStock

Szerző: Matthew P Crawford

Nyelv:

Kötés: Puha kötésű

Kiadó: Biblioscholar

Elérhetőség: Beszállítói készleten

Küldés 14-21 napon belül

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With much of the military and civilian communities becoming dependent on GPS technology to navigate,...

Információk a könyvről

Szerző

Matthew P Crawford

Nyelv

Angol

Kötés

Könyv - Puha kötésű

Kiadva

2012

oldal

130

EAN

9781249578741

ISBN

9781249578741

Enbook ID

08141365

Kiadó

Biblioscholar

Súly

245

Méretek

189 x 246 x 7

Teljes leírás

With much of the military and civilian communities becoming dependent on GPS technology to navigate, it has become imperative that the navigation systems be tested in situations in which GPS does not work. This testing is especially necessary for precise tasks such as landing an aircraft. Currently, research is being conducted into using a pseudolite-based reference system to use as a truth model for the GPS jamming test. Pseudolite systems have been proven to provide sub-centimeter level accuracy in the horizontal plane; however in the vertical plane the position error is still in the decimeter to meter level range. This is largely due to the fact that the geometry of a ground based pseudolite system provides poor slant angles in the vertical plane, which contributes to large positioning errors. The goal of this research is to study the effects of system geometry on the vertical plane solution. The results of this effort show that elevation angles of greater than 20o-30o are necessary to attain reasonably good positioning solutions. Multiple pseudolite deployments, while effective at reducing the geometry errors, are very cost ineffective and the geometries pose significant risks to a landing aircraft. The best geometry involved using an orbiting aircraft, with a pseudolite transmitter and receiver attached, as an elevated pseudolite to create better slant angles and thus better positioning solutions.

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Optimal Geometric Depolyment of a Ground Based Pseudolite Navigation System to Track a Landing Aircraft

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