國立虎尾科技大學 |

Assisted GNSS Using the Doppler Frequency Track Measurement.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Assisted GNSS Using the Doppler Frequency Track Measurement./
作者:	Pike, G. Elisabeth.
面頁冊數:	1 online resource (130 pages)
附註:	Source: Dissertations Abstracts International, Volume: 85-02, Section: B.
Contained By:	Dissertations Abstracts International85-02B.
標題:	Aerospace engineering. -
電子資源:	click for full text (PQDT)
ISBN:	9798380075251

Assisted GNSS Using the Doppler Frequency Track Measurement.
Pike, G. Elisabeth.

Assisted GNSS Using the Doppler Frequency Track Measurement. - 1 online resource (130 pages)

Source: Dissertations Abstracts International, Volume: 85-02, Section: B.

Thesis (Ph.D.)--Ohio University, 2023.

Includes bibliographical references

Satellite positioning using the Doppler frequency shift, though used in the decommissioned satellite positioning system, TRANSIT, has been superseded by a more robust positioning algorithm: the modern GNSS (Global Navigation Satellite System) pseudorange positioning method. The recent increase in varied satellite constellations, both MEO (medium earth orbit, e.g., GPS) and LEO (low earth orbit, e.g., Starlink), and multiconstellation navigation has renewed interest in codeless positioning options. This dissertation shows the derivation of novel Doppler track equations for high-accuracy solutions using GNSS satellites. Several specific, data-supported examples illustrating the feasibility and reliability of these novel Doppler track equations are presented, including a combined Doppler-pseudorange solution for low-visibility (2-3 satellites) static situations without the use of reference stations, a combined Doppler-pseudorange accuracy performance and protection level solution for improved performance in the Arctic region, and a complementary filter using Doppler position and precise displacement measurements for precise, codeless LEO satellite positioning. In each specific example, complete error sensitivity analyses are shown, and computer simulations are used to demonstrate the feasibility of the application. Where applicable, fault detection and exclusion algorithms are also described for short (1-10 s) Doppler tracks, and collected data from either surveyed static receivers or dynamic flight receivers were used for real world testing. These examples serve to show that Doppler track positioning is a viable navigation option comparable to pseudorange positioning, and can improve on the pseudorange solution in situations of low-visibility, high-velocity, and multi-constellation positioning.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380075251Subjects--Topical Terms:

686400
Aerospace engineering.
Subjects--Index Terms:

Assisted GNSSIndex Terms--Genre/Form:

554714
Electronic books.

Assisted GNSS Using the Doppler Frequency Track Measurement.
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520 $a Satellite positioning using the Doppler frequency shift, though used in the decommissioned satellite positioning system, TRANSIT, has been superseded by a more robust positioning algorithm: the modern GNSS (Global Navigation Satellite System) pseudorange positioning method. The recent increase in varied satellite constellations, both MEO (medium earth orbit, e.g., GPS) and LEO (low earth orbit, e.g., Starlink), and multiconstellation navigation has renewed interest in codeless positioning options. This dissertation shows the derivation of novel Doppler track equations for high-accuracy solutions using GNSS satellites. Several specific, data-supported examples illustrating the feasibility and reliability of these novel Doppler track equations are presented, including a combined Doppler-pseudorange solution for low-visibility (2-3 satellites) static situations without the use of reference stations, a combined Doppler-pseudorange accuracy performance and protection level solution for improved performance in the Arctic region, and a complementary filter using Doppler position and precise displacement measurements for precise, codeless LEO satellite positioning. In each specific example, complete error sensitivity analyses are shown, and computer simulations are used to demonstrate the feasibility of the application. Where applicable, fault detection and exclusion algorithms are also described for short (1-10 s) Doppler tracks, and collected data from either surveyed static receivers or dynamic flight receivers were used for real world testing. These examples serve to show that Doppler track positioning is a viable navigation option comparable to pseudorange positioning, and can improve on the pseudorange solution in situations of low-visibility, high-velocity, and multi-constellation positioning.
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653 $a Satellite navigation
653 $a Doppler satellite positioning
653 $a Doppler positioning
653 $a Two satellite positioning
653 $a Arctic positioning
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