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Abstract
Radiolocation systems for aviation based on Multi-Lateration (MLAT) typically use a set of synchronised ground sensors to receive radio signals broadcast by onboard transmitters. In most cases, the sensor synchronisation in Wide Area Multi-Lateration Systems (WAM) is provided by Global Navigation Satellite System (GNSS) receivers. However, in the case of synchronisation failure, there is still a possibility to estimate the coordinates of the tracked aircraft by using the measurements of the time of arrival taken by non-synchronised sensors. The article presents the principle of operation and equations for calculating the coordinates of an aircraft in an asynchronous multi-lateration system, together with the results of a computer simulation allowing comparison of the accuracy of position estimation between the asynchronous and the typical, synchronous MLAT. This paper contains also some comments on the required stability of the clock source for the sensors working in an asynchronous MLAT system.
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- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1017/S0373463318000607
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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JOURNAL OF NAVIGATION
no. 72,
edition 1,
pages 85 - 100,
ISSN: 0373-4633 - Language:
- English
- Publication year:
- 2019
- Bibliographic description:
- Sadowski J., Stefański J.: Asynchronous WAM with Irregular Pulse Repetition// JOURNAL OF NAVIGATION. -Vol. 72, iss. 1 (2019), s.85-100
- DOI:
- Digital Object Identifier (open in new tab) 10.1017/s0373463318000607
- Verified by:
- Gdańsk University of Technology
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