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Potential accuracy of object localization with multilateration systems

Published online by Cambridge University Press:  18 May 2009

Victor Chernyak
Victor Chernyak*
Affiliation:
Moscow Aviation Institute (State Technical University), 31-1-12, Volgina ul., Moscow 117437, Russia. Phone: +(00)7 495 336 2268.
*
Corresponding author: V. Chernyak Email: [email protected]
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Abstract

Multilateration (MLAT) systems and wide area MLAT (WAM) systems are particular cases of multisite (multistatic) radar systems (MSRSs): passive MSRSs (PMSRSs) with known expected signal waveforms. One of the most stringent requirements on an MLAT system is a very high accuracy of target (emitter) localization. In view of this, the potential accuracy of emitter localization (PAEL) based on Cramer–Rao inequality is important. Its dependence on system geometry and time of arrival (TOA) measurement accuracy allows choosing reasonable system geometry and requirements on TOA measurements. PAEL for MLAT and WAM systems with different geometry is considered, including systems proposed for the Marco Polo airport in Venice, Italy. The possibility of velocity determination using PAEL for landing and taking off aircrafts is also discussed. The concept of PAEL permits one to analyze joint measurements of different signal parameters and target coordinates. The effect of additional elevation angle measurements on PAEL in the WAM system for the Marco Polo airport is shown.

Keywords

Multilateration systemsWAM systemspotential accuracyCRLB
Type
Original Article
Information
International Journal of Microwave and Wireless Technologies , Volume 1 , Special Issue 3: Surveillance systems for air and airport traffic control , June 2009 , pp. 215 - 222
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2009

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References

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