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Range determination in a multipath prone environment

Range determination in a multipath prone environment

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The distance of the closest point of approach, along an aircraft flight path, to a beacon is required. Aircraft/beacon range information is achieved by the use of a dual Doppler technique. The Dopplers are corrupted by multipath interference. Two digital tracking filters succeed in significantly reducing errors in range caused by the multipath signals.

References

    1. 1)
      • Bortz, G.: `Miss-distance determination in the presence of multipath', May 1990, engineering masters degree, University of Pretoria, Manuscript submitted for.
    2. 2)
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      • E.J. Barlow . Doppler radar. Proc. IRE , 4 , 340 - 355
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      • I.J. Statman , E.R. Rodemich . Parameter estimation based on doppler frequency shifts. IEEE Trans. , 1 , 31 - 39
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