In accordance with the “performance-based” philosophy which is currently being developed by the ICAO working groups and the complementary activities at Eurocontrol and Eurocae, the performance of multilateration systems has been regarded by national certification agencies as being equal to ICAO secondary radar standards. However, over a number of separate evaluations and in-service operational measurements, multilateration systems have routinely been proven to greatly exceed the performance standards of radar in terms of accuracy.
“WAM systems are potentially capable of significantly higher accuracies than an equivalent radar service.”
Wide Area Multilateration Report on EATMP
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Eurocontrol reported that multilateration greatly outperformed the accuracy of SSR where coverage existed.