Improved MDA, a case for de-garbling SSR mode S replies

Petrochilos, N.,Piracci, E.G.,Galati, G.

Digital Communications - Enhanced Surveillance of Aircraft and Vehicles（2014）

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摘要

Multilateration (MLAT) and Automatic Dependent Surveillance - Broadcast (ADS-B) systems exploiting the Secondary Surveillance Radar (SSR) channel suffer from garbling. This means that if two or more mode S signals impinge on the receiver at the same or very near time they could not be decoded. To alleviate this problem, many solutions have been proposed, one in particular [1] is effective for a large variety of scenarios, but excluding the cases when the replies are too much separated in time. Recently a paper [2] focused on linear algebra presented a potential solution for this case. In this work we present a practical application for the case of two mode S signals.

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关键词

airborne radar,broadcasting,linear algebra,radar receivers,radar signal processing,search radar,ads-b system,mlat,ssr,automatic dependent surveillance-broadcast,de-garbling ssr mode,improved mda,mode s signals,multilateration system,receiver,secondary surveillance radar,ads-b,mode s,multilateration,algebraic algorithm,joint diagonalisation,signals separation,vectors,radar,decoding

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