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

Author

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

Author_Institution

CRESTIC, Univ. of Reims, Reims, France

fYear

2014

fDate

15-16 Sept. 2014

Firstpage

87

Lastpage

91

Abstract

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.

Keywords

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; linear algebra; mode S signals; multilateration system; receiver; secondary surveillance radar; Arrays; Decoding; Delay effects; Educational institutions; Radar; Surveillance; Vectors; ADS-B; Mode S; Multilateration; SSR; algebraic algorithm; joint diagonalisation; signals separation;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Communications - Enhanced Surveillance of Aircraft and Vehicles (TIWDC/ESAV), 2014 Tyrrhenian International Workshop on

Conference_Location

Rome

Type

conf

DOI

10.1109/TIWDC-ESAV.2014.6945454

Filename

6945454