One of the most important parts of the present and future Air Traffic Control system is the Automatic Dependent Surveillance-Broadcast (ADS-B) system [1] [2]; in this system aircraft transmit (with a given periodicity) their position, velocity and identity to equipped aircraft or ground station for surveillance purposes [3]. The on-board navigation system, mainly based on the GPS unit, is used to calculate these information and the Secondary Surveillance Radar transponder is used to broadcast messages containing these information on the common RF channel. Receiving these messages the ATC centres are able to have a traffic awareness.An important limitation of this protocol is that the throughput is limited by a particular interfering problem: the garbling effect (that is the reception of superimposed signals coming from different aircraft). A method to reduce this effect is proposed in this work. The method exploits a multichannel receiver and the Principal Component Analysis and is suitable for implementation in low cost Software Defined Radio. It is also evaluated using real signals varying the Hardware parameters (such as Band, ADC characteristics and Oscillator stability) to identify which Hardware can be adopted for its implementation.

Leonardi, M., Maisano, M. (2019). Degarbling technique for low cost ADS-B receivers. In 2019 IEEE 5th International Workshop on Metrology for AeroSpace (MetroAeroSpace) (pp.65-69) [10.1109/MetroAeroSpace.2019.8869689].

Degarbling technique for low cost ADS-B receivers

Leonardi M.
;
2019-06-01

Abstract

One of the most important parts of the present and future Air Traffic Control system is the Automatic Dependent Surveillance-Broadcast (ADS-B) system [1] [2]; in this system aircraft transmit (with a given periodicity) their position, velocity and identity to equipped aircraft or ground station for surveillance purposes [3]. The on-board navigation system, mainly based on the GPS unit, is used to calculate these information and the Secondary Surveillance Radar transponder is used to broadcast messages containing these information on the common RF channel. Receiving these messages the ATC centres are able to have a traffic awareness.An important limitation of this protocol is that the throughput is limited by a particular interfering problem: the garbling effect (that is the reception of superimposed signals coming from different aircraft). A method to reduce this effect is proposed in this work. The method exploits a multichannel receiver and the Principal Component Analysis and is suitable for implementation in low cost Software Defined Radio. It is also evaluated using real signals varying the Hardware parameters (such as Band, ADC characteristics and Oscillator stability) to identify which Hardware can be adopted for its implementation.
IEEE International Workshop on Metrology for AeroSpace, MetroAeroSpace 2019
Torino
2019
Rilevanza internazionale
contributo
giu-2019
Settore ING-INF/03 - TELECOMUNICAZIONI
English
ADS-B; Blind Source Separation;Garbling;Principal Component Analysis
Intervento a convegno
Leonardi, M., Maisano, M. (2019). Degarbling technique for low cost ADS-B receivers. In 2019 IEEE 5th International Workshop on Metrology for AeroSpace (MetroAeroSpace) (pp.65-69) [10.1109/MetroAeroSpace.2019.8869689].
Leonardi, M; Maisano, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/224123
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