TY - CHAP
T1 - Detection, Characterization, and Localization of Interference Signals in Wideband GNSS Environments
T2 - the GIMAD System
AU - Fabra, Fran
AU - Seco-Granados, Gonzalo
AU - Lopez-Salcedo, Jose A.
AU - Obiols, Enric
AU - Creus, Angel
AU - Gonzalez-Novell, Antonio
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - We present in this paper a design for a monitor-ization station that will be part of a network of receivers in charge of providing a service for detection, characterization, and localization of interfering signals in safety critical GNSS environments. The purpose is to cover a wideband frequency range from 800 MHz to 1900 MHz with a power level mask taken from EGNOS and DFMC GBAS requirements. The proposed design combines two four-element arrays with two USRP units for collecting signals within the desired SNR margins. A comparative simulation study has been done to evaluate different techniques for interference detection, characterization, and estimation of its angle of arrival. The results show that a combination of power and kurtosis monitorization, both in temporal and frequency do-mains, is a proper solution to detect different types of interfering signals. In order to assure the best signal characterization, the use of the three selected techniques serves to overcome their respective limitations. For angle of arrival estimation, the fact of working in a suboptimal array configuration provides more robustness against outliers for certain geometries.
AB - We present in this paper a design for a monitor-ization station that will be part of a network of receivers in charge of providing a service for detection, characterization, and localization of interfering signals in safety critical GNSS environments. The purpose is to cover a wideband frequency range from 800 MHz to 1900 MHz with a power level mask taken from EGNOS and DFMC GBAS requirements. The proposed design combines two four-element arrays with two USRP units for collecting signals within the desired SNR margins. A comparative simulation study has been done to evaluate different techniques for interference detection, characterization, and estimation of its angle of arrival. The results show that a combination of power and kurtosis monitorization, both in temporal and frequency do-mains, is a proper solution to detect different types of interfering signals. In order to assure the best signal characterization, the use of the three selected techniques serves to overcome their respective limitations. For angle of arrival estimation, the fact of working in a suboptimal array configuration provides more robustness against outliers for certain geometries.
KW - Galileo
KW - GNSS
KW - interference detection
KW - jaming
KW - localization
UR - https://www.scopus.com/pages/publications/85137344837
U2 - 10.1109/NAVITEC53682.2022.9847560
DO - 10.1109/NAVITEC53682.2022.9847560
M3 - Chapter
AN - SCOPUS:85137344837
T3 - 2022 10th Workshop on Satellite Navigation Technology, NAVITEC 2022
BT - 2022 10th Workshop on Satellite Navigation Technology, NAVITEC 2022
PB - Institute of Electrical and Electronics Engineers Inc.
ER -