Publicado em: 18/08/2014

Palestra: Array Signal Processing for Global Navigation Satellite Systems

No dia 20/8, quarta-feira, às 14h, no Auditório do Prédio 67 do Instituto de Informática, acontecerá a palestra intitulada “Array Signal Processing for Global Navigation Satellite Systems”, ministrada pelo Dr. Felix Antreich, do German Aerospace Center, Alemanha.

Título: Array Signal Processing for Global Navigation Satellite Systems
Palestrante: Dr. Felix Antreich, do German Aerospace Center, Alemanha
Quando: próxima quarta-feira, dia 20/8, às 14:00 horas
Onde: Auditório Prédio 67, Instituto de Informática

Resumo da palestra:

The quality of the ranging data provided by a Global Navigation Satellite Systems (GNSS) receiver largely depends on the synchronization error, that is, on the accuracy of the propagation time-delay estimation of the line-of-sight (LOS) signal. In case the LOS signal is corrupted by several superimposed delayed replicas (reflective, diffractive, or refractive multipath), the estimation of the propagation time-delay and thus the position can be severely degraded. Furthermore, radio interference is another dangerous threat to GNSS applications, which severely degrades positioning performance and availability.

This talk introduces and motivates the application of array signal processing for time-delay estimation of the LOS signal GNSS in a multipath and interference environment. An overview on the activities that are carried out at the German Aerospace Center (DLR) with respect to array processing, array antennas and hardware development is provided. A blind beam former based on orthogonal projections and an approach based on space-time adaptive principle component analysis for multipath and interference mitigation are presented.

Short Biography of Dr. Felix Antreich:
Felix Antreich received the Diploma degree in Electrical Engineering from the Munich University of Technology (TUM), Munich, Germany, in 2003. In 2011 he received the Doktor-Ingenieur (Ph.D.) degree also from the TUM. Since July 2003, he has been an Associate Researcher with the Department of Navigation, Institute of Communications and Navigation of the German Aerospace Center (DLR), Wessling-Oberpfaffenhofen, Germany.

He is currently a Special Visiting Researcher (PVE) at the University of Brasilia (UnB) within the Programa Ciência sem Fronteiras funded by CAPES and CNPq.
His research interests include sensor array signal processing for global navigation satellite systems (GNSS) and wireless communications, estimation theory and signal design for synchronization, and GNSS.