Publications de Aleksandar Jovanovic

Advanced Tracking Algorithm Designs for New Galileo Signals and Security Protection and Mitigation

EPFL2014

Multi-test Detection and Protection Algorithm Against Spoofing Attacks on GNSS Receivers

Pierre-André Farine, Cyril Botteron, Aleksandar Jovanovic

The vulnerability against interference, spoofing, and jamming of GNSS receivers is considered nowadays a major security concern. This security threat is exacerbated with the existing market availability of GPS jamming and spoofing equipment sold at reasona ...

2014

Method to secure gnss based locations in a device having gnss receiver

Panagiotis Papadimitratos, Aleksandar Jovanovic

A method to detect at a GNSS receiver whether the received GNSS signals and navigation messages are the product of an attack. If there is evidence, as provided by the method described here, that the received signals and messages originate from adversarial ...

2012

Two-Step Galileo E1 CBOC Tracking Algorithm:When Reliability and Robustness Are Keys!

Pierre-André Farine, Cyril Botteron, Aleksandar Jovanovic

The majority of 3G mobile phones have an integrated GPS chip enabling them to calculate a navigation solution. But to deliver continuous and accurate location information, the satellite tracking process has to be stable and reliable. This is still challeng ...

2012

Dual Channel Optimization of Tracking Schemes for E1 CBOC Signal

Pierre-André Farine, Cyril Botteron, Aleksandar Jovanovic, Youssef Tawk

New generation of satellite navigation signals, such as AltBOC (Alternative Binary Offset Keying), CBOC (Composite Binary Offset Keying) and TMBOC (Time Multiplex Binary Offset Keying) bring enhancements in the tracking process, such as more signal power, ...

IEEE2011

Analysis of Galileo E5 and E5ab code tracking

Pierre-André Farine, Cyril Botteron, Aleksandar Jovanovic, Youssef Tawk

The world of global navigation satellite systems has been enhanced with several new or improved signals in space aiming to optimize accuracy, reliability, navigation solution, and interoperability between different constellations. However, such development ...

Springer-Verlag2011

A New FFT-Based Algorithm for Secondary Code Acquisition for Galileo Signals

Pierre-André Farine, Cyril Botteron, Aleksandar Jovanovic, Jérôme Leclère, Youssef Tawk

The innovative spreading codes used to modulate the new Galileo signals creates new challenges for receiver designers. It is well known in GNSS systems that longer integration times are needed to obtain a better sensitivity. However, the existence of the n ...

IEEE2011

Implementation and Optimization of a Galileo E1 Two-Step Tracking Algorithm using Data/Pilot Combining and Extended Integration Time

Pierre-André Farine, Cyril Botteron, Aleksandar Jovanovic, Youssef Tawk

This paper brings additional light on the previously proposed two-step tracking algorithm for E1 CBOC tracking. More specifically, assessment of the different DLL and PLL tracking loop architectures are analyzed, taking into consideration coherent and non- ...

Inst Navigation2011

Multipath Mitigation Techniques for CBOC, TMBOC and AltBOC Signals using Advanced Correlators Architectures

Pierre-André Farine, Cyril Botteron, Aleksandar Jovanovic, Youssef Tawk

Multipath mitigation in urban canyons and indoor environments is an open issue for the reception of GNSS signals for high precision applications, as the presence of multipath components can lead to signal fading and ranging errors. New families of navigati ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010

Acquisition Performance of Galileo E5a Signal

Pierre-André Farine, Cyril Botteron, Aleksandar Jovanovic, Youssef Tawk

The introduction of new modulations on the global navigation satellite systems brings potential improvements for ground positioning. Clever receiver designs taking advantage of the characteristics of the new signals will be able to achieve better accuracy, ...

2010