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Cyril Botteron

Cette personne a quitté l’EPFL

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Publications associées (81)

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Acquisition of modern GNSS signals using a modified parallel code-phase search architecture

Pierre-André Farine, Cyril Botteron, Jérôme Leclère

The acquisition of global navigation satellite system signals can be performed using a fast Fourier transform (FFT). The FFT-based acquisition performs a circular correlation, and is thus sensitive to potential transitions between consecutive periods of th ...

Elsevier Science Bv2014

Resource and Performance Comparisons for Different Acquisition Methods that can be Applied to a VHDL-based GPS Receiver in Standalone and Assisted Cases

Pierre-André Farine, Cyril Botteron, Jérôme Leclère

There are mainly three well-known techniques to acquire a GNSS signal. The first, called Serial Search Acquisition, consist in correlating the Pseudo-Random Noise (PRN) codes for all the codes phases and all the frequency bins. The two others make use of t ...

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

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

A New Estimation Algorithm for the GNSS-R Interference Pattern Technique: The Segmented Maximum-Likelihood

Pierre-André Farine, Cyril Botteron, Miguel Angel Ribot Sanfelix

During the last years, Global Navigation Satellite Systems (GNSS) reflectometry (GNSS-R) receivers have proven in several field experiments that GNSS signals reflected and scattered from the Earth’s surface can be used in passive remote sensing application ...

2015

Feature article: High sensitivity acquisition of GNSS signals with secondary code on FPGAs

Pierre-André Farine, Cyril Botteron, Jérôme Leclère

The modern global navigation satellite systems (GNSS) signals, such as the Global Positioning System (GPS) L5 and L1C, and Galileo E5 and E1, have brought several innovations: the introduction of a pilot channel that does not contain any data to allow very ...

Institute of Electrical and Electronics Engineers2017

A 120mV startup circuit based on charge pump for energy harvesting circuits

Pierre-André Farine, Cyril Botteron

In this paper, a 120mV input startup circuit based on novel charge pump architecture is proposed. The startup circuit can boost input voltages ranging from 120mV to 300mV while supplying voltages 280mV to 1.6V at the output with approximately 23% efficienc ...

2011

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

Availability and ranging error analysis for a GPS L1/L5 receiver navigating to the Moon

Pierre-André Farine, Cyril Botteron, Vincenzo Capuano, Paul David Blunt, Ban Wang, Endrit Shehaj

Global Navigation Satellite System (GNSS) based navigation is already adopted in Low Earth Orbit (LEO), where the presence of strong GNSS signals and the good relative geometry between the receiver and the transmitters enable precise orbit determination. H ...

Ieee2017

Modified parallel code-phase search for acquisition in presence of sign transition

Pierre-André Farine, Cyril Botteron, Jérôme Leclère

One of the method to have a fast acquisition of GNSS signals is the parallel code-phase search, which uses the fast Fourier transform (FFT) to perform the correlation. A problem with this method is the potential sign transition that can happen between two ...

2013

GNSS/INS/Star Tracker Integration for Real-Time On-Board Autonomous Orbit and Attitude Determination in LEO, MEO, GEO and Beyond

Pierre-André Farine, Cyril Botteron, Vincenzo Capuano, Paul David Blunt, Endrit Shehaj

In our previous studies, we demonstrated that Global Navigation Satellite System (GNSS) signals can be processed, not only in Low Earth Orbit (LEO), but also in higher earth orbits, up to the Moon. In order to maximize the GNSSbased navigation performance, ...

2017

Bulk-source-coupled CMOS Quadrature Oscillators

Pierre-André Farine, Cyril Botteron, Uroschanit Yodprasit

A quadrature oscillator based on a coupling between the bulk and the source of MOS transistors is proposed. Since the resonator load is not directly involved in the coupling process, the oscillation frequency is very close to the resonant frequency, hence ...

Institution of Engineering and Technology2009

Performance Comparison of Different Correlation Techniques for the AltBOC Modulation in Multipath Environments

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

In this paper, different correlation techniques (narrow correlator, double delta correlator and subcarrier processing) that can be applied to the new Galileo alternate binary offset carrier AltBOC(15,10) modulation are discussed with respect to their funct ...

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

A sub-µA power management circuit in 0.18µm CMOS for energy harvesters

Pierre-André Farine, Cyril Botteron, Christian Robert, Gabriele Tasselli

We explore a miniature sensor node that could be placed in an environment which would interrogate, take decisions and transmit autonomously and seamlessly without the need of a battery. With the system completely powered by an energy harvester for autonomo ...

2013

How does one compute the noise power to simulate real and complex GNSS signals?

Cyril Botteron, Jérôme Leclère

Simulation of GNSS signals is very important to test and validate algorithms. With some algorithms, such as acquisition or tracking, we do not need to simulate a realistic constellation with actual ranges, Doppler or navigation data. We can simply simulate ...

2016

Design Methodology for Common-Mode Stability of OTA-based Gyrators

Pierre-André Farine, Cyril Botteron, Gabriele Tasselli, Saeed Ghamari

This paper presents a design methodology for common-mode (CM) stability of operational transconductance ampliﬁer (OTA)-based gyrators. The topology of gm−C active inductors is brieﬂy reviewed. Subsequently, a comprehensive mathematical analysis on the CM s ...

Wiley2016

Design Experiences of a CMOS LNA for mm-waves

Pierre-André Farine, Cyril Botteron, Steve Tanner, Enrique Rivera Parada

This paper describes some of the design experiences achieved during the design, simulation and characterization of a Complementary Metal-Oxide Semiconductor (CMOS) LNA which has been designed for 24GHz and fabricated in a standard 0.180 µm technology. More ...

2010

Demands of the Road An Assisted-GNSS Solution Uses the EGNOS Data Access Service

Cyril Botteron, Jérôme Leclère

For use in billing drivers in road-user charging schemes, onboard units employing GNSS must meet stringent reliability and availability requirements, and at the same time, be based on low-cost equipment systems. The SIGNATURE unit includes an assistance se ...

2011

Soil Moisture & Snow Properties Determination with GNSS in Alpine Environments: Challenges, Status, and Perspectives

Pierre-André Farine, Jan Skaloud, Cyril Botteron, Steven Vincent Weijs, Jérôme Leclère

Moisture content in the soil and snow in the alpine environment is an important factor, not only for environmentally oriented research, but also for decision making in agriculture and hazard management. Current observation techniques quantifying soil moist ...

2013

Real-Time GNSS Software Receiver: Challenges, Status and Perspectives

Pierre-André Farine, Cyril Botteron

Challenges and current status of algorithms of code and carrier generation and baseband processing, including single-instruction multiptle-data (SIMD) operations and bit-wise processing. ...

2009

A Versatile 1.4-mW 6-bits CMOS ADC for Pulse-Based UWB Communication Systems

Pierre-André Farine, Cyril Botteron, Christian Robert, Saeed Ghamari

An Analog to Digital Converter (ADC) using the low duty-cycle nature of pulse-based Ultra Wide-Band (UWB) communications to reduce its power consumption is proposed. Implemented in CMOS 180 nm technology, it can capture a 5 ns window at 4 GS/s each 100 ns, ...

2014