Publications by Andrea Ridolfi

Experiences with Reproducible Research in Various Facets of Signal Processing Research

Martin Vetterli, Patrick Vandewalle, Guillermo Barrenetxea Kobas, Andrea Ridolfi, Ivana Jovanovic

How often have you been able to implement an algorithm as it is described in a paper? And when you did, were you confident that you had exactly the same parameter values and results as the authors of the paper? All too often, articles do not describe all t ...

2007

Ultrawide Bandwidth Signals as Shot-Noise: a Unifying Approach

Andrea Ridolfi

We present a shot noise based model for a large family of ultrawide bandwidth (UWB) signals. These include time-hopping and direct-sequence signaling with pulse position, interval, and amplitude modulations. Each specific signal is constructed by adding fe ...

Institute of Electrical and Electronics Engineers2006

On a stochastic version of the plenacoustic function

Martin Vetterli, Luciano Sbaiz, Andrea Ridolfi, Thibaut Ajdler

In this paper, we model a spatially varying channel where a source is moving along a random trajectory with respect to a fixed re- ceiver. The aim is to compute the power spectral density corre- sponding to the channel impulse response as a function of tem ...

2006

UWB Signals as Shot Noises

Andrea Ridolfi

We present a shot-noise based model for a large family of ultrawide bandwidth (UWB) signals. These include time-hopping and direct-sequence signaling with pulse position, interval and amplitude modulations. Each specific signal is constructed by adding fea ...

2005

Power spectra of random spike fields and related processes

Pierre Bremaud, Andrea Ridolfi

This article reviews known results and contains new ones concerning the power spectra of large classes of signals and random fields driven by an underlying point process, such as spatial shot noises (with random impulse response and arbitrary basic station ...

2005

Power Spectra of Multipath Faded Pulse Trains

Andrea Ridolfi

We address the problem of modeling received pulse trains in a multipath fading channel and of computing their exact spectrum. We propose a model based on point processes. Such model is very general, simple and tractable and it allows to account for various ...

2005

Power spectra of random spikes and related complex signals : with application to communications

Andrea Ridolfi

"Random spikes" belong to the common language used by engineers, physicists and biologists to describe events associated with time records, locations in space, or more generally, space-time events. Indeed, data and signals consisting of, or structured by, ...

EPFL2005

Power Spectra of UWB Time-hopping Modulated Signals: a Shot Noise Approach

Pierre Bremaud, Andrea Ridolfi

This paper presents a general method for obtaining the exact power spectra of generic time hopping modulated signals. Based on a point process approach, it provides simpler proofs for existing results and a powerful rigorous and at the same time systematic ...

2004

Power Spectra of Spatial Hawkes Processes

Pierre Bremaud, Andrea Ridolfi

In this paper we derive the formula giving the spectrum of a spatial general linear birth and death process ...

2004

Penalized maximum likelihood estimator for normal mixtures

Andrea Ridolfi

2002