Anno accademico 2018/2019

E-mail :
E-mail :

Pia Astone web pages

Sergio Frasca web pages

First meeting with students: Friday 15 march 2019.

Next meetings, lectures and tutorials:  
Monday 18 march18-19.30 G23. P. Astone
Wednesday 20 march 18-19.30 G23. P. Astone
Wednesday 27 march 18.15-19.300 G23. P. Astone
Tuesday 2 march 18-19.30 G23. P. Astone
Work on Tuesdays @ G23 18-19.30 G23.

Official working hours in our lab: Tuesdays from 2/3 to 6/7 PM

Presentation of the project (March, 5th 2019)

The program in short

Data analysis for gravitational wave detectors like LIGO and Virgo.
The signals analyzed will be those of the coalescence of two black holes of solar masses (CBC signalss), like GW150914
Lectures on general aspects of gw experiments and searches will be given at the beginning. Students will learn signal processing methods (FFTs, spectral analysis, filtering, procedures to extract signals from noise). They will construct and apply mathed filtering to CBC signals and then construct a grid of matched filters in order to evaluate the effect of a mismatch in the parameters of the filter vs the real signal. If there is interest, implementation and optimization of the code on GPUs will be included in the project. Programming language is Matlab. The analysis will be done using simulated data (chirp signals added to white noise), to begin, and then on real data LIGO or Virgo data (if there will be enough time and interest).

Link to lectures:

  • How the interferometer works and some basic aspects of the gw search. P. Astone
  • The search for compact binary coalescences in LIGO and Virgo data. P. Astone
  • Data analysis: signals. P. Astone/S. Frasca
  • Data analysis: filtering. P. Astone/S. Frasca

  • Link to material:

  • The software
  • Examples
  • Evolving info document
  • Matched filtering applied to CBC signals
  • S. Frasca. Lab Segnali e sistemi
  • Other material:

  • LIGO/Virgo open data center
  • CBC signals release
  • Science summaries of the LIGO/Virgo papers

  • Back to Pia Astone web pages

    Back to Sergio Frasca web pages