For the cycle of seminars Pavia-Milano Seminar Series on Probability and Mathematical Statistics, organised jointly by the Universities of Milano-Bicocca, Pavia and Milano-Politecnico, Claudio Durastanti (University Roma La Sapienza) will hold the following seminar:
Title: Aliasing effects for random fields over the sphere
Abstract: This talk explores aliasing effects that arise during the reconstruction from discrete samples of spin spherical random fields defined on the sphere, with a brief discussion of the scalar case. With a fixed sampling method for obtaining field samples, we identify the location and intensity of aliases in the frequency domain for the harmonic coefficients in the Fourier decomposition of the random field and assess the impact of aliasing errors on the angular power spectrum. Finally, we show that band-limited spin random fields can be free from aliasing if a sufficiently large number of samples is taken.
Date and time: Tuesday 4 February 2025, at 2-3 pm (Rome time zone)
Place: Room 3014 (3rd Floor), Department of Mathematics and Applications - U5 Building, University of Milano-Bicocca.
Information to attend online
Webex Meeting Link: https://unimib.webex.com/unimib-it/j.php?MTID=m043184e9df27521cc217c37e64d56b9e
Meeting Number: 27419078097
Password: wSZNHJFa923
Participation is free and welcome!
For more information, visit the website