Guest Lecture from Prof. Jerome MARS (GIPSA-LAB, France): Signal Processing
Bandung Institute of Technology Geophysical Engineering Study Program, as an effort to increase cooperation and abilities of ITB geophysics students. ITB Geophysical Engineering in collaboration with the Grenoble Institute of Technology (G-INP) held a guest lecture on signal processing in its application to geophysics. This public lecture lasted for 3 days, held from Wednesday 14 September 2016 to Friday 16 September 2016, at the ITB Ganesha Campus Energy Building Hall. This public lecture was not only attended by geophysical engineering students, but there were also participants from ITB earth science and the Meteorology, Climatology and Geophysics Agency (BMKG). The speaker is a Professor in the field of signal processing at GIPSA-LAB (one of the labs at G-INP), namely Prof. Jerome MARS.
In this lecture, participants are invited to recognize the nature of waves and signals in geophysics. The first day began with a brief introduction to the Fourier transform and spectral density measurement. Participants are equipped with basic concepts of signals in general to understand more fundamentally the physical meaning of Fourier transforms and spectral density measurements.
The second day starts again with mastery of the next signal processing concepts, namely time sampling and Shannon theory, signal correlation, instantaneous frequency, and convolution. Participants learned many new things on the second day. Starting with knowledge about its applications in various signal processing fields, such as health, telecommunications and music. Next, we continue with the application of this signal processing method in the field of Geophysics, because in geophysical signal processing the basic processes are very familiar to carry out. Therefore, the participants seemed very enthusiastic about the many questions and discussions that took place.
On the third day, the lecture emphasized more on signal processing applications specifically for the field of geophysics. The material taught is Wiener Filter, FK filtering, beamforming, multidimensional filters, DOA (directional on arrival), and music. This material will be very useful in selecting data from external disturbances (noise) so that the results obtained are signals that are purely responses from below the earth’s surface.
Public lecture activities involving lecturers from abroad are very good to implement. Apart from familiarizing students with the global environment, it can also provide a new teaching perspective. For the ITB Geophysical Engineering Study Program itself, it is very beneficial so that it can collaborate with universities abroad and enable students to obtain a double degree in Indonesia and abroad.
