Week Name Description
SIGARRA Course Info UC info
SIGARRA Summaries Sumários SIGARRA
30 September - 6 October File Review: the Z-Transform
File Review: the Discrete Fourier Transform (DFT)
File Review: the Fast Fourier Transform (FFT)
7 October - 13 October File A review of discrete-time random processes
File A representation of the subbands of the DFT (when looked at as a filter bank)
21 October - 27 October File slides on Spectrum estimation
28 October - 3 November File Results of first Quiz
File Home Assignment (to be handed-in by November 15)
File Matlab scripts required for this home assignment
4 November - 10 November File Filtragem adaptativa numa perspetiva prática
11 November - 17 November File OFDM assignment - description
File OFDM assignment - captured data
File OFDM assignment - start and ending chirps
18 November - 24 November File SONAR assignment - description
25 November - 1 December File SAS assignment - description
File SAS assignment - captured data
2 December - 8 December File rec_B022_01

First audio file recorded during class corresponding to the synthetic aperture sonar experiment performed with the following parameters: sampling frequency: 44100 Hz; transmitted signal: upward chirp of 400 samples, with a bandwidth of 8 kHz and shaped with both a Kaiser window (parameter equal to 3.5) and a Turkey window (parameter equal to 0.05); PRF: 15 Hz; carrier frequency: 10 kHz; synthetic aperture length: approximately 2.8 m.
File rec_B022_02

Second audio file recorded during class corresponding to the synthetic aperture sonar experiment performed with the following parameters: sampling frequency: 44100 Hz; transmitted signal: upward chirp of 400 samples, with a bandwidth of 8 kHz and shaped with both a Kaiser window (parameter equal to 3.5) and a Turkey window (parameter equal to 0.05); PRF: 15 Hz; carrier frequency: 10 kHz; synthetic aperture length: approximately 2.8 m.
File rec_B022_target

Target area image of the synthetic aperture sonar experiment performed during class with the following parameters: sampling frequency: 44100 Hz; transmitted signal: upward chirp of 400 samples, with a bandwidth of 8 kHz and shaped with both a Kaiser window (parameter equal to 3.5) and a Turkey window (parameter equal to 0.05); PRF: 15 Hz; carrier frequency: 10 kHz; synthetic aperture length: approximately 2.8 m.
File Final Assessment Results (v10Feb2025)