Table 2 Specifications and parameters for the rotor noise PSD estimation DAE and RPSL post-processing algorithm
STFT length (overlap shift) | 2048 [46.4 ms] (1024 [23.2 ms]) |
|---|---|
Forgetting factorλ | 0.3 |
Dimension of each frame | 1 ×1024 (TDAE×F) |
Training dataset | |
Total no. of frames (from hovering UAV dataset) | 417,180 [9687 s] |
Total no. of frames (from flying UAV dataset, broadband) | 4675 [108.6 s] |
Total no. of frames (from flying UAV dataset, speech) | 9435 [219.1 s] |
Learning rate | 5 ×10−5 |
No. of epochs | 2000 |
Testing dataset | |
Total no. of frames (from hovering UAV dataset) | 39,182 [920.1 s] |
Total no. of frames (from flying UAV dataset, broadband) | 3420 [80 s] |
Total no. of frames (from flying UAV dataset, speech) | 2736 [64 s] |
RPSL parameters | |
\(\Delta \vec {\theta }_{\text {res}}\) (deg) | 50 (task 2), 35 (task 3) |