Research Article
A High-Efficiency Fatigued Speech Feature Selection Method for Air Traffic Controllers Based on Improved Compressed Sensing
Table 1
List of terminologies used in this paper.
| ATC | Air traffic controller |
| ATCs | Air traffic controllers | MFCC | Mel-frequency cepstrum coefficient | CS | Compressed sensing | ETF | Equal-dimensional tight frame | FD | Fractal dimension | ICSCA | Improved CS construction algorithm (ICSCA) | NP | Nondeterministic polynomial | OMP | Orthogonal matching pursuit | RIP | Restricted isometry property | RBF | Radial basis function | SVM | Support vector machine | SWFF | Speech wavelet fractal feature | WLS-SVM | Weighted-least-squares SVM |
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