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Fig. 6 | EURASIP Journal on Advances in Signal Processing

Fig. 6

From: Class-specific discriminant time-frequency analysis using novel jointly learnt non-negative matrix factorization

Fig. 6

The TF structures of class 1 (a) and class 2 (b) are shown in this figure. Each class consists of a tone at random frequency uniformly distributed between 0.15 and 0.3, and a linear chirp signal starting at normalized frequency 0.40 and ending at a random frequency uniformly distributed between 0.1 and 0.2 for class 1 and between 0.25 and 0.35 for class 2. The test signals c with 100 % overlap between class 1 and 2 signals are generated

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