Figure 2

Comparison of the performances of the proposed anomaly detector using a random Φ , the proposed anomaly detector using the designed Φ in ( 24 ) and the GLRT-based method operating on downsampled data for different values of K when ${\alpha }_i^{\ast }\in \mathcal{U}[2,3]$ and ${\alpha }_i={\alpha }_i^{\ast }\sqrt{K}$ .