Research Article
A New Smoothed L0 Regularization Approach for Sparse Signal Recovery
Table 2
NMSE analysis for BPDN, SL0, L2-SL0,
-RLS, and proposed RRSL0 with noise intensity changes according to sequence
while 100 runs.
| | Noise intensity () | NMSE of signal recovery | | BPDN | L0 | L2-SL0 | Lp-RLS | RRSL0 |
| | 0 | 2.553e-05 | 1.311e-07 | 4.563e-07 | 1.563e-07 | 2.338e-07 | | 0.01 | 4.659e-04 | 3.054e-04 | 2.352e-04 | 7.930e-05 | 6.032e-05 | | 0.05 | 1.607e-03 | 4.079e-03 | 9.012e-04 | 2.384e-04 | 1.150e-04 | | 0.1 | 7.633e-03 | 8.424e-03 | 3.309e-03 | 7.793e-04 | 5.522e-04 | | 0.2 | 1.381e-02 | 2.090e-02 | 6.091e-03 | 1.130e-03 | 8.892e-04 | | 0.5 | 3.063e-02 | 6.908e-02 | 1.083e-02 | 5.743e-03 | 3.041e-03 |
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