A Novel Modulation Classification Approach Using Gabor Filter Network

Table 1

Updated Gabor filter atom parameters and weights for PSK modulation 2–64.

Shift parameter (𝑐)
PSK2	PSK4	PSK8	PSK16	PSK32	PSK64
5.54	5.07	5.77	5.65	4.81	5.27
5.77	5.90	4.25	4.45	4.18	4.29
4.69	4.24	4.33	5.20	4.56	5.56
4.63	4.72	4.83	4.17	4.67	4.56
5.02	4.29	5.00	4.08	5.13	4.59
5.03	5.18	5.68	5.89	5.23	4.79
5.16	5.09	5.89	4.91	5.79	4.63
4.61	4.67	5.52	5.91	4.35	4.47
4.48	4.59	5.13	5.62	5.61	4.47
5.43	5.14	5.13	4.94	4.15	4.75
Scale parameter (𝜎)
PSK2	PSK4	PSK8	PSK16	PSK32	PSK64
15.63	16.25	10.25	16.76	1.67	2.45
16.03	8.57	8.17	5.18	13.53	16.21
14.87	14.08	2.55	18.87	6.78	5.33
1.92	18.27	12.31	6.63	13.33	4.66
6.44	3.16	11.89	18.48	9.38	5.94
13.32	3.17	4.80	6.85	11.90	2.50
11.49	12.94	12.83	15.33	7.44	15.29
14.39	3.33	7.33	7.58	6.03	5.21
19.04	14.23	7.39	5.13	18.00	12.81
8.67	2.94	8.48	1.05	12.56	2.59
Modulation parameter (𝑓)
PSK2	PSK4	PSK8	PSK16	PSK32	PSK64
2.35	−0.05	0.80	3.14	−0.53	1.82
−2.72	−0.56	−0.37	−0.53	2.90	−3.02
1.91	2.52	−1.90	0.95	−1.33	−2.24
−1.02	0.10	−1.55	1.46	2.47	0.38
1.73	1.08	1.83	1.51	−0.75	−1.89
−2.75	−1.83	−2.57	−1.42	2.66	1.10
0.47	0.20	−2.79	−2.21	0.54	−1.57
0.32	0.11	−0.93	−1.56	−0.94	−0.55
1.88	0.33	−2.59	0.31	−1.28	0.68
−0.76	−2.27	0.07	2.83	−1.01	−1.70
Weights (𝑤)
PSK2	PSK4	PSK8	PSK16	PSK32	PSK64
5.059	−2.625	−0.747	−0.119	0.837	−4.310
−1.823	−1.927	0.671	0.297	1.309	−3.073
6.844	−2.482	−0.533	−0.371	−3.033	8.333
1.847	2.528	0.499	−0.356	−0.894	−3.802
5.384	−0.090	0.677	−0.346	−1.484	1.413
8.671	1.923	0.256	−0.917	−0.843	3.887
0.058	−2.857	−0.703	−0.455	0.449	−1.762
−1.356	1.852	−0.555	−0.487	−1.844	2.682
1.899	1.055	0.481	−1.498	0.844	−3.901
−3.603	−2.714	0.402	−0.664	1.832	2.549