Synthetic Aperture Radar Image Background Clutter Fitting Using SKS + MoM-Based Distribution

Table 1

The MSE values of nine parameter models fitting six clutter regions.

Parameter models	Clutter regions
	1	2	3	4	5	6
MoM-based lognormal	17.279	32.756	11.876	292.04	242.53	64.221
MLE-based lognormal	10.205	2.2485	5.0526	316.94	449.45	75.796
MoM-based gamma	2.0844	13.792	6.9545	114.68	171.43	104.23
MLE-based gamma	3.1056	57.116	8.1760	3682.5	3542.0	450.79
MoM-based	—	—	1.6403	—	—	—
Freitas’ MoM-based	2.0843	13.792	6.9545	114.68	171.47	104.25
Fully parametric MoM-based	—	—	2.1876	—	—	53.998
SKS-based	0.3150	9.9094	2.1815	—	—	40.373
SKS + MoM-based	0.9289	30.745	8.0961	38.094	115.80	39.905

Note that the MSE values in this table need to be multiplied by 10⁻¹⁰.