Machine Learning-Based Classification for Crop-Type Mapping Using the Fusion of High-Resolution Satellite Imagery in a Semiarid Area

Table 3

Minimum values, maximum values, and amplitudes of the VV, VH, and VV/VH signals for the different classes.

Classes	Signal VV			Signal VH			Signal VV/VH
	Min	Max	Amplitude	Min	Max	Amplitude	Min	Max	Amplitude
Orange	−11.5	−8.7	2.8	−16.9	−14.4	2.5	4.9	6.7	1.8
Olive	−9.5	−7.5	2.1	−15.5	−12.5	3.0	4.5	9.7	5.3
Cereal	−13.0	−7.8	5.2	−19.2	−13.5	5.7	4.9	7.1	2.2
Double cropping	−12.5	−7.1	5.4	−18.6	−13.3	5.3	4.6	9.7	5.1
Fallow	−12.7	−7.6	5.2	−20.4	−14.5	5.9	4.9	9.2	4.3
Bare soil	−12.0	−7.2	4.8	−19.6	−16.4	3.5	7.1	10.7	3.6