Surface Shape Detection with a Single Far-Field Intensity by Combined Amplitude and Phase Retrieval

Table 3

Recovery accuracy of the method under different frequencies.

f (GHz)	0.3	0.4	0.5	0.6	0.7	0.8
NMSE of Ce (%)	1.05	1.67	3.17	6.11	10.32	16.28
RMS of δr (mm)	0.136	0.169	0.236	0.330	0.429	0.540