The prediction of the radiometric sensitivity of correlation radiometers based on the system parameters requires knowledge of the standard deviation of each measurement due to the finite integration time. Theoretical formulations have been experimentally validated showing the dependence of the standard deviation with the measurement and extended for arbitrary over sampling factors.
Camps, A.; Bara, J.; Torres, F.; Corbella, I.; Monzon, F. Experimental validation of radiometric sensitivity in correlation radiometers. Electronics letters, 1998, vol. 34, núm. 25, p. 2377-2379.