This paper deals with the measurement method on how to obtain the useful data in microwave passive remote sensing. The first case is, in order to obtain the microwave antenna radiative temperature of a real object (usually it is bigger) with radiometer at a real height, one can take the imitation method to get the data by measuring a smaller imitating model of the real object with the radiometer at a lower height, the relation between the real surveying and the imitation surveying is given in this paper. The second case is, the relation between the antenna radiative temperature of an object measured with the radiometer at a height and that of the same object measured with the radiometer at another height is obtained, and here the antenna radiative temperature of a plate similar to the down-surveying area of that object is required. The experimental results are in agreement, and it shows that these methods are available in the microwave radiative measurement.
"Measurement methods of the microwave radiative temperature", Proc. SPIE 1935, Microwave Instrumentation for Remote Sensing of the Earth, (19 August 1993); doi: 10.1117/12.152598; https://doi.org/10.1117/12.152598