The design difference between Chang'E-1 microwave radiometer (CE-1 MRM) and Chang'E-2 microwave radiometer (CE-2 MRM) is presented in this paper, as well as the data processing algorithm and ground calibration coefficients of CE-2 MRM. Based on the data processing results, the distribution of brightness temperature (TB) of lunar surface is mapped. We propose a normalization model of TBby analyzing the regularity of the TBdistribution and compare the result TBobtained by CE-2 MRM with CE-1 MRM. The discrepancy of TBfor CE-2 MRM results from different nonlinear coefficients is presented at last. It is concluded that the CE-23 GHz, 19.35 GHz and 37 GHz data coincide with earth-based observation, and the discrepancy between CE-1 and CE-2 MRM is smaller than 11 K. There may be a systematic error on 7.8 GHz channel.
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