Thank you for your interest in eSAR processor.
ERS SAR raw data is 5bit. i.e. from 0 to 31 as integer. However, the actual IQ values are centred at 0, ranging from -15.5 to 15.5 using all quadrants of complex domain. This is when the nominal_mean_I or nominal_mean_Q are 15.5. DC_bias values correct systematic deviation of centre value from 0.
Strange letters appearing on this eSAR Forum is all korean. You can neglect them.
cheers,
Hoonyol
┃[nauman님께서 남긴 내용]
┃sir!
┃what is the purpose of nominal mean and dc biar while loading the data?
┃
┃
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