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::: eSAR Forum :::


20 22 Åë°èÄ«¿îÅÍ º¸±â   ȸ¿ø °¡ÀÔ È¸¿ø ·Î±×ÀÎ °ü¸®ÀÚ Á¢¼Ó --+
Name   Hoonyol Lee
Subject   ¢Ñ nominal mean and dc bias
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

¦­[nauman´Ô²²¼­ ³²±ä ³»¿ë]
¦­sir!
¦­what is the purpose of nominal mean and dc biar while loading the data?
¦­
¦­

°Ô½Ã¹°À» À̸ÞÀÏ·Î º¸³»±â ÇÁ¸°Æ®Ãâ·ÂÀ» À§ÇÑ È­¸éº¸±â
DATE: 2005.08.16 - 11:51

210.115.53.203 - Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)


 ÀÌÀü±Û nominal mean and dc bias
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10ÇöÀç Àаí ÀÖ´Â ±ÛÀÔ´Ï´Ù.¢Ñ nominal mean and dc bias Hoonyol Le... 2005.08.16 32546 *
9es_14_MLC.zip [14 MB] ´Ù¿î¹Þ±âSimple viewes_14_MLC nauman 2005.08.04 28166 1004
8ers_sub [8 MB] ´Ù¿î¹Þ±âSimple viewers_sub Hoonyol Le... 2005.08.04 30813 914
7esar12run.zip [14 MB] ´Ù¿î¹Þ±âSimple viewesar12 result Hoonyol Le... 2005.08.04 27890 1023
6Simple viewes_14_MLC(data) nauman 2005.08.03 25663 *
5Simple viewes_14_MLC(data) nauman 2005.08.03 27321 *
4es_14_MLC.ers [1.1 KB] ´Ù¿î¹Þ±âSimple viewers_14_MLC nauman 2005.08.03 26681 1001
3Simple viewSAR = ÇÕ¼º±¸°æ·¹ÀÌ´õ ÀÌÈÆ¿­ 2005.03.19 25047 *
2Simple view¢Ñ SAR = ÇÕ¼º±¸°æ·¹ÀÌ´õ ¹Ú³ë¿í 2005.03.21 21026 *
1Simple vieweSAR Æ÷·³¿¡ ¿À½Å°ÍÀ» ȯ¿µÇÕ´Ï´Ù. ÀÌÈÆ¿­ 2005.03.19 23007 *
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