À̸§°Ë»ö
À̸§°Ë»ö
À̸§°Ë»ö
À̸§°Ë»ö

::: eSAR Forum :::


3 11 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)


 ´ÙÀ½±Û ers_sub
±Û³²±â±â»èÁ¦Çϱâ¼öÁ¤Çϱâ´äº¯´Þ±â°Ë»ö¸ñ·Ï º¸±â

üũµÈ Ç׸ñ ÇѲ¨¹ø¿¡ º¸±â
3ÇöÀç Àаí ÀÖ´Â ±ÛÀÔ´Ï´Ù.¢Ñ nominal mean and dc bias Hoonyol Le... 2005.08.16 32780 *
2ers_sub [8 MB] ´Ù¿î¹Þ±âSimple viewers_sub Hoonyol Le... 2005.08.04 31041 923
1esar12run.zip [14 MB] ´Ù¿î¹Þ±âSimple viewesar12 result Hoonyol Le... 2005.08.04 28050 1036
üũµÈ Ç׸ñ ÇѲ¨¹ø¿¡ »èÁ¦/º¹»ç/À̵¿ Çϱâ
üũµÈ Ç׸ñ »èÁ¦ üũµÈ Ç׸ñ »èÁ¦
üũµÈ Ç׸ñ À̵¿ üũµÈ Ç׸ñ À̵¿
üũµÈ Ç׸ñ º¹»ç üũµÈ Ç׸ñ º¹»ç
ÇöÀçÆäÀÌÁö°¡ ùÆäÀÌÁö ÀÔ´Ï´Ù. ÇöÀçÆäÀÌÁö°¡ ¸¶Áö¸·ÆäÀÌÁö ÀÔ´Ï´Ù.
ÀÌÀü 1 ´ÙÀ½
±Û³²±â±â »õ·Î°íħ
À̸§À» °Ë»öÇ׸ñ¿¡ Ãß°¡/Á¦°ÅÁ¦¸ñÀ» °Ë»öÇ׸ñ¿¡ Ãß°¡/Á¦°Å³»¿ëÀ» °Ë»öÇ׸ñ¿¡ Ãß°¡/Á¦°Å ¸ÞÀÎÈ­¸éÀ¸·Î µ¹¾Æ°¡±â