Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 904  |  »Ø¸´: 4

Ëïºé¿¡

гæ (СÓÐÃûÆø)

[ÇóÖú] Çó´óÉñÖ¸µ¼ÐÅÔë±ÈµÄÎÊÌâ

¼ÆËãÐÅÔë±Èʱºò
1.ÄÜÁ¿ÊDZàÂëǰµÄ»¹ÊDZàÂëºóµÄÄÜÁ¿³ýÒÔÔëÉùÄÜÁ¿ÄØ£¿
2.Èç¹ûʹÓõıàÂëÖ®ºó£¬±ÈÈç[0 1 0 1],±àÂëºóÊÇ[0 1 0 1 1 0],ÄÇô¼ÙÉè±àÂëǰÄÜÁ¿ÊÇ1£¬±àÂëºóÄÜÁ¿ÊÇ2/3,»¹ÊÇ3/2ÄØ?
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

qsj8362234

½ð³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÐÅÔë±ÈÊÇÎïÀí²ãµÄ¸ÅÄî
±àÂëºóµÄÊý¾Ý[0 1 0 1 1 0]¶ÔÓ¦µÄÐÅºÅµçÆ½Îª[-1 1 -1 1 1 -1]
ÄÜÁ¿Ó¦¸ÃËã¶ÔÓ¦µçƽµÄÄÜÁ¿£¬
2Â¥2012-09-06 14:24:50
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ëïºé¿¡

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by qsj8362234 at 2012-09-06 14:24:50
ÐÅÔë±ÈÊÇÎïÀí²ãµÄ¸ÅÄî
±àÂëºóµÄÊý¾Ý¶ÔÓ¦µÄÐÅºÅµçÆ½Îª
ÄÜÁ¿Ó¦¸ÃËã¶ÔÓ¦µçƽµÄÄÜÁ¿£¬

¿ÉÊǶÔÓ¦µçƽÄÜÁ¿ÊǶàÉÙ°¡£¿
3Â¥2012-09-06 16:32:32
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

³¤°²Ð¡¶¹

½ð³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Ê×ÏÈÇø·ÖÒÔϸÅÄ
Eb£ºÃ¿ÐÅÏ¢bitÄÜÁ¿
Es£ºÃ¿¸ö·¢ËÍ·ûºÅµÄÄÜÁ¿
¹ØÏµÎª£ºEs=R *Eb ÆäÖÐRÊÇÂëÂÊ

ÐÅÔë±È£¨SNR£©£ºÐźÅÔëÉù¹¦ÂʱȠ ¸ß˹ÐŵÀÏÂ
SNR=(Es/T)/(N0*W)  ÆäÖÐÇ°ÃæÊÇ·ûºÅÄÜÁ¿/·ûºÅÖÜÆÚ  ºóÃæÊÇÔëÉù¹¦ÂÊÆ×ÃܶÈ*ÐźŴø¿í
=2Es/N0
=2REb/N0
4Â¥2012-09-06 17:02:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

qsj8362234

½ð³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

ÒýÓûØÌû:
3Â¥: Originally posted by Ëïºé¿¡ at 2012-09-06 16:32:32
¿ÉÊǶÔÓ¦µçƽÄÜÁ¿ÊǶàÉÙ°¡£¿...

ÄãÄÜ¶à¸øµãÐÅϢô ±ÈÈçÄãÒª»ù´ø·ÂÕæ ʲôµ÷ÖÆ·½Ê½£¿ËÙÂÊÊǶàÉٵȵÈ
5Â¥2012-09-07 13:08:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ Ëïºé¿¡ µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Ò»Ö¾Ô¸211 0703»¯Ñ§ 346·ÖÇóµ÷¼Á +26 ÍÁ¶¹er? 2026-04-09 29/1450 2026-04-13 15:15 by ¶À×íÃι³Ç
[¿¼ÑÐ] ²ÄÁÏ299ר˶Çóµ÷¼Á +13 +21 2026-04-09 13/650 2026-04-13 14:16 by ÕÅzhihao
[¿¼ÑÐ] 339Çóµ÷¼Á +4 hanwudada 2026-04-12 4/200 2026-04-13 12:03 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 071000ÉúÎïѧ£¬Ò»Ö¾Ô¸ÉîÛÚ´óѧ296·Ö£¬Çóµ÷¼Á +14 TIckLw 2026-04-06 15/750 2026-04-13 10:59 by ѧzh
[¿¼ÑÐ] 211±¾¿Æ²ÄÁÏ»¯¹¤Çóµ÷¼Á +17 YHLAH 2026-04-11 20/1000 2026-04-13 08:46 by Sammy2
[¿¼ÑÐ] ÉúÎïѧ308Çóµ÷¼Á +5 ÏàÐűػá¹ââÍòÕ 2026-04-11 5/250 2026-04-12 18:14 by zhouxiaoyu
[¿¼ÑÐ] 291Çóµ÷¼Á +11 ¹ØÒä±±. 2026-04-09 12/600 2026-04-12 10:32 by ÄæË®³Ë·ç
[¿¼ÑÐ] 305Çóµ÷¼Á +7 Â꿨°Í¿¨boom 2026-04-11 7/350 2026-04-12 07:35 by zhouxiaoyu
[¿¼ÑÐ] 283Çóµ÷¼Á 086004¿¼Ó¢¶þÊý¶þ +17 ÄǸöàà×Ó 2026-04-10 18/900 2026-04-11 16:27 by Ã÷Ô´ËʱÓÐ
[¿¼ÑÐ] ÖÐҩѧµ÷¼Á ³õÊÔ324 +4 Ñó¸Ê¾Õ¡¢ 2026-04-10 6/300 2026-04-11 09:41 by gong120082
[¿¼ÑÐ] Ò»Ö¾Ô¸¶«±±´óѧ¿ØÖƹ¤³Ì085406Êý¶þÓ¢¶þ385£¬Çóµ÷¼Á +8 Ezra_Zhang 2026-04-09 8/400 2026-04-11 09:15 by Öí»á·É
[¿¼ÑÐ] 263ÄÜÔ´¶¯Á¦×¨Ë¶Çóµ÷¼Á +3 ¼Ó´óºÅ·¹ºÐ´ü 2026-04-10 3/150 2026-04-10 22:23 by 286640313
[¿¼ÑÐ] ÖпÆÔº×Ü·Ö315Çóµ÷¼Á +8 lallalh 2026-04-09 8/400 2026-04-10 19:30 by dick_runner
[¿¼ÑÐ] ²ÄÁÏרҵ344Çóµ÷¼Á +16 hualkop 2026-04-10 21/1050 2026-04-10 17:28 by laoshidan
[¿¼ÑÐ] ³õÊÔ261 +3 AshtÉÙ 2026-04-10 6/300 2026-04-10 16:38 by AshtÉÙ
[¿¼ÑÐ] 266Çóµ÷¼Á +29 ÑôÑôÍÛÈû 2026-04-07 29/1450 2026-04-10 16:20 by ¸ßά´º
[¿¼ÑÐ] µ÷¼ÁÉêÇë086000Ò»Ö¾Ô¸Î÷±±Å©ÁֿƼ¼´óѧÉúÎïÓëÒ½Ò©320·Ö-±¾¿ÆÆë³¹¤Òµ´óѧ +3 ÃÀÃÀŮʿ 2026-04-09 3/150 2026-04-10 10:31 by liuhuiying09
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÄÏʦ·¶´óѧ0702ÎïÀíѧ305µ÷¼Á +4 Äî³£°² 2026-04-07 6/300 2026-04-08 22:53 by bljnqdcc
[¿¼ÑÐ] ÉúÎïѧ328·ÖÇóµ÷¼Á +9 ÉÁµçkkl 2026-04-08 10/500 2026-04-08 21:42 by liuhuiying09
[¿¼ÑÐ] µ÷¼ÁÇóÖú£¨ÉúÎïÓëÒ½Ò©£© +6 @6952 2026-04-06 6/300 2026-04-07 23:52 by lys0704
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û