... ) 34. 4(vvP3vv)P3P2()P2P(h)33 .4( hFv 1 C)32 .4( 1VFavg 1 3s3,c3 1 2s3,c2s2,c2s2,c1s1,c1avgi)g1(C1iii++++=−=−=∑+=ββ 51, 0v ;48 ,0v ;43 ,0v)35 .4( 24 1 24 23v3 21 i2i===+= ... J, J +4, J +1, J+5, J+2, J+6, J+3, J+7 (4. 37) Trong trûúâng húåp naây, J =1+ 8.i, i=0, 1, 2, (32/ 8 -1 ) Tẩi tưëc àưå 12 00 b/s. J, J+8, J +1, J+9, J+2, J +10 , J+3, J +11 , J +4, J +12 , J+5, J +13 , J+6, ... thõ chêët lûúång khung. g(x) = x12 + x 11 + x10 + x9 + x8 + x4 + x + 1 (trûúâng húåp 9600 b/s) (4. 44) g(x) = x8 + x7 + x4 + x3 + x + 1 (trûúâng húåp 48 00 b/s) (4. 45) Khúãi taåo kïnh lûu lûúång...