№1 amaliyot ishi mavzu: Axborot xarakteristikalarini hisoblash Ishdan maqsad

Misol 1. Axborot sifatida quyidagi belgilar ketma ketligini olamiz: 
АВААDDDDDBAACCCCEAFFFFDAAAA
f – bayroqcha;
i – takrorlangan iboraning uzunligi;
j - takrorlangan iboraning nechi qadam oldin qaytarilganligi;
s – ochiq xolatda uzatilgan belgi.
N
chiq
= 14*(1+8)+7*(1+3+5) = 189 (bit)
N
kir 
= 30*8=240 bita. Axborot xajmini kamaytirish natijasida olingan yutuk 
240-189= 51 bit ga teng.
Misol 2. Axborot sifatida quyidagi belgilar ketma ketligini olamiz: 
AAAABBCCDDEEEABBBCDDAAAAEEAB
Qadam
Siljituvchi oyna
Tak
rorlanga
n ibora
Kodlashtirilgan ma’lumot
Iboralar
Bufer
f
i
j
s
1
-
AAAABB
C
0
A
2
A
AAABBC
C
0
A
3
AA
AABBCC
D
AA
1
2
2
-
4
AAA
BBCCDDE
0
B
5
AAAAB
BCCDDEE
0
B
6
AAAABB
CCDDEEE
0
C
7
AAAABBC
CDDEEEA
0
C
8
AAAABBCC
DDEEEAB
AB
1
2
5
-
9
AAAABBCC
D
BBCDDA
A
BBC
1
3
5
-
10
AAAABBCC
DD
DDAAAA
E
AAAA
1
4
1
0
-
11
AAAABBCC
DDE
EEAB
AB
1
2
8
-

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Mustakil ishlash uchun topshiriqlar
Variant
xabarlar
1
BBCCCCDEEEEFFFFGGGGFFFFFFDD
2
DFABBBEECEDDEFFFAEBBCBBBBBBC
3
CCCCCCCCCCCBBBBBAAAADDDDEEEF
4
BCDEEFAACCADEEDDDEDBAAEEEDDD
5
AAAAAAAABBAAAABBBCCCCCDDDDDEEE
6
CEDDBCEFABBBFDDFAEBAADDDEEAAA
7
BBCBBDBBDEEFDABBDABBBBACACCEG
8
DDFEBBCAADAEFFBEGHAABFFBD
9
BBCBBBCDDEDAAADDFFGGHHEE
10
DDECBFFEEEAAADBBBEEEAAAAABBB
11
CAADDDAEDADDEAAEBEFBEDEFEEA
12
FFFBBCDEEAAFDFFGBBGFADAABFFFF
13
CEEFFDDDEBBAAAEDEDAECBAADDD
14
EEEEBBBEEEEBBCCCCDDDDFFFFAEEEE
15
GBDBBBADDABADAAAFFFEEEEBBBEE
16
BBBAAAEDDAAABBFEFFDDEEGAAAAA
17
FFFBBCDEEAAFDFFGBBGFADAAA
18
GFFFFBBBBAAAACCFFFFFCCDDE
19
ABBCEHABCAEGAAAAAADADDDD
20
AAAAAAABBCCDDEEFFGGHHHAAAA
21
ABBBCEDDEFFFAEBBCCCCADAAABB
22
DDDDDDDDAAABBBCCCDDDEEEFFF

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