1754
.pdf171
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48 |
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-8 |
-1 |
8 |
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0.15 |
0.07 |
0.78 |
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49 |
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-4 |
-3 |
7 |
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0.40 |
0.17 |
0.43 |
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Форма таблицы ответов: |
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N=28 |
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mx |
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x |
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M[ X ] |
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M[X 2] |
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M[p(X)] |
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2.25 |
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6.32 |
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5.28 |
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12.84 |
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1.33 |
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M[(p(X))-1] |
M[-log2 p(X)] |
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S |
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-0.33 |
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-1.00 |
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18.35 |
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2) Вероятностное описание двух символов
Два символа X и Y имеют возможные значения x1, x2 и y1, y2 соответственно. Задана матрица совместных вероятностей с элементами pj,k=p(xj,yk). Найти:
ряд распределения случайной величины X, повторить то же при
каждом из условий Y=y1 |
и Y=y2, а также mx, |
x, |
M[-log2 p(X,Y)]. |
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N |
x1 |
x2 |
p1,1 p2,1 p1,2 |
p2,2 |
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0 |
4 |
8 |
0.11 |
0.36 |
0.31 |
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1 |
3 |
5 |
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0.22 |
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2 |
0 |
7 |
0.17 |
0.28 |
0.45 |
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3 |
4 |
8 |
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0.10 |
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4 |
2 |
5 |
0.25 |
0.27 |
0.22 |
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5 |
1 |
7 |
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0.26 |
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6 |
1 |
7 |
0.30 |
0.29 |
0.14 |
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7 |
2 |
8 |
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0.27 |
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8 |
2 |
9 |
0.21 |
0.20 |
0.25 |
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9 |
3 |
5 |
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0.34 |
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10 |
4 |
7 |
0.28 |
0.27 |
0.23 |
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11 |
0 |
7 |
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0.22 |
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12 |
0 |
9 |
0.36 |
0.10 |
0.28 |
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13 |
2 |
8 |
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0.26 |
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14 |
4 |
8 |
0.24 |
0.21 |
0.17 |
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15 |
4 |
8 |
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0.38 |
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16 |
3 |
8 |
0.33 |
0.11 |
0.19 |
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17 |
0 |
7 |
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0.37 |
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18 |
4 |
9 |
0.18 |
0.27 |
0.20 |
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19 |
4 |
9 |
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0.35 |
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20 |
3 |
9 |
0.01 |
0.18 |
0.38 |
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172
21 |
1 |
9 |
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0.43 |
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22 |
4 |
8 |
0.24 |
0.27 |
0.34 |
23 |
3 |
6 |
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0.15 |
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24 |
4 |
9 |
0.38 |
0.20 |
0.37 |
25 |
0 |
9 |
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0.05 |
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26 |
2 |
7 |
0.65 |
0.13 |
0.10 |
27 |
1 |
10 |
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0.12 |
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28 |
3 |
6 |
0.21 |
0.26 |
0.24 |
29 |
1 |
9 |
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0.29 |
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30 |
2 |
6 |
0.44 |
0.10 |
0.18 |
31 |
1 |
10 |
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0.28 |
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32 |
0 |
6 |
0.59 |
0.25 |
0.09 |
33 |
0 |
8 |
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0.07 |
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34 |
2 |
5 |
0.44 |
0.02 |
0.25 |
35 |
3 |
8 |
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0.29 |
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36 |
3 |
5 |
0.24 |
0.18 |
0.29 |
37 |
1 |
9 |
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0.29 |
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38 |
0 |
9 |
0.21 |
0.32 |
0.12 |
39 |
4 |
6 |
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0.35 |
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40 |
3 |
9 |
0.22 |
0.21 |
0.27 |
41 |
4 |
10 |
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0.30 |
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42 |
2 |
7 |
0.41 |
0.36 |
0.18 |
43 |
2 |
5 |
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0.05 |
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44 |
4 |
5 |
0.02 |
0.45 |
0.11 |
45 |
3 |
6 |
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0.42 |
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46 |
0 |
5 |
0.14 |
0.32 |
0.39 |
47 |
3 |
10 |
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0.15 |
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48 |
2 |
6 |
0.57 |
0.08 |
0.11 |
49 |
3 |
5 |
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0.24 |
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0.28 |
0.28 |
0.31 |
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0.13 |
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0.12 |
0.42 |
0.41 |
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0.05 |
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0.10 |
0.21 |
0.41 |
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0.28 |
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0.20 |
0.38 |
0.33 |
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0.09 |
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0.11 |
0.36 |
0.27 |
173
0.26
0.33 0.07 0.17
0.43
0.07 0.47 0.26
0.20
0.22 0.33 0.10
0.35
0.20 0.29 0.19
0.32
0.22 0.34 0.06
0.38
0.21 0.14 0.09
0.56
0.11 0.26 0.20
0.43
0.10 0.25 0.34
0.31
0.45 0.09 0.03
0.43
0.29 0.25 0.21
0.25
0.29 0.16 0.37
0.18
0.27 0.21 0.27
0.25
0.04 0.39 0.29
0.28
0.02 0.38 0.31
0.29
0.19 0.13 0.32
0.36
0.24 0.17 0.21
0.38
0.30 0.23 0.11
0.36
0.14 0.37 0.09
0.40
0.11 0.15 0.47
174
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0.27 |
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0.34 |
0.05 |
0.24 |
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0.37 |
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Форма таблицы ответов: |
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N=28 |
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p(x1) |
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p(x2) |
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p(x1/y1) |
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p(x2/y1) |
p(x1/y2) |
p(x2/y2) |
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-2.25 |
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6.32 |
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5.28 |
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12.84 |
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1.33 |
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-0.33 |
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mx |
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x |
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M[-log2 p(X,Y)] |
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S |
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1.00 |
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4.24 |
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-25.14 |
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18.35 |
3) Аналого-цифровое преобразование непрерывных сигналов
m-разрядный АЦП рассчитан на входные напряжения в интервале (Umin, Umax) и проводит квантование во времени с шагом
t=1. Записать последовательность, состоящую из 5 двоичных комбинаций на выходе АЦП, если на вход поступает сигнал U(t)=u0+u1t+u2t2, для 0 ≤t≤4. Найти среднеквадратическую величину ошибки квантования по уровню для данного сигнала ζ
и затем ее теоретическое значение ζo= u/(√12), где |
u – шаг |
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квантования по уровню. |
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Полученные двоичные комбинации представить в форме |
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целых неотрицательных десятичных чисел Z0,Z1,…,Z4, напри- |
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мер: 00011010=26. |
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N |
m |
Umin |
Umax |
u0 |
u1 |
u2 |
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0 |
7 |
-0.13 |
53.09 |
-0.1 |
-2.5 |
3.9 |
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1 |
9 |
-8.65 |
6.40 |
-2.5 |
9.8 |
-2.7 |
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2 |
9 |
-7.59 |
6.40 |
-5.7 |
7.9 |
-1.3 |
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3 |
4 |
-112.08 |
-4.14 |
-4.2 |
-6.4 |
-3.4 |
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4 |
6 |
-236.27 |
-9.36 |
-9.5 |
-4.0 |
-9.5 |
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5 |
6 |
4.62 |
72.38 |
6.9 |
2.5 |
3.4 |
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6 |
5 |
-0.67 |
92.88 |
-0.5 |
3.8 |
4.8 |
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7 |
4 |
-141.36 |
1.02 |
1.0 |
-2.4 |
-6.1 |
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8 |
7 |
-210.31 |
-8.27 |
-8.4 |
-3.4 |
-8.5 |
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9 |
6 |
0.00 |
73.49 |
0.0 |
5.7 |
3.1 |
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10 |
9 |
-36.74 |
2.13 |
-1.6 |
7.1 |
-3.4 |
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11 |
4 |
-11.58 |
18.37 |
-8.7 |
0.3 |
1.6 |
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12 |
7 |
5.55 |
117.24 |
8.3 |
-5.6 |
8.1 |
|
175
13 |
4 |
1.34 |
110.04 |
2.0 |
2.6 |
6.0 |
14 |
7 |
-134.84 |
1.52 |
1.5 |
3.5 |
-7.3 |
15 |
4 |
-157.07 |
-9.06 |
-9.2 |
-2.0 |
-6.3 |
16 |
9 |
-42.46 |
-6.89 |
-9.5 |
5.2 |
-2.7 |
17 |
4 |
-75.34 |
2.23 |
1.4 |
5.9 |
-5.1 |
18 |
8 |
-23.03 |
-3.25 |
-3.3 |
-1.1 |
-0.6 |
19 |
9 |
-123.53 |
0.41 |
0.4 |
-0.9 |
-5.6 |
20 |
8 |
-131.78 |
5.48 |
5.4 |
-1.7 |
-6.1 |
21 |
7 |
-192.61 |
-0.69 |
-0.7 |
-9.6 |
-6.6 |
22 |
5 |
6.62 |
53.09 |
9.9 |
7.0 |
0.9 |
23 |
7 |
2.47 |
71.56 |
3.7 |
1.9 |
3.7 |
24 |
9 |
4.88 |
122.32 |
7.3 |
-1.3 |
7.4 |
25 |
7 |
-9.72 |
113.18 |
-7.3 |
-3.1 |
8.2 |
26 |
9 |
-33.41 |
-1.08 |
-1.1 |
-9.6 |
0.9 |
27 |
4 |
-63.63 |
7.21 |
6.2 |
5.7 |
-4.8 |
28 |
5 |
-173.84 |
-4.92 |
-5.0 |
5.0 |
-9.1 |
29 |
9 |
1.81 |
24.36 |
9.2 |
-9.9 |
3.4 |
30 |
9 |
-102.49 |
-1.77 |
-1.8 |
-8.0 |
-2.7 |
31 |
7 |
4.21 |
75.52 |
6.4 |
-5.8 |
5.7 |
32 |
4 |
-2.13 |
4.87 |
4.8 |
-2.0 |
0.1 |
33 |
6 |
-5.32 |
124.25 |
-4.0 |
7.6 |
6.0 |
34 |
6 |
-2.13 |
151.86 |
-1.6 |
1.4 |
9.1 |
35 |
4 |
-76.01 |
0.10 |
0.1 |
-9.1 |
-1.3 |
36 |
4 |
-5.99 |
141.20 |
-4.5 |
1.5 |
8.6 |
37 |
8 |
-2.66 |
98.67 |
-2.0 |
2.8 |
5.5 |
38 |
5 |
-108.75 |
-3.25 |
-3.3 |
-7.6 |
-3.0 |
39 |
9 |
-3.99 |
11.57 |
-3.0 |
8.0 |
-1.1 |
40 |
5 |
-152.68 |
4.57 |
4.5 |
-2.6 |
-6.8 |
41 |
4 |
-9.85 |
74.10 |
-7.4 |
-1.5 |
5.4 |
42 |
5 |
-168.38 |
-0.10 |
-0.1 |
-7.6 |
-6.0 |
43 |
4 |
6.09 |
47.00 |
9.1 |
7.3 |
0.5 |
44 |
7 |
-236.54 |
-1.28 |
-1.3 |
-8.5 |
-8.9 |
45 |
6 |
-8.39 |
84.15 |
-6.3 |
-5.7 |
7.0 |
46 |
4 |
-153.08 |
1.02 |
1.0 |
6.2 |
-8.8 |
47 |
4 |
-8.79 |
86.28 |
-6.6 |
-6.7 |
7.4 |
48 |
6 |
-213.64 |
-4.83 |
-4.9 |
-7.7 |
-7.8 |
49 |
4 |
6.62 |
133.49 |
9.9 |
6.8 |
5.9 |
Форма таблицы ответов:
176
N=28
Z0 |
Z1 |
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Z2 |
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Z3 |
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Z4 |
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25 |
|
32 |
28 |
184 |
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133 |
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ζ |
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ζo |
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S |
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0.33 |
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1.05 |
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218.35 |
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177
9.2Индивидуальное задание №2
4)Нормальные случайные величины
Система случайных величин Х,У имеет нормальное распределение W(x,y), которое характеризуется вектором-строкой математических ожиданий a=(mx,my) и ковариационной матри-
цей R. Найти: |
x, |
y, |
|
коэффициент ковариации r, |
значение ус- |
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ловного СКО |
x(yо), |
величину средней взаимной информации |
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I M log2 |
W ( X Y ) |
, |
xmp(yo) – наиболее вероятное значение |
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W ( X ) |
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х при заданном уо. |
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|
N |
mx |
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my |
R11 |
R22 |
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R12 |
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yo |
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0 |
-9.97 |
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-7.05 |
4.42 |
6.14 |
0.43 |
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1 |
-6.13 |
-7.17 |
|
-6.86 |
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|
2 |
1.70 |
|
3.86 |
5.82 |
0.82 |
-1.91 |
- |
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|
3 |
-2.99 |
-1.47 |
6.83 |
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|
4 |
6.46 |
|
9.33 |
6.32 |
6.57 |
0.31 |
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|
5 |
-6.52 |
-6.93 |
|
4.65 |
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|
6 |
4.21 |
|
6.43 |
5.09 |
1.14 |
-1.91 |
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|
7 |
-3.92 |
-6.17 |
|
0.42 |
|
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|
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|
8 |
-8.17 |
6.34 |
6.99 |
2.35 |
3.11 |
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|
9 |
-7.05 |
-6.89 |
|
9.93 |
|
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|
||||
|
10 |
9.77 |
|
4.64 |
1.98 |
9.21 |
-2.96 |
- |
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|
11 |
-7.62 |
-4.41 |
3.01 |
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|
12 |
-9.82 |
3.64 |
1.87 |
6.66 |
2.99 |
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|
13 |
0.63 |
|
4.44 |
|
11.12 |
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|
14 |
2.04 |
|
-7.54 |
4.63 |
4.98 |
-4.26 |
- |
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|
15 |
-6.68 |
6.69 |
2.06 |
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|
16 |
-0.98 |
0.34 |
1.07 |
5.02 |
-0.74 |
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|
17 |
-8.86 |
-1.48 |
|
7.02 |
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|
18 |
5.67 |
|
8.99 |
1.03 |
5.14 |
-0.46 |
- |
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|
19 |
0.40 |
|
0.99 |
4.31 |
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|
20 |
7.52 |
|
-0.57 |
9.32 |
6.91 |
7.02 |
|
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|||
|
21 |
9.12 |
|
6.94 |
|
9.60 |
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|
22 |
0.79 |
|
-0.88 |
8.96 |
6.10 |
0.50 |
|
|
178
23 |
-0.76 |
9.66 |
|
-1.55 |
|
24 |
7.24 |
4.78 |
2.35 |
0.16 |
0.23 |
25 |
5.59 |
-6.08 |
|
3.84 |
|
26 |
9.94 |
6.79 |
4.17 |
1.10 |
-1.01 |
27 |
2.23 |
0.02 |
|
5.17 |
|
28 |
-4.68 |
-9.45 |
6.32 |
8.65 |
0.37 |
29 |
6.80 |
1.45 |
|
-2.86 |
|
30 |
-2.48 |
0.63 |
4.57 |
7.50 |
-1.16 |
31 |
3.54 |
6.86 |
|
7.08 |
|
32 |
-9.82 |
3.15 |
6.02 |
3.86 |
0.81 |
33 |
-4.48 |
6.84 |
|
2.66 |
|
34 |
1.76 |
-7.80 |
8.56 |
5.57 |
2.49 |
35 |
6.75 |
-3.72 |
|
-0.55 |
|
36 |
-0.30 |
-4.28 |
6.29 |
9.56 |
-0.98 |
37 |
4.87 |
-7.19 |
|
12.97 |
|
38 |
-0.84 |
6.69 |
5.70 |
1.85 |
-3.14 |
39 |
4.89 |
2.00 |
|
2.63 |
|
40 |
1.98 |
-4.95 |
1.92 |
1.40 |
0.33 |
41 |
4.70 |
-9.97 |
|
0.47 |
|
42 |
1.45 |
6.12 |
5.60 |
9.52 |
1.10 |
43 |
-6.97 |
-5.79 |
|
9.39 |
|
44 |
-1.50 |
1.06 |
2.50 |
0.38 |
-0.53 - |
45 |
0.34 |
-7.72 |
0.15 |
|
|
46 |
5.03 |
5.04 |
6.09 |
0.65 |
-1.93 |
47 |
-6.62 |
0.87 |
|
11.19 |
|
48 |
-0.16 |
-1.27 |
5.89 |
1.40 |
-2.35 |
49 |
4.00 |
3.92 |
|
5.71 |
|
|
|
|
5.00 |
8.66 |
4.58 |
|
|
|
|
-4.99 |
|
|
|
|
7.43 |
7.24 |
4.47 |
|
|
|
|
9.88 |
|
|
|
|
6.24 |
0.25 |
0.47 |
|
|
|
|
0.65 |
|
|
|
|
8.06 |
7.11 |
0.45 |
|
|
|
|
-9.19 |
|
|
|
|
5.80 |
2.25 |
-2.53 |
|
|
|
|
2.23 |
|
|
|
|
9.12 |
1.77 |
1.79 |
179
|
|
|
3.01 |
|
|
|
|
7.30 |
3.48 |
-4.63 |
|
|
|
|
9.58 |
|
|
|
|
6.71 |
3.74 |
1.42 |
|
|
|
|
4.67 |
|
|
|
|
3.22 |
8.04 |
-4.13 |
|
|
|
|
11.97 |
|
|
|
|
3.13 |
5.31 |
3.58 |
|
|
|
|
-6.01 |
|
|
|
|
1.17 |
8.00 |
-1.35 |
- |
|
|
1.72 |
|
|
|
|
|
8.53 |
1.53 |
3.41 |
|
|
|
|
-2.44 |
|
|
|
|
1.63 |
4.08 |
-1.05 |
- |
|
|
4.20 |
|
|
|
|
|
0.89 |
1.45 |
-0.29 |
|
|
|
|
7.17 |
|
|
|
|
6.45 |
0.76 |
-1.22 |
|
|
|
|
3.19 |
|
|
|
|
5.50 |
5.78 |
-2.87 |
- |
|
|
3.18 |
|
|
|
|
|
4.15 |
5.53 |
3.78 |
|
|
|
|
-9.46 |
|
|
|
|
4.71 |
3.18 |
3.05 |
|
|
|
|
6.84 |
|
|
|
|
1.61 |
8.10 |
-2.97 |
- |
|
|
2.06 |
|
|
|
|
|
7.41 |
2.91 |
-2.99 |
|
|
|
|
3.41 |
|
|
|
|
8.28 |
8.96 |
4.66 |
|
|
|
|
-7.24 |
|
|
|
|
8.75 |
7.46 |
-4.58 |
|
|
|
|
5.19 |
|
|
|
|
3.07 |
3.68 |
-3.27 |
|
|
|
|
2.05 |
|
|
|
|
1.36 |
2.36 |
-1.36 |
- |
|
|
0.83 |
|
|
|
|
|
7.87 |
2.37 |
-1.60 |
|
180
4.13
Форма таблицы ответов:
N=28
x |
|
y |
|
r |
|
x(yо) |
|
25 |
32 |
|
28 |
|
184 |
|
|
I |
|
|
xmp(yo) |
|
S |
|
|
133 |
|
|
0.33 |
218.35 |
|