1.3 Построение логарифмических амплитудочастотных и фазочастотных характеристик разомкнутой системы
АЧХ L(w) = 20·lgA(w)
ФЧХ φ(w) = φ(w)
1.3.1 Логарифмическая амплитудно-частотная характеристика
Сопрягающие частоты имеют вид:
Логарифмическая амплитудно-частотная
характеристика имеет вид:
1.3.2. Логарифмическая фазочастотная характеристика.
w |
φ(w) |
lg(w) |
0.1 |
-89.9887 |
-1 |
0.2 |
-89.9774 |
-0.69897 |
0.3 |
-89.9662 |
-0.52288 |
0.4 |
-89.955 |
-0.39794 |
0.5 |
-89.9438 |
-0.30103 |
0.6 |
-89.9327 |
-0.22185 |
0.7 |
-89.9217 |
-0.1549 |
0.8 |
-89.9108 |
-0.09691 |
0.9 |
-89.9001 |
-0.04576 |
1 |
-89.8894 |
0 |
1.5 |
-89.8384 |
0.176091 |
2 |
-89.792 |
0.30103 |
2.5 |
-89.7511 |
0.39794 |
3 |
-89.7159 |
0.477121 |
3.5 |
-89.6865 |
0.544068 |
4 |
-89.6626 |
0.60206 |
5 |
-89.6295 |
0.69897 |
6 |
-89.6125 |
0.778151 |
7 |
-89.6077 |
0.845098 |
8 |
-89.6115 |
0.90309 |
8.3 |
-89.6139 |
0.919078 |
10 |
-89.635 |
1 |
12 |
-89.6692 |
1.079181 |
14 |
-89.707 |
1.146128 |
16 |
-89.7449 |
1.20412 |
18 |
-89.7813 |
1.255273 |
20 |
-89.8157 |
1.30103 |
25 |
-89.8918 |
1.39794 |
30 |
-89.9557 |
1.477121 |
35 |
-90.0101 |
1.544068 |
40 |
-90.057 |
1.60206 |
45 |
-90.0982 |
1.653213 |
50 |
-90.1346 |
1.69897 |
55 |
-90.1672 |
1.740363 |
60 |
-90.1965 |
1.778151 |
65 |
-90.2229 |
1.812913 |
70 |
-90.2468 |
1.845098 |
75 |
-90.2684 |
1.875061 |
80 |
-90.2879 |
1.90309 |
85 |
-90.3056 |
1.929419 |
90 |
-90.3215 |
1.954243 |
100 |
-90.3485 |
2 |
110 |
-90.3696 |
2.041393 |
120 |
-90.3854 |
2.079181 |
130 |
-90.3962 |
2.113943 |
140 |
-90.4023 |
2.146128 |
150 |
-90.4038 |
2.176091 |
160 |
-90.4008 |
2.20412 |
170 |
-90.3933 |
2.230449 |
180 |
-90.3813 |
2.255273 |
190 |
-90.3646 |
2.278754 |
200 |
-90.3431 |
2.30103 |
210 |
-90.3165 |
2.322219 |
220 |
-90.2847 |
2.342423 |
230 |
-90.2474 |
2.361728 |
240 |
-90.2043 |
2.380211 |
250 |
-90.1554 |
2.39794 |
