1. .
2. .. 1-3 , . 4.
3. . 3. , . 4.
4. 4 5 MATLAB, MATLAB :
1) W i(p) tf (transfer function), . , W 1(p) = 10 / (2 ∙ p 2 + 0,5∙ p) :
>> sys 1 = tf ([10], [2 0.5 0]).
Enter
,
s , .
2) W (p) , . , W (p) . 7 (W (p) = (W 1(p) + W 2(p))∙ W 3(p)∙ W 4(p)) : >> sys = (sys 1 + sys 2)* sys 3* sys 4.
Enter .
5. , nyquist (sys) , bode (sys) .
6. ω (. . 6) φ(j ω) W (j ω) . φ(j ω) < -180o, , . h(ω ) ψ(ω ) (. . 6), ω ω .
7. , , (0 -j (ω)) . ω, , 0,5∙ω 1,5∙ω, ω = 10 :
>> nyquist (sys,[5 15]).
8. (. . 4 5) (ω). (ω) > 1, (ω) ≤ 1 . , , .
9. , :
- ;
- ;
- .
3