Ishni bajarish bо‘yicha yo’riqnoma

Topshiriqni bajarish tartibi
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Matlab buyruqlari
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Matlab ni ishchi xolatini tozalash (xotira).
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clear all
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Matlab oynasini tozalash.
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clc
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tf buyrug‘i bо‘yicha qisqacha ma’lumot (yordam) olish .
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help tf
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Ushbu buyruqning bajarilishi fayli adresini aniqlash.
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which('tf')
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tf obyekti sifatida uzatish funksiyasini1 kiriting.
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n = [n2 n1 n0]
d = [1 d2 d1 d0]
f = tf ( n, d )
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Shubu obyektda uzatish funksiyasi surati va maxrajlari kо‘rinishini tekshirib kо‘ring.
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[n1,d1] = tfdata ( f, 'v' )
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Uzatish funksiyasining nul va qutblarini toping.
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z = zero ( f )
p = pole ( f )
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О‘rnatilgan rejimda zvenoning kuchaytirish koeffitsiyentini toping.
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k = dcgain ( f )
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Sistemaning о‘tazuvchanlik palasasini aniqlang (ACHX da kichik chastota dB dan kichik qiymatni tashkil etadi).
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b = bandwidth ( f )
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Fazo xolatida sistemaning modelini quring.
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f_ss = ss ( f )
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Shunday qilingki, tо‘g‘ri uzatish koeffitsiyenti 1 ga teng bо‘lsin.
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f_ss.d = 1
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О‘rnatilgan rejimda zvenoning yangi kuchaytirish koeffitsiyentini toping.
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k1 = dcgain ( f_ss )
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va koeffitsiyentlar qanday bog‘langan? Nima uchun?
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«Nul-qutb» formasida berilgan sistemaning modelini quring.
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f_zp = zpk ( f )
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Ishchi fazoda qanday о‘zgaruvchilar mavjud, tekshiring.
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who yoki whos
(farqi nimada?)
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Sistemaning nul va qutblarini joylashish grafigini quring.
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pzmap ( f )
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Barcha elementar zvenolar uchun dempfirlash koeffitsiyenti va xususiy chastotalarni aniqlang.
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[wc,ksi,p] = damp ( f )
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LTIViewer modulini ishga tushiring.
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Ltiview
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f modelini yuklang.
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File – Import
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Ushbu sistemaning impulsli xarakteristikasini (vazn funksiyasini) quring.
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SО‘T – Plot Types - Impulse
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f_ss modelini yuklang.
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File – Import
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Ikkinchi sistemaning impulsli xarakteristikasi qurilgan-mi, tekshiring?
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SО‘TM – Systems
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f sistemani ajrating. Turli sistemalar impulsli xarakteristikalari nima uchun bir xol?
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SО‘T – Systems
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Ikkala sistemani ulang.
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SО‘T – Systems
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Sistemaning о‘tkinchi xarakteristikasini quring.
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SО‘T – Plot Types – Step
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Grafikda kо‘zda tuzilgan xar bir funksiyalarni bajaring:
maksimum
о‘tish jarayoni vaqti2
о‘sish vaqti (qaror qiymatning 10% dan 90% gacha)
qaror qiymati
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SО‘T – Characteristics:
Peak Response
Settling Time
Rise Time
Steady State
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Doira-belgili parametrlarning son qiymatlari bilan ekranda kо‘rsatish uchun sichqoncha tugmasini bosing.
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Qurilgan grafikni alohida oynada eksport qiling.
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File – Print to Figure
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Grafikni vektorli metafayl formatida buferga kо‘chirib oling.
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print -dmeta
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Hisobotga (Microsoft Word) buferdagi grafikni quying.
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SО‘T - Vstavit
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LTIViewer oynasini yoping.
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Chastotaviy xarakteristikani qurish uchun chastota massivini yarating (logarifmik shkalada teng taqsimlangan dan gacha intervalda 100 nuquta).
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w = logspace(-1, 2, 100);
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Berilgan sistemaning chastotaviy xarakteristikasini hisoblang3…
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r = freqresp ( f, w );
r = r(:);
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… va abssissa о‘qi bо‘yicha logarifmik masshtabli о‘qda uni quring.
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semilogx ( w, abs(r) )
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Grafikni vektorli metafayl formatida buferga kо‘chirib oling.
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print -dmeta
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Hisobotga (Microsoft Word) buferdagi grafikni quying. Ctatistik rejimda kuchaytirish koeffitsiyentini grafikdan qanday topish mumkinligini va sistemaning о‘tkazuvchanlik palasasini qanday aniqlashni tushuntiring.
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SО‘T – Vstavit
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Matlab ning buyruqlar oynasidan tashqari oynalarni bekiting.
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Davri 4 sekundga (jami 5 ta impuls) teng bо‘lgan birlik amplitudali uchburchaksimon impulsli signalni quring.
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[u,t] = gensig('square',4);
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Modellashtirishni bajaring va kirish ma’lumotlar orqali f sistemaning chiqish signali grafigini quring.
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lsim (f, u, t)
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Grafikni vektorli metafayl formatida buferga kо‘chirib oling.
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print -dmeta
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Hisobotga (Microsoft Word) buferdagi grafikni quying.
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SО‘T – Vstavit
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