❋❖❙❉❊▼ ✷✵✶✺
❙♦❢t✇❛r❡ ❉❡✜♥❡❞ ❘❛❞✐♦ ❞❡✈r♦♦♠
❆r✐t❤♠❡t✐❝ ❜❛s❡❞ ✐♠♣❧❡♠❡♥t❛t✐♦♥ ♦❢ ❛ q✉❛❞r❛t✉r❡ ❋▼ ❉❡♠♦❞✉❧❛t♦r ❙❉❘ ✐♥ ●♥✉❘❛❞✐♦ ❉❡♥✐s ❇❡❞❡r♦✈ ✭❉▲✸❖❈❑✮
tr - - PowerPoint PPT Presentation
tr r rtt s tt qrtr
❋❖❙❉❊▼ ✷✵✶✺
❙♦❢t✇❛r❡ ❉❡✜♥❡❞ ❘❛❞✐♦ ❞❡✈r♦♦♠
❆r✐t❤♠❡t✐❝ ❜❛s❡❞ ✐♠♣❧❡♠❡♥t❛t✐♦♥ ♦❢ ❛ q✉❛❞r❛t✉r❡ ❋▼ ❉❡♠♦❞✉❧❛t♦r ❙❉❘ ✐♥ ●♥✉❘❛❞✐♦ ❉❡♥✐s ❇❡❞❡r♦✈ ✭❉▲✸❖❈❑✮
❖✈❡r✈✐❡✇
❖✈❡r✇✐❡✇✿ ✶✳ ❇❛❝❦❣r♦✉♥❞ ♦❢ ❛♥❣❧❡ ♠♦❞✉❧❛t✐♦♥ ✷✳ ❚r❛❞✐t✐♦♥❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r ✸✳ ❆r✐t❤♠❡t✐❝❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r ✹✳ Pr❡s❡♥t❛t✐♦♥ ♦❢ r❡s✉❧ts ✺✳ ❇✉❣ ✜①✐♥❣ ✐♥ ❢❛st ❛t❛♥
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✶
✶✳ ❇❛❝❦❣r♦✉♥❞ ♦❢ ❛♥❣❧❡ ♠♦❞✉❧❛t✐♦♥
ωc ❢r❡q✉❡♥❝② ♦❢ ❝❛rr✐❡r✱ ♦♥ ✇❤✐❝❤ t❤❡ ♠♦❞✉❧❛t❡❞ s✐❣♥❛❧ ✐s tr❛♥s♠✐t❡❞ ✐♥ t❤❡ r❡❛❧ ✇♦r❧❞ f(t) ∈ R ❧♦✇ ❢r❡q✉❡♥❝② ♠♦❞✉❧❛t✐♥❣ s✐❣♥❛❧ y(t) ∈ R r❡❛❧ s✐❣♥❛❧ tr❛♥s♠✐t❡❞ ❜② ωc
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✷
✶✳ ❇❛❝❦❣r♦✉♥❞ ♦❢ ❛♥❣❧❡ ♠♦❞✉❧❛t✐♦♥
❘❡❝❡✐✈✐♥❣ ♦❢ ❛♥❣❧❡ ♠♦❞✉❧❛t✐♦♥ yT(t) ∈ C tr❛♥s♠✐t❡❞ s✐❣♥❛❧ ✐♥ ❧♦✇ ♣❛ss ❛r❡❛ yT(t) = yTR(t)
+j · yTI(t)
✭✶✮
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✸
✶✳ ❇❛❝❦❣r♦✉♥❞ ♦❢ ❛♥❣❧❡ ♠♦❞✉❧❛t✐♦♥
❋♦r♠❛❧ ❞❡✜♥✐t✐♦♥ ♦❢ ❆♥❣❧❡ ♠♦❞✉❧❛t✐♦♥ y(t) = A · cos
Φ(t)
✭✷✮ PM : Φ(t) = ϕ0 + α · f(t) ✭✸✮ FM : Ω(t) = dΦ(t) dt = ˙ Φ = ω0 + α · f(t) ✭✹✮ y(t) = A · cos
ω0t + α ·
t
f(τ) dτ + ϕ0
✭✺✮ yT(t) = A · e
j
t
f(τ) dτ+ϕ0
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✹
✷✳ ❚r❛❞✐t✐♦♥❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r
▼❛t❤❡♠❛t✐❝❛❧ ❇❛❝❦❣r♦✉♥❞ ❢♦r ❛ tr❛❞✐t✐♦♥❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r ✭■✮ ❇❛s✐❝ ✐❞❡❛ ✐s t❤❡ ♠✉❧t✐♣❧✐❝❛t✐♦♥ ♦❢ ❝✉rr❡♥t s❛♠♣❧❡ ✇✐t❤ ❝♦♥❥✉❣❛t❡ ❝♦♠✲ ♣❧❡① ✈❡rs✐♦♥ ♦❢ ♣r❡✈✐❡✇ s❛♠♣❧❡✳ yT(nts) · y∗
T((n − 1)ts)
✭✼✮ = A·e
j
nts
f(τ) dτ+ϕ0
A·e
−j
(n−1)ts
f(τ) dτ+ϕ0
j
nts
f(t) dt
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✺
✷✳ ❚r❛❞✐t✐♦♥❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r
▼❛t❤❡♠❛t✐❝❛❧ ❇❛❝❦❣r♦✉♥❞ ❢♦r ❛ tr❛❞✐t✐♦♥❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r ✭■■✮ ❚❤❡ s♣❡❝✐✜❝ ✐♥t❡❣r❛❧ ❝❛♥ ❜❡ ❛♣♣r♦①✐♠❛t❡❞ ❜② s♠❛❧❧ ✈❛❧✉❡ ♦❢ ts ✐♥ ❢♦❧❧♦✇✐♥❣ ✇❛②✿
nts
f(t) dt ≈ tsf(nts) ◆♦✇ ✇❡ ❝❛♥ s✐♠♣❧✐❢② ✭✽✮ (8) = A2 · e
j
j
♣❛❣❡ ✻
✷✳ ❚r❛❞✐t✐♦♥❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r
◗✉❛❞r❛t✉r❡ ❋▼✲❉❡♠♦❞ ✐♥ ●♥✉❘❛❞✐♦
1 2πts
·arc
T(n − 1)
✭✾✮ ✧❛r❝✧ ✐♠♣❧❡♠❡♥t❛t✐♦♥ ❝❛♥ ❜❡ ❜❛s❡❞ ♦♥ ❛r❝t❛♥✱ ❛r❝❝♦s✱ ❛r❝s✐♥ ❛♥❞ ♥❡❡❞s ♦❢t❡♥ ❤✐❣❤ ❝♦♠♣✉t❛t✐♦♥ ❡✛♦rt✳
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✼
✸✳ ❆r✐t❤♠❡t✐❝❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r
▼❛t❤❡♠❛t✐❝❛❧ ❇❛❝❦❣r♦✉♥❞ ❢♦r ❛♥ ❛r✐t❤♠❡t✐❝❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r ✭■✮ ❇❛s✐❝ ✐❞❡❛ ✐s t❤❡ ♠✉❧t✐♣❧✐❝❛t✐♦♥ ♦❢ ❞❡r✐✈❛t✐♦♥ s✐❣♥❛❧ ✇✐t❤ ✇✐t❤ ❝♦♥❥✉❣❛t❡ ❝♦♠♣❧❡① s✐❣♥❛❧✳ ˙ yT(t) · y∗
T(t)
✭✶✵✮ ˙ yT(t) = j · A ·
j
t
f(τ) dτ+ϕ0
T(t) = A · e −j
t
f(τ) dτ+ϕ0
˙ yT(t) · y∗
T(t) = j · A2
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✽
✸✳ ❆r✐t❤♠❡t✐❝❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r
▼❛t❤❡♠❛t✐❝❛❧ ❇❛❝❦❣r♦✉♥❞ ❢♦r ❛♥ ❛r✐t❤♠❡t✐❝❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r ✭■■✮ ˙ yT(t) · y∗
T(t) = (i′ + j · q′) · (i − j · q)
= (i′ · i + q′ · q)
+j · (i · q′ − i′ · q) ! = j · A2
(i · q′ − i′ · q) = A2
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✾
✸✳ ❆r✐t❤♠❡t✐❝❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r
▼❛t❤❡♠❛t✐❝❛❧ ❇❛❝❦❣r♦✉♥❞ ❢♦r ❛♥ ❛r✐t❤♠❡t✐❝❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r ✭■■■✮ ◆♦✇ ❧❡t ✉s ❛ss✉♠❡ t❤❛t in := i(nts) in−1 := i((n − 1)ts) qn := q(nts) qn−1 := q((n − 1)ts) ◆♦✇ ✇❡ ❝❛♥ ✇r✐t❡ t❤❡ ❧❡❢t s✐t❡ ♦❢ ✭✶✷✮ ❛s ❢♦❧❧♦✇ i · q′ − i′ · q = in qn − qn−1 ts − in − in−1 ts qn = 1 ts (inqn − inqn−1 − inqn + in−1qn) = 1 ts (in−1qn − inqn−1) ✭✶✸✮
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✶✵
✸✳ ❆r✐t❤♠❡t✐❝❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r
▼❛t❤❡♠❛t✐❝❛❧ ❇❛❝❦❣r♦✉♥❞ ❢♦r ❛♥ ❛r✐t❤♠❡t✐❝❛❧ ❋▼✲❉❡♠♦❞✉❧❛t♦r ✭■❱✮ ◆♦✇ ✇❡ ♣✉t t❤❡ ✭✶✸✮ ✐♥t♦ ✭✶✷✮ ❛♥❞ ♦❜t❛✐♥✿ 1 ts (in−1qn − inqn−1) = A2
2πts · (i2
n + q2 n)
(in−1qn − inqn−1) = ∆f + dev · f(nts) ✭✶✹✮ ◆♦✇ ✇❡ ❝❛♥ r❡✇r✐t❡ t❤✐s r❡s✉❧t s✐♠✐❧❛r ❧✐❦❡ ✭✾✮
1 2πts
·in−1qn − inqn−1 i2
n + q2 n
= ∆f + dev · f(nts) ✭✶✺✮
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✶✶
✹✳ Pr❡s❡♥t❛t✐♦♥ ♦❢ r❡s✉❧ts
◆♦✇ ❜♦t❤ ❉❡♠♦❞✉❧❛t♦rs ✐♥ ❝❛rt❡s✐❛♥ ❢♦r♠ ✧❛r❝✧ ❜❛s❡❞ ❋▼✲❉❡♠♦❞✉❧❛t♦r✿
= Gain
1 2πts
·arc
∆f + dev · f(nts) ✭✶✻✮ ✧❛r✐t❤♠❡t✐❝✧ ❜❛s❡❞ ❋▼✲❉❡♠♦❞✉❧❛t♦r✿
1 2πts
·in−1qn − inqn−1 i2
n + q2 n
= ∆f + dev · f(nts) ✭✶✼✮
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✶✷
✹✳ Pr❡s❡♥t❛t✐♦♥ ♦❢ r❡s✉❧ts
❈♦♠♣❛r✐s♦♥ ♦♥ ❝♦♠♣✉t❛t✐♦♥ ♣❡r❢♦r♠❛♥❝❡ ✧❛r❝✧ ■♠♣❧❡♠❡♥t❛✐♦♥
❙❙❊✸ ✶✶✱✷✽s ✾✱✾✵s ✧❛r✐t❤♠❡t✐❝✧ ■♠♣❧❡♠❡♥t❛t✐♦♥
❙❙❊✸ ✶ t❤r❡❛❞ ✸✱✶✵s ✶✱✽✵s ✷ t❤r❡❛❞s ✶✱✻✺s ✶✱✵✹s ✸ t❤r❡❛❞s ✶✱✷✸s ✵✱✽✶s ✹ t❤r❡❛❞s ✵✱✾✽s ✵✱✻✺s ❚✐♠❡s ❛r❡ ♠❡❛s✉r❡❞ ❢♦r ❝♦♠♣✉t❛t✐♦♥ ♦❢ s♦♠❡ ♠✐❧❧✐♦♥s ♦❢ s❛♠♣❧❡s ♦♥ ❛ ✹ ❝♦r❡ ✐✼✲❈P❯✳
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✶✸
✹✳ Pr❡s❡♥t❛t✐♦♥ ♦❢ r❡s✉❧ts
❱✐s✉❛❧✐③❛t✐♦♥ ♦❢ ❞❡♠♦❞✉❧❛t✐♦♥ ❡rr♦r ❉❡✈✐❛t✐♦♥ ✐♥ ❍③ fmod ✐♥ ❍③ fs ✐♥ ❍③ εarc ✐♥ ❞❇ εarith ✐♥ ❞❇ ✶✵✵✵ ✶✵ ✽✵✵✵ ✲✶✵✼ ✲✷✷ ✶✵✵✵ ✶✵ ✶✹✵✵✵ ✲✶✶✶ ✲✸✷ ✶✵✵✵ ✶✵ ✷✺✵✵✵ ✲✶✶✶ ✲✹✷ ✶✵✵✵ ✶✵ ✹✺✵✵✵ ✲✶✶✶ ✲✺✷ ✶✵✵ ✶✵ ✽✵✵✵ ✲✶✵✺ ✲✻✷ ✶✵✵ ✶✵✵ ✽✵✵✵ ✲✼✷ ✲✻✵ ✶✵✵ ✹✵✵ ✽✵✵✵ ✲✹✽ ✲✹✻ ✶✵✵✵ ✶✵✵✵ ✽✵✵✵ ✲✸✷ ✲✷✵ ✶✷✵✵ ✷✹✵✵ ✷✽✽✵✵ ✲✸✾ ✲✸✹
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✶✹
✺✳ ❇✉❣ ✜①✐♥❣ ✐♥ ❢❛st ❛t❛♥
❇✉❣ ✜①✐♥❣ ✐♥ t❤❡ ❢❛st ❛t❛♥ ✐♠♣❧❡♠❡♥t❛t✐♦♥ ■ error(x) := fast atan(x) − arctan(x)
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✶✺
✺✳ ❇✉❣ ✜①✐♥❣ ✐♥ ❢❛st ❛t❛♥
❇✉❣ ✜①✐♥❣ ✐♥ t❤❡ ❢❛st ❛t❛♥ ✐♠♣❧❡♠❡♥t❛t✐♦♥ ■■ ■♥ t❤❡ ♦r✐❣✐♥❛❧ ❱❡rs✐♦♥ t❤❡ ♠❛①✐♠❛❧ ❡rr♦r ✇❛s ❜❡❧♦✇ 0.111◦✱ ✐♥ t❤❡ ✜①❡❞ ✈❡rs✐♦♥ t❤❡ ❡rr♦r ✐s ❜❡❧♦✇ 8.2 · 10−5◦
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✶✻
❊♥❞
❋♦r ❧❛t❡r q✉❡st✐♦♥s✿ ❉❡♥✐s✳❇❡❞❡r♦✈❅❣♠①✳❞❡
❋❖❙❉❊▼ ✷✵✶✺✱ ✵✶✲❢❡❜✲✷✵✶✺ ♣❛❣❡ ✶✼