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ECE 4213/5213 MODULE 3 Index 1. Distribution Theory and the Dirac Delta ............................................3.0 – 3.23 2. Derivative of a Distribution, δ’(t) .......................................................3.23 – 3.24 3. Riemann-Lebesgue Lemma ................................................................3.25 – 3.29 4. Time Domain Representation of Continuous-Time Signals ...............3.29 – 3.32 5. Eigenvalues, Eigenvectors, Eigenfunctions ........................................3.33 – 3.34 6. Spectral Basis and Fourier Transform ................................................3.35 – 3.39 7. Frequency Response ..........................................................................3.40 – 3.43 8. Effect of Multiplying a Sinusoid times a Complex Eigenvalue ...........3.44 – 3.46 9. Distributional Fourier Transforms .....................................................3.47 – 3.52 10. Symmetry Properties of the Fourier Transform ................................3.53 – 3.54 11. More Fourier Transform Properties ..................................................3.55 – 3.59 12. Uncertainty Principle, Proof of the Heisenberg-Weyl Inequality ......3.60 – 3.88 13. Discrete-Time Fourier Transform (DTFT) ...........................................3.89 – 3.98 14. Spectral Phase, Generalized Phase, Phase Unwrapping ...................3.99 – 3.101 15. DTFT of δ[n] ........................................................................................3.102 – 3.103 16. Symmetry of the DTFT .......................................................................3.104 – 3.105 17. Some DTFT Pairs.................................................................................3.106 – 3.107 18. DTFT Properties..................................................................................3.108 – 3.111 19. Sinusoid Times a Complex Eigenvalue (Discrete Time) .....................3.112 – 3.114 20. Discrete-Time LTI System Connections..............................................3.115 – 3.117 21. Gain Function .....................................................................................3.117 22. Phase Delay and Group Delay, Linear Phase .....................................3.118 – 3.120 23. FIR & IIR Filters ...................................................................................3.121 – 3.125 24. Phase Response, the FIR Linear Phase Trick ......................................3.126 – 3.129

ECE 4213/5213 MODULE 3 - University of Oklahoma

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Page 1: ECE 4213/5213 MODULE 3 - University of Oklahoma

ECE 4213/5213

MODULE 3

Index

1. Distribution Theory and the Dirac Delta ............................................3.0 – 3.23

2. Derivative of a Distribution, δ’(t) .......................................................3.23 – 3.24

3. Riemann-Lebesgue Lemma ................................................................3.25 – 3.29

4. Time Domain Representation of Continuous-Time Signals ...............3.29 – 3.32

5. Eigenvalues, Eigenvectors, Eigenfunctions ........................................3.33 – 3.34

6. Spectral Basis and Fourier Transform ................................................3.35 – 3.39

7. Frequency Response ..........................................................................3.40 – 3.43

8. Effect of Multiplying a Sinusoid times a Complex Eigenvalue ...........3.44 – 3.46

9. Distributional Fourier Transforms .....................................................3.47 – 3.52

10. Symmetry Properties of the Fourier Transform ................................3.53 – 3.54

11. More Fourier Transform Properties ..................................................3.55 – 3.59

12. Uncertainty Principle, Proof of the Heisenberg-Weyl Inequality ......3.60 – 3.88

13. Discrete-Time Fourier Transform (DTFT) ...........................................3.89 – 3.98

14. Spectral Phase, Generalized Phase, Phase Unwrapping ...................3.99 – 3.101

15. DTFT of δ[n] ........................................................................................3.102 – 3.103

16. Symmetry of the DTFT .......................................................................3.104 – 3.105

17. Some DTFT Pairs.................................................................................3.106 – 3.107

18. DTFT Properties ..................................................................................3.108 – 3.111

19. Sinusoid Times a Complex Eigenvalue (Discrete Time) .....................3.112 – 3.114

20. Discrete-Time LTI System Connections ..............................................3.115 – 3.117

21. Gain Function .....................................................................................3.117

22. Phase Delay and Group Delay, Linear Phase .....................................3.118 – 3.120

23. FIR & IIR Filters ...................................................................................3.121 – 3.125

24. Phase Response, the FIR Linear Phase Trick ......................................3.126 – 3.129

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- ~ VJe lJ\e.e~ ~ t\\~ \1M~l\ l~ '(e~\l(})\~.e..- CI@ ~ ~IL ~O\lf\tl~ \l)c(Ahc-eq l~ 1-;W\e aw)

-,-

Q'Cet ~d ' · · w~ heed \ t -1-0 be s;' k; VI Y) Y '111\ +\me. a~ i v'\ .f2.,re~ u..e 11\ C:J 5,'v./lulf-ctvteoudtj-.

- the -tl.lll\c-t,"OVjt:t\ ---6 a.f t1Ae. "llll C er-t";/I tj ~('illlCi\",'L ,(, kl'ltiwl'\ o~ -ti,~ l+.el)e~beq-J-WeyJ. lVle~Uctli+~ .

-} This \V\-e~\A"li+~ ~'fOv',de) e'( 1>lMlAti+4.-t;ve \l'V'A\I-T QI/) ~Q ~eJ re~ +0 w~,ch '\ .. fl.A.Yl(4,"a/\

Cdi'l\ be. ~ilM Lll+aV\eDU5~ (0 (Oc/i ceJ '111\ -rime ~v;d I VI {\-eI(, vl€V\ c,J-

-" le+ lC.(-~) £ eu~). The. nor-WI 0+ xCt) is

(J.. V\.1A1NI ber 3 iVev'I b&

Ih«(i;) IIL7- = [~ hut.) 1"2 j t 11/

2.,

- ~D +~e. +--Uf\( trW)

\ _ I ~ (t\l1.. \ \ "t.ffi \ \~.. J

15 ·~o v t tA.VltA

fAt; 5 ~ til; -t ~ if e p;; ~

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-1\ V\t; I \\-iLt)lI-;:' \-xft) I ~ 'rr\{J Y be f i ~o rOtA s ~ \V\te.r~-ciEd ~ C{ f'roL.b\\iJ d~~;t-(} 1--ttCtt ~ lACtVlh-ke's

tk~ dts-\-{ibu-h'cvl o~ +k .s1~1II,,1 ~ ev)9rjj i VI ti \;Y'!~ •

- :;fV\ce 'XCt) 6 t:{J«.) ) we halle qlso twj:- XC.a..) G-L~ .

-lllle hrYVVI 0+ Xenj IS tl I\IAWl~r Cj11!e(1 bd-

II XL JL) II~::. \ I ")((.12. ) 12 .::\12-~

- ~o t~~ +uV\c+tW)

I ... \xcn. \ \2- h t \\ )((.Jl.)[\:.... J \s 7/0) ItS ~V\):.. til ..-e~ )

tt~ IMKj ~e. fijOfOosld- '1l1\t~rettJ a~ ct p vo~bdt'f;y­Je\A ~; t d ~L{ we +: "" ~ t ~ IMtVltt .( i eS +it Q dis -1-6 h lA.+t CVj

o~ ~ ":>1,j~411~ evt~~ iill ~t l.{€'v\l~J' -"i1te- I\1e.uV'l + i *Ie- of j( Ct] 'I S t~-e VVleQ.V\ of +~ e.... .

~ d ~ I - I "Y I'.t) ( '2. , I I \ 'XL +)Il~ 1\..(.: ..

<t) ::: E[t1 -:;:. 1l~+JI\t"" it l-xct) \"2. dt

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Joebob Havlicek
Text Box
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For E)(/i I¥\fl,o) S'lA..fP" se 'XfI\J;:- rf[ft J.~ or" -2.], 0-9 9 D - T~eV\ X Lej~) = .i + e -J 2"-1

-:: [eJI..l + e -,jW] e -JIA.l

= [2c.o~ w 1 e-3w

--.':7 he I( e) 2 ( (_ I (\ CDS <;J ',s Cl r elPt - lit; V<Oc:( -tt..< VI( f: WI )

-7>Buf S'-i-r'(-I-iy 5pe4 k:.:lAj ',+ ct:ttl"f be fl"e.

5re4r ... 1 MtifI~II\'-tt..<tL~ ACw )) beo'u~t' 2C05"'" ,~ \1\ ~ q ... +-w e -P-w- tu 6. n) 7Z. ] a h.) r,J €: [-7f.)"TYz,)

...J

~ W~2 re.. Gt S" a t tv e. M IIj IA" +u.d e. -.f' fA <'It' -+' -. ~ 41 +0

b~ ..."" 0 W 6t I I w •

- (0 .-k-",d tltt ~ +lru e 5 Fe (~r~ I IYIII ~ V\; tuM J\. L"V) J W EO W (IV td Y\e.ei.J.r; Ie -FI'\( \1 ""~e 5';.5 VI o..f 2c05 tV 1)1 us .. ':j ctn..tl->er -t (A Ll\t-1-"W\

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-rl!l.e (II W t2. (OV IJ.. \e.:r At u)::. 2 \ os '-> I) W"'j{~ i~ eve.x'lIlJ"'~"e -p/o.

- ~\A.~ VJ<:.. WO\)\J Q\So ~ti\}e -\0 ~~"'t:A ct w~y to ~e t 5 (w) )V\+-() ~e. 5'P ec-h'-q \ '? ~tt ~ e. + LA. V\. { +~M <9 (w) ~

to \ 1\ ===> 13ec.~v..~e. +.1 :: e. J ttvJ. -1..:: e J ) ~"'I~ (r.1 V\

be dOll\e. hy de Q iVl I 'j aV\o-t~e.r ~I,t \!\C-+:W\ ~ (w)

CtcCo-rd. tlA j +D ~ ~C~)

To get

I 1

, • -rr -l1J

2 - Ie /"

A (tA)):; 2l Co 5 w l

9(w) = - [VJ-~(I<J)J

-I, -... -, -,

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- A~.-\·~ Qc--h.",,, (~ U I\.Je 5 Irq b Ie. -fu.-- I-i 01\6< Iy ll'" j -ft.e.

..f r e 'tl ",e" ()' re~",",-~ e 0.(- a V\ L T:r.. +; t+-ev-.

=} 75e"'~use -!-he 5pe,..-h--.. ( ph.'de o.f- Heel"") ckl'-f''tt'-tel'i-;ees f'~e del"y ".f +ite -f:Hev-_

..

:::;:. BtA1- ~ (t.J) doe5 "Crt wtTeSf""'''' --tv de I"y ... I+- J' LA. s+ C{ CC OUV\ +5 -Por <;;; \ 5 V\ #

~ fi,r +t,;~ feu5"""J D"lP e.Vl.jl\l\eers wi[1 oHev'i

a. ( I u IV A L w ) t-o b e tl. 5 .j /1\ e c;( r-e "d {' VI. "' (t " t-/I\ •

\', e.) i .f k-r I'\. ') ::: a [ 11] -t cJ' [~- 2.-J )

I T\ S - , w '-, l \ 0 (' + I!:) ." IN If " -\.-.e -r v\te~ V \' el/\~ 'I/lter5 "\ ~,

'c-u l4 Le jw)::: [2 tt1$ ~ 1 e-j

A [fA)) ::: 2 C/)~ w

OCw) ::: - ~

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X-re (e6-u) = Acw ) CoS QCw)

x.'w> Le tu) c A(IN) <; /1'\ 9(yJ)

[ X~e- (e~w) + X~"'I (e'Q--J)

U(c-fe.rI1 [ X('M k iw) J :\ / f-.. re (e ¥t..J) )

- lw- COWt P vt.}er I Wi pleW1-evt f&t. +!~ '5; -Bt ~ "" ~ +"1'1 -z. /1 ~ 1\ ( .. I-r OV"'\ w \/1 f'e t!A YV1 ~

v&tl\Ae 6~+w-ee~ -11 tdt ·~ Tl,

~'t. f _9i;4/l7l1~~ 11

- _ .- .- -- - f\

- 7111) t'i ('Ct/(~d -hte \p y" (Y1C I pet ( I( I/et! ue C)~ -r-/Jte f h Vi S tt .

N 0...,.. C ., ILL C{ A ell / - X I '!AI))\'" \ I t;;.-' -t~e... !\)DO~ w.".;"es 1'...(.;1 Lev WI'f!.A. c.apI-;-,l\.. --.

letreu-{ to \v0\cCt..te -t~ <f'fil/\C(r~l \rtAlv..t of ...,L,e.. fhttse ~" 'See S'"e,-+iCtl\ ~. L ( OV\ P ~ j e 2ft; ..

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- The I\e Jl< t i ve of- tk j 0< : " .. (\ .. VI d"," <W') I S

ct'tll~ -hte '-..'- A:iteV) ucj-, CV\ -GLtIf\(+l QrJ0

- IV\ ~e L..tf.b M~\I\u(.t.\.) M,+V-M. lA.,es a. SCV'll'+ C~r\{"'-( A ·Por f-k;~ ~

~ le ~w) -:: A(w) e ~ etw)

\ fHe~) \ -;: f:\(w)

9\ [w) ::: 20 ~IO ~Lw) : - 201'j lo I\ l1 :;- - §(t.J].

Ph~se.. \)e\lt~ & b tCJ~ bet~ ..... ret

- Le.....t 1-\ ~e a. 6\\C~ete --\- i Wl-e L "I:t. ~'d c;-~e...,... W\T~ &t r e" \ , 1M. ~'-A \~.e f ·eS~GM s..e ~ '( LI\") •

-T~eM J ~! we JVj .. t S~W) I+- th~ l~rf#\.+ \ S

't'til~ -::: ~co~ [t,.oJ;>1I -r qJ 1) -\-IA-e. o.n ~ lA + \ S ~ \' IJ G.vI 10 't

j0(') -:: KAt/.Vo)CG?S [tV",,! .. d)["'~)+ ¢ J ::- \c. MiNo) co~ [woe n - -~~;)) -t- ¢ ]

~ The jlltp",t is sctt1etl) ~VlJ ttlso .Jelc"'i@d b d' . -11~") ~GlWlple $ 7 w~ere. tf{eb'lAj -- A{tA1}eJ~(uJ

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-- For -hAis reu~1 'rt is ,ff~HL 1 1)8;') 1~'8U; -fo o-PSI'jVD L.:T:1-- *-~ l0<;: ~

5vcIA ~C<+ ~e spe(+vG<1 f~Ctse e{'-J);::~We~'wj \s \ \ 11\ eC( ("'

(0

- SVII ~ S'I <; few-.. s fA. re c", II@a \.\ l; VI"" t( (" P ~lt s.e.. L-lJ: .{:~, \-e{~. II

~ --riA e ~ ('(IV P c\el4 't o+ -tlAe L 'T.:r. t'Hte.y U - d - 8t>t>t< t;;~tA..1l""f~ J

\':l ~'VIWI 107 "Gr.w) ;::: - aw e Lw) , [(,,7) "'111 f' 2' 7

- l{ e(W) i( llVler:.f, ~e-VJ -the j('ClVP de/tty.. IS ("cNIJ-1&tMt ~ IV\ plAt 51'Vlvso;d~ a {e

deltijeo. '<J -iw9{w) $&(lAIIr1e5

- For ~evle(&tl ()IW)/ ~e \V\h~.{p{etCt+(~ I~ -tk,,+ &t ~ l{OV~ o~ 8 ;I1IJS (.?;&~ w)t~ ~fe~IJ0Ilc1 MM Wo wll I a.1I ~e delc.~d b~ Ctr p (0')( ,. WI €.t 4 e 10 iw {)(w)) <:;;. fA IIA pi (Jf •

W::Wo

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-"XY\ 1e.I1.er ... l" tiV\JiVlj -f!-I.e '5"pt!'('-\:r,,\ p~lde,

0- (,.. ) cA- 0tI"1 L i"L .(',' \+ ey~ Ce J' w) C.M\. h-e..

-I"" 'VIrAVly Ca~es i+ ,""v,/ actlA..Ail1

i--h{> 5rwP ele Itlj eli'rel'-fl,y U5"VIj Io.e. .on . ~ f fer +0 -ft'11 J fh~ Ww\ III ttt

d I J -r;;; arc.,f q y\ IA.. .::: ~ arK. I-/- V(7... ~)<

See p. i ot -r~e C'tlU v- J e. -Pw-I.M tA..llt.

5 ~eef., I 'tltJA.perf

-7T/2. <art'+~1A u < ¥

- t! ill.J. i of +~e. ; iN'I pIA.. l~e. re $ fW' (e.. h r '11 1rt(.~ e-\Je.../\

()-or orJ..tJ.. 5f INI.lMe{ ... y ot bO"Lt t-ke WI i cbollA. t--l )

-=) ne til -r"'ef'e 1 S ~ -h{\ c.k f~ ~t rvVl K-R.s i+ ~tt~i fo -PI' ~J e (w).

- I+ 1S. ()l '+f.td fl.., ... t l>Je /;VI/I p,,,ve &..+e, 11, .... +: {f If 75 f'I-R.. Pi¥\d ~r{ll) htt.~ 5~( Wl Me+,-y

a-6ovt -the 1lII; cI 1'0;111+, ~e", Ii k6 S 11'nl'~r p~tt I.e. •

- .:I.. cttl/ -h-.~s +ric-I<:. 't~e C( li~e£fr ""It~e I-'X-~ hvtl,{l po 1Ne.,,- 7-r , e-Ic.. ."

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elV/tl. hr"l h,..$ evtvl or oj.).. S-'jMWle+"y abt'tr/" ~e. IvIlclroltl.+; ~ell\ yN C~'" ea.~;ll w'/"i-+e /-fLe'lw) i"l. --I-\.,e ~ W\ A ( .... ) e. j e ( ""') by +"" c .f:t.trf"j 0 LA.. + h~lf & ~;5t..e£1 t!.we.~ df e-J"<.J -rka.J- ~rfee1n.

hr~ ) I

1 ~ j ~V\ C> I 2

eve", Sy'~e+r;( ~ bOil + -ti-l-e

I /1\1\ i d r O{II\r- t) ~ 1.. ,.

Iilej~) = i + e -j?~

-;:: [e. J"-' -i- e. -~ w 1 e -j<-u

= (2{osw J e-j'-v

A LWJ:: 2 cos w

t"~ ~ s I~ ,5 ev\er ~ , ", ~d If V\eu r ph"" ~ e. J

be CCtU!.e.. At .... ) « 0 fu- fA) €: [-ill 1Iiz) a kJ f'w fA) € (Tr/Z ) 7T J ..., See Pfl 3-99 fitrvvj~ j-99 D #

Page 134: ECE 4213/5213 MODULE 3 - University of Oklahoma

-

~,,~ ~es-+ rower := 2

hAI-r tllle- ~ tj ke5-+ ptJrNe{" -:::.-1-~(+or ~I.A+ e "'J'~

= (eJw + L + e.-J"·"l e-Jl.U

:= [ 2 + 2c.os vJ J e -J'-I.l

AlfN) -;. 2 ~\- 2Co5w @- (w):: - ~

E:'t ~ k[~ J'::: t oT~) t- *oT~-f) ~ t 6'[~-ll -t- t or~-:,) HceS ..... J::: ~ ( t + e.-J'"" + e. -:)2.",-, -\- e. -j 3<-..1"1

h I~ ke ~.f f 17 IN e.r :;::. '"3 h~\t f"l.-le ~'jS~e5-f- rower ~ 3/~ .furfw ~t e .... ~ 31. iAJ

\ [e~ 31z.w J i1. k) ... J Ii t.V ... J 31a. ~Je-J 3~ w ;; 4 -t e +e +" e -::: ~ ( 2cvs C~..., J + 2cvs Ow) ]e-) 3/z~ ::: ~ ({O5 C.~w) -r Cos G'-l) ] e. -y~ t.v

3 --€A.,) 2.-

Page 135: ECE 4213/5213 MODULE 3 - University of Oklahoma

- I.p kCVl) hAs oJJ 5,/lYtfMe-l-ry I{b"",-t -the 8 WI I d1'()i'lfj 'il1e.¥1 Y tv.. I.N ill 5 et fi I/le~ i //I s+e", J of c~SlV)e ~ "

EY : -

ftCW):; 25((\ Gw ) B( fA)) ::: - Cf I-\J - 7I"~) ;: