28
) cos( ) ( t t x = π π π π 1 t 0 π 2 π 2 π 2 2 3 π 1 1 Figure 6.1

x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

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Page 1: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)cos()( ttx =

π−π

− ππ1

t0

π2

π2

π22

11−

Figure 6.1

Page 2: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(τR

π−π

− ππ21 )(τxxR

τ0

π2

π2

π22

3π1

−2

Figure 6.2

Page 3: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)sin()( ttx =

−2

3π1

0π−

2

π2π π2

2

1

t

21−

Figure 6.3

Page 4: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(τR

π−π

− ππ21 )(τxxR

τ0

π2

π2

π22

3π1

−2

Figure 6.4

Page 5: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

π π1

)( tx )cos( t 0),cos( <+ ττt

τπ− π

21 )(τxxR

t0

π−2

− π2

π223π

1−

t

)cos()cos( tt =+ π)()i ( π τ0

2

π223π

21

0

π−2π

− π2π

π223π

1

)( tx )cos( t )cos(:)cos()cos(

tofversionflippedtt =+ π)

2cos()sin( π

+=− tt

t0≥τ

)( tx )sin( t 0)sin( <+ ττt

21−

0≥τ

t0

π−2π

− π2π

π223π

1

1

)( tx )sin( t 0),sin( <+ ττt

t1 )(τxxR

1−

π π1

)( tx )sin( t

)2

sin()cos( π+= tt

)sin()sin( tt −=+ π τ0

π− π2π

π223π

21

1−

0

π−2π

− π2π

π223π

1−

t

0≥τ

2

Figure 6.5

Page 6: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)( tx )( tx1

⋅⋅⋅⋅⋅⋅⋅⋅t

22−1 1

+1

+1

21

−21

τ−−2

τ−2

τ+−2

τ+2

Figure 6.6

Page 7: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(τxxR )(xx

21

⋅⋅⋅⋅τ

22− 1− 1 30

Figure 6.7

Page 8: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

0)()( tt

π π1

0),cos()( == τtty)sin()( ttx =

0

π−2π

− π2π

π223π

1−

t1

)()sin()2

( txtty −=−=+π2

Figure 6.8

Page 9: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(τR

2π2

1 )(τyyR

0 π

2

π21−

τ

2

Figure 6.9

Page 10: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(R

2π2

1 )(τyyR

τπ−

− π2π

10),sin()( == τttx )cos()( tty =

t 0 π π2

21

τ0π2

23π

1−

)()()( π

t

)()cos()2

( tyttx ==+

Figure 6.10

Page 11: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)cos( t )2cos( t1

0

1

t

1−

Figure 6.11

Page 12: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)()( )()( 0ttxty −= α)( tx

Figure 6.12

Page 13: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)( tx )( tx1

⋅⋅⋅⋅⋅⋅⋅⋅t

Τ

Figure 6.13

Page 14: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(τxxR )(xx

21

⋅⋅⋅⋅⋅⋅⋅⋅τ

Τ0

Figure 6.14

Page 15: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(τR )(τxyR

1 )(τR21

⋅⋅⋅⋅⋅⋅⋅⋅

)(τxxR

τ

Τ00tΤ−0tΤ− Τ+0t

Estimation range for 0tg 0

Figure 6.15

Page 16: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(τxyR )(τyxR ′)(xy )(yx

τ

0t0τ

0t0

Figure 6.16

Page 17: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(τxyR )(τyxR ′)(xy )(yx

τ

0t0τ

0t0

Figure 6.17

Page 18: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)( )( tx

0)( ≥t1

0,)( ≥+ ττtx )( tx 0,)( <+ ττtx

tτ−Ττ− Ττ−Ττ−

Figure 6.18

Page 19: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(τR )(τxxR

Τ

τ0Τ− Τ

Figure 6.19

Page 20: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(tx

0),( <+ ττtx

t0 τ−

Figure 6.20

Page 21: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

1

)(τxxR

a21

0 τ

Figure 6.21

Page 22: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(tx

1

t0

Figure 6.22

Page 23: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(ωxxS

2

1a !herearound

edconcentratenergyofmost

ω0

Figure 6.23

Page 24: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)( thLTI system)( tx )( ty

)(ωX )(ωH )(ωY

Figure 6.24

Page 25: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(tx

1

t0

Figure 6.25

Page 26: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

LTI system)cos()( ttx = )( ty

)( th)(tx

1

)( th

t0

Figure 6.26

Page 27: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)(kPxx

14

0 k1− 1

Figure 6.27

Page 28: x(t) = cos( - SKKUdspl.skku.ac.kr/home_course/sigsys/note/figure/Chapter6.pdf · 2015. 3. 12. · π π 1 x(t) cos(t) cos(t +τ),τ

)( kP

41

)( kPxx

0 k1− 1

2

1a

222 1|)(|

kakH

+=

11

2 +a 11

2 +a

0 k1− 1

1+a 1+a

)( kPyy

1 1

1

0 k1 1

)1(412 +a

1− 1

Figure 6.28